Cryogenic technology
•Download as PPTX, PDF•
5 likes•5,082 views
Cryogenic technology involves using rocket propellants at extremely low temperatures. Liquid oxygen and hydrogen offer the highest energy efficiency for rocket engines. Some applications of cryogenic technology include space vehicles, grinding, superconductivity, food industry, and body preservation. The United States was the first to develop cryogenic rocket engines using liquid oxygen and hydrogen. India has also successfully launched rockets using cryogenic technology. The process involves pressurizing and pumping liquid nitrogen for cooling before combustion in the engine's nozzle. Advantages include high energy per unit mass of propellants, clean combustion producing only water vapor, and low cost of liquid oxygen compared to other fuels.
Report
Share
Report
Share
Recommended
cryogenic engine ppt by santosh
This document provides an overview of cryogenic rocket engines. It discusses that cryogenic fuels require storage at extremely low temperatures to remain liquid, and the most widely used combination is liquid hydrogen and liquid oxygen. The major components of cryogenic rocket engines are described, including the combustion chamber, injectors, pumps, valves and tanks. Advantages are high energy density and clean, non-toxic exhaust, while challenges include difficulties storing cryogenic liquids for long periods. Common applications are in rockets utilizing these high-performance fuels.
Cryogenic engineering ppt
Cryogenics is the study of production and behavior of materials at very low temperatures below -150°C. Some important cryogenic fluids include liquid hydrogen, helium, oxygen, nitrogen and air. Key applications of cryogenics include rocket propulsion, magnetic resonance imaging, superconductivity, frozen food storage and more. Cryogenic technology enables efficient rocket engines using liquid hydrogen and oxygen propellants. India has developed its own cryogenic engine GSLV Mk III to launch satellites using this technology. Future prospects include more efficient ion engines and alternative nuclear or solar thermal rocket concepts.
Cryogenics
Cryogenics is the study of very low temperatures, including temperatures below -150°C that can be attained using cryogenic liquids like liquid nitrogen and liquid helium stored in Dewar flasks. Some key applications of cryogenics discussed include cryogenic rocket engines, which provide high energy per unit mass and were pioneered by the US and India. Cryogenic grinding is also discussed as an application, which avoids problems with heat generation, tool wear, and oxidation seen in conventional grinding. Both advantages like lower grinding costs and finer particle sizes, and disadvantages like high operating costs are reviewed. Health hazards associated with cryogenic liquids like frostbite and cold embrittlement are also summarized.
Cryogenic rocket engines report
Cryogenic rocket engines use cryogenic fuels like liquid oxygen and liquid hydrogen that must be stored at very low temperatures to remain in liquid form. The document discusses the history and development of cryogenic rocket engines. It provides details on the major components of cryogenic engines like the combustion chamber, fuel injector, and turbo pumps. It also explains the different cycles used in cryogenic engines like gas generator and staged combustion. The combustion process in the thrust chamber involves rapid mixing and vaporization of the cryogenic fuels.
Cryogenic Rocket Engine
The document discusses cryogenic rocket engines. It begins with definitions of cryogenics and describes how cryogenic rocket engines use liquid oxygen and liquid hydrogen propellants at extremely low temperatures. It then covers the history, principles, major components like the combustion chamber and nozzle, operation, advantages like high energy density, and drawbacks such as boil off rates of cryogenic rocket engines. In conclusion, it discusses how cryogenic rocket engines are promising for future space exploration due to their high performance.
PRESENTATION ON CRYOGENIC ROCKET ENGINE
This document provides information about a seminar on cryogenic rocket engines presented by Jaison Cyril. It discusses what cryogenics is, provides a history of cryogenic rocket engines including the RL10 engine, describes the construction and working principle of cryogenic engines including different power cycles, lists applications and advantages and disadvantages of cryogenic engines. It also summarizes the four phases of combustion in the thrust chamber and discusses potential next generation rocket engines.
Cryogenic rocket engine
Cryogenics is the study of materials at very low temperatures below -150°C. Cryogenic rocket engines use cryogenic fuels like liquid oxygen and liquid hydrogen that must be stored at extremely cold temperatures to remain liquid. The first country to use a cryogenic engine was the USA in 1963, while Russia developed its own in 1983. India has successfully developed its own cryogenic upper stage powered by the CE-7.5 cryogenic engine. Cryogenic engines offer very high energy density and clean, economical propellants but also present challenges related to storage and handling of the cryogenic liquids.
Cryogenic rocket engine
Cryogenic rocket engines use cryogenic fuels such as liquid hydrogen and liquid oxygen that are stored at very low temperatures. They provide several advantages including high energy density and producing only water exhaust, but also have challenges like boil off and leakage due to the extreme cold temperatures required. India's first unmanned lunar mission in 2008 failed when the indigenous cryogenic upper stage engine did not ignite as planned. Future rocket technologies being researched include ion engines, nuclear thermal engines, and other alternatives to further space exploration.
Recommended
cryogenic engine ppt by santosh
This document provides an overview of cryogenic rocket engines. It discusses that cryogenic fuels require storage at extremely low temperatures to remain liquid, and the most widely used combination is liquid hydrogen and liquid oxygen. The major components of cryogenic rocket engines are described, including the combustion chamber, injectors, pumps, valves and tanks. Advantages are high energy density and clean, non-toxic exhaust, while challenges include difficulties storing cryogenic liquids for long periods. Common applications are in rockets utilizing these high-performance fuels.
Cryogenic engineering ppt
Cryogenics is the study of production and behavior of materials at very low temperatures below -150°C. Some important cryogenic fluids include liquid hydrogen, helium, oxygen, nitrogen and air. Key applications of cryogenics include rocket propulsion, magnetic resonance imaging, superconductivity, frozen food storage and more. Cryogenic technology enables efficient rocket engines using liquid hydrogen and oxygen propellants. India has developed its own cryogenic engine GSLV Mk III to launch satellites using this technology. Future prospects include more efficient ion engines and alternative nuclear or solar thermal rocket concepts.
Cryogenics
Cryogenics is the study of very low temperatures, including temperatures below -150°C that can be attained using cryogenic liquids like liquid nitrogen and liquid helium stored in Dewar flasks. Some key applications of cryogenics discussed include cryogenic rocket engines, which provide high energy per unit mass and were pioneered by the US and India. Cryogenic grinding is also discussed as an application, which avoids problems with heat generation, tool wear, and oxidation seen in conventional grinding. Both advantages like lower grinding costs and finer particle sizes, and disadvantages like high operating costs are reviewed. Health hazards associated with cryogenic liquids like frostbite and cold embrittlement are also summarized.
Cryogenic rocket engines report
Cryogenic rocket engines use cryogenic fuels like liquid oxygen and liquid hydrogen that must be stored at very low temperatures to remain in liquid form. The document discusses the history and development of cryogenic rocket engines. It provides details on the major components of cryogenic engines like the combustion chamber, fuel injector, and turbo pumps. It also explains the different cycles used in cryogenic engines like gas generator and staged combustion. The combustion process in the thrust chamber involves rapid mixing and vaporization of the cryogenic fuels.
Cryogenic Rocket Engine
The document discusses cryogenic rocket engines. It begins with definitions of cryogenics and describes how cryogenic rocket engines use liquid oxygen and liquid hydrogen propellants at extremely low temperatures. It then covers the history, principles, major components like the combustion chamber and nozzle, operation, advantages like high energy density, and drawbacks such as boil off rates of cryogenic rocket engines. In conclusion, it discusses how cryogenic rocket engines are promising for future space exploration due to their high performance.
PRESENTATION ON CRYOGENIC ROCKET ENGINE
This document provides information about a seminar on cryogenic rocket engines presented by Jaison Cyril. It discusses what cryogenics is, provides a history of cryogenic rocket engines including the RL10 engine, describes the construction and working principle of cryogenic engines including different power cycles, lists applications and advantages and disadvantages of cryogenic engines. It also summarizes the four phases of combustion in the thrust chamber and discusses potential next generation rocket engines.
Cryogenic rocket engine
Cryogenics is the study of materials at very low temperatures below -150°C. Cryogenic rocket engines use cryogenic fuels like liquid oxygen and liquid hydrogen that must be stored at extremely cold temperatures to remain liquid. The first country to use a cryogenic engine was the USA in 1963, while Russia developed its own in 1983. India has successfully developed its own cryogenic upper stage powered by the CE-7.5 cryogenic engine. Cryogenic engines offer very high energy density and clean, economical propellants but also present challenges related to storage and handling of the cryogenic liquids.
Cryogenic rocket engine
Cryogenic rocket engines use cryogenic fuels such as liquid hydrogen and liquid oxygen that are stored at very low temperatures. They provide several advantages including high energy density and producing only water exhaust, but also have challenges like boil off and leakage due to the extreme cold temperatures required. India's first unmanned lunar mission in 2008 failed when the indigenous cryogenic upper stage engine did not ignite as planned. Future rocket technologies being researched include ion engines, nuclear thermal engines, and other alternatives to further space exploration.
CRYOGENIC ROCKET ENGINE
Cryogenic rocket engines use cryogenic fuels like liquid oxygen and liquid hydrogen that are stored at very low temperatures below -150°C. The United States first developed cryogenic rocket engines in 1963. Key components include the combustion chamber, injectors, turbo pumps, and nozzle. Cryogenic engines offer high energy density but present challenges like leakage and embrittlement. India successfully launched its first indigenous cryogenic upper stage in 2014. Future engine technologies being researched include ion engines and nuclear thermal rockets.
Cryogenic technology best ppt
Cryogenic technology involves producing and studying materials and behaviors at very low temperatures below -150°C. It has various applications including rocket engines, power transmission, food storage, medical uses, sensors, and electronics. The presenter discusses the history and development of cryogenic technology, applications like its use in rocket engines, advantages like high energy density, limitations like low temperatures and leakages, and the future prospects of this field. India has independently developed cryogenic engine technology after initial difficulties in obtaining it from Russia in the 1990s.
Cryogenic Technology
cryogenic technology linked with power electronic
performance characteristics of semiconductors at cryogenic temperature
Cryogenic rocket engine
Cryogenic rocket engines use liquid oxygen and liquid hydrogen propellants that are stored at extremely low cryogenic temperatures. They provide several advantages like high energy density and clean, non-toxic exhaust but also have challenges like boil off rates and leakage of the reactive cryogenic fuels. The document traces the history of cryogenic engines from early US and Soviet designs to current engines used by various countries. It describes the key components and working of cryogenic engines and concludes by discussing future engine technologies still under development.
Spacecraft Propulsion
This seminar gives idea about spacecraft propulsion i.e., actually what are different latest modes of propulsion are used in space agency and also the introduction of combustion of propellants.
CRYOGENICS BASICS
This document discusses cryogenics and its applications. Cryogenics involves producing and studying very low temperatures, from around -100°C to absolute zero. Common cryogenic liquids used are liquid nitrogen and helium. Liquid nitrogen condenses around -196°C and freezes at -210°C, while liquid helium boils at -269°C and does not freeze at atmospheric pressure. Cryogenic technology is used in rocket propulsion systems, medical cryosurgery, manufacturing, electronics, and fuel research. Some key applications include aerospace cryogenic engines, medical cryosurgery, frozen food transportation, and blood banking.
Cryogenics and its Basic knowledge
This presentation deals with the basic knowledge and easy concept of cryogenics that can help to bring up your basic knowledge about cryogenics.
This basically contains the history and applications of cryogenic technology.
Thermo acoustic refrigeration
Thermo Acoustic refrigeration is a phenomenon that uses high intensity sound waves in a pressurized gas tube to pump heat from one place to other to produce refrigeration effect. This system completely eliminates the need for lubricants and results in 40% less energy consumption.
CRYOGENIC ROCKET ENGINE
This document discusses cryogenic rocket engines (CRE). It begins by defining cryogenics as the study of operations and behaviors of materials at temperatures below -150°C. It then discusses that CRE use cryogenic liquid propellants like liquid oxygen and liquid hydrogen, which must be stored at extremely low temperatures. The document outlines the various CRE developed around the world by countries like the US, Japan, France, China, Russia. It also discusses the challenges in developing CRE and India's indigenous developments like the CE7.5 and CE20 engines.
rocket propellent ppt
This document discusses different types of rocket propulsion systems. It describes solid, liquid, gas, and hybrid rocket propellants. Solid propellant rockets have the fuel and oxidizer pre-mixed and stored in the rocket casing. Liquid propellant rockets store the fuel and oxidizer separately and pump them into the combustion chamber. Hybrid rockets combine aspects of solid and liquid rockets. The document also discusses factors to consider when selecting rocket fuels such as physical properties, performance, economic factors, and health and safety issues.
Cryogenic insulations
Cryogenic insulations are needed to minimize heat transfer into storage tanks and transfer lines for cryogenic liquids. There are several types of insulation classified based on cost, weight, ease of application, and thermal conductivity. Expanded foams, gas-filled powders, and fiber materials provide insulation through a cellular or porous structure that reduces conduction and convection. Vacuum, evacuated, and opacified powder insulations further reduce conduction and radiation by removing gases. Multilayer insulation uses alternating conductive and non-conductive layers under vacuum to maximize reflection of radiation for optimal heat transfer prevention. The type used depends on the insulation needs and limitations of the specific cryogenic system.
Nanotechnology as Energy Source
The document discusses various applications of nanotechnology in renewable energy and energy storage. It describes how nanomaterials and structures can be used to improve solar cells, batteries, fuel cells, hydrogen production and storage, and enhance the efficiency of technologies like wind turbines. For example, it mentions that nanoparticles or nanowires in solar cell electrodes can increase surface area and improve energy capture. Nanotechnology also aims to develop cheaper catalysts and better electrolyte materials to advance fuel cells.
Nuclear power plants
The document discusses nuclear fuels used in nuclear power plants such as uranium-235 and plutonium-239, how nuclear fission produces energy through a self-sustaining chain reaction, and the key components of nuclear reactors including the reactor core, control rods, moderator, coolant, and safety measures. It also covers different types of nuclear reactors like pressurized water reactors and boiling water reactors, as well as waste disposal and the future prospects of nuclear power.
Cyogenic rocket engine report
This document provides an introduction and overview of cryogenic rocket engines. It discusses the history of cryogenics and rocket propulsion. Some key points include:
- Cryogenic rocket engines use cryogenic (very cold) liquid fuels that must be kept cold to remain in liquid form, like liquid oxygen and liquid hydrogen.
- The Space Shuttle used cryogenic fuel in its main engines. Only a few countries have mastered cryogenic rocket technology.
- Cryogenic engines provide high performance but require heavy insulation for fuel storage. They are more complex than non-cryogenic designs.
- The document outlines the major components and operating cycles of cryogenic rocket engines. It also discusses the combustion process and fuel injection methods
Fast breeder reactor
A fast breeder reactor uses both fission and nuclear reactions to generate energy. Uranium-238 absorbs neutrons and transforms into fissile plutonium-239, which is then used as fuel along with uranium dioxide. The core contains inner and outer parts - the inner uses mixed uranium/plutonium dioxide for fission, while the outer converts U-238 to Pu-239. Liquid sodium is used as a coolant instead of water. Heat is transferred between primary, secondary, and steam loops for safety.
Ramjet
The document discusses the principles and operation of ramjet engines. A ramjet relies on forward air compression through the engine intake to generate thrust, requiring high-speed flight. It has no moving parts for compression. Air entering the intake is slowed in a supersonic diffuser, then combustion and expansion in the engine accelerates the exhaust faster than inlet air to produce thrust. The HyFly program demonstrated a dual-combustion ramjet concept for hypersonic cruise flight at Mach 6 with a liquid hydrocarbon fuel. While ramjets have low drag and can operate at high pressures and temperatures, they also have limitations such as altitude restrictions and lower efficiency compared to engines with mechanical compression like turbojets.
Hydrogen as a fuel in future
The document is a presentation on hydrogen as a future fuel. It was presented by five MBA students to a professor. The presentation discusses hydrogen's history and development as a fuel worldwide and in India. It describes various methods of hydrogen production and storage. The presentation outlines government policies and initiatives in India to promote hydrogen use and provides an overview of research projects. It discusses benefits and challenges of hydrogen as a fuel and highlights applications. The conclusion is that hydrogen could be the fuel of the future with increased focus on extraction technologies and storage solutions.
Hydrogen Fuel Cell Technology
a brief intro to the technology and working of hydrogen fuel cells.It also discusses the types of fuel cells available in the market and the economy of hydrogen fuel cells.It concludes by giving suitable examples of fuel cell vehicles and a short video animation to properly understand the topic
Hydrogen storage
This document discusses various methods for hydrogen storage, including compression, liquefaction, physisorption, metallic hydrides, and complex hydrides. Physisorption through cryoadsorption of hydrogen onto activated carbon at 77K provides a gravimetric density of 10.8% and volumetric density of 41 kg/m3, making it economically competitive. Metallic hydrides like LaNi5H6 provide high volumetric densities but lower gravimetric densities of less than 3%. Complex hydrides show the highest densities but challenges with hydrogen release dynamics.
Unit i introduction to Cryogenics
This document provides an introduction to cryogenics. It defines cryogenics as the science of producing low temperatures, below -150°C or 123 K. Cryogenics encompasses liquids such as nitrogen, oxygen, argon, hydrogen and helium. It has applications in fields like space studies, metallurgy, electronics, medicine and more. The document then reviews the history of cryogenics, including important discoveries and developments. It also provides details on common cryogenic fluids, their properties and typical applications.
Application of cryogenics.ppt
This document discusses various applications of cryogenics including rocket propulsion, particle accelerators, space simulation chambers, high vacuum cryopumping, nuclear fusion reactors, mechanical design uses like superconducting bearings and motors, biological and medical uses such as cryosurgery and blood preservation, food processing and preservation, manufacturing processes, MRI scanners, and rubber recycling and tire disposal.
cryogenic rocket engine
This document discusses cryogenic rocket engines. It begins with an introduction to cryogenics and cryogenic fuels that can be used for rocket engines. It then discusses the history of rocketry development by Russia and the US. Current rockets use liquid-fueled cryogenic engines, with the first being the RL10 in the 1960s. Cryogenic engines use supercooled liquid fuels like liquid oxygen and hydrogen that provide high energy density. Key components include the combustion chamber, injectors, pumps, valves and tanks. Cryogenic fuels allow for compact fuel storage on rockets. While powerful, cryogenic engines also present challenges like leakage and embrittlement issues. In conclusion, cryogenic rocketry is important for space exploration due to
More Related Content
What's hot
CRYOGENIC ROCKET ENGINE
Cryogenic rocket engines use cryogenic fuels like liquid oxygen and liquid hydrogen that are stored at very low temperatures below -150°C. The United States first developed cryogenic rocket engines in 1963. Key components include the combustion chamber, injectors, turbo pumps, and nozzle. Cryogenic engines offer high energy density but present challenges like leakage and embrittlement. India successfully launched its first indigenous cryogenic upper stage in 2014. Future engine technologies being researched include ion engines and nuclear thermal rockets.
Cryogenic technology best ppt
Cryogenic technology involves producing and studying materials and behaviors at very low temperatures below -150°C. It has various applications including rocket engines, power transmission, food storage, medical uses, sensors, and electronics. The presenter discusses the history and development of cryogenic technology, applications like its use in rocket engines, advantages like high energy density, limitations like low temperatures and leakages, and the future prospects of this field. India has independently developed cryogenic engine technology after initial difficulties in obtaining it from Russia in the 1990s.
Cryogenic Technology
cryogenic technology linked with power electronic
performance characteristics of semiconductors at cryogenic temperature
Cryogenic rocket engine
Cryogenic rocket engines use liquid oxygen and liquid hydrogen propellants that are stored at extremely low cryogenic temperatures. They provide several advantages like high energy density and clean, non-toxic exhaust but also have challenges like boil off rates and leakage of the reactive cryogenic fuels. The document traces the history of cryogenic engines from early US and Soviet designs to current engines used by various countries. It describes the key components and working of cryogenic engines and concludes by discussing future engine technologies still under development.
Spacecraft Propulsion
This seminar gives idea about spacecraft propulsion i.e., actually what are different latest modes of propulsion are used in space agency and also the introduction of combustion of propellants.
CRYOGENICS BASICS
This document discusses cryogenics and its applications. Cryogenics involves producing and studying very low temperatures, from around -100°C to absolute zero. Common cryogenic liquids used are liquid nitrogen and helium. Liquid nitrogen condenses around -196°C and freezes at -210°C, while liquid helium boils at -269°C and does not freeze at atmospheric pressure. Cryogenic technology is used in rocket propulsion systems, medical cryosurgery, manufacturing, electronics, and fuel research. Some key applications include aerospace cryogenic engines, medical cryosurgery, frozen food transportation, and blood banking.
Cryogenics and its Basic knowledge
This presentation deals with the basic knowledge and easy concept of cryogenics that can help to bring up your basic knowledge about cryogenics.
This basically contains the history and applications of cryogenic technology.
Thermo acoustic refrigeration
Thermo Acoustic refrigeration is a phenomenon that uses high intensity sound waves in a pressurized gas tube to pump heat from one place to other to produce refrigeration effect. This system completely eliminates the need for lubricants and results in 40% less energy consumption.
CRYOGENIC ROCKET ENGINE
This document discusses cryogenic rocket engines (CRE). It begins by defining cryogenics as the study of operations and behaviors of materials at temperatures below -150°C. It then discusses that CRE use cryogenic liquid propellants like liquid oxygen and liquid hydrogen, which must be stored at extremely low temperatures. The document outlines the various CRE developed around the world by countries like the US, Japan, France, China, Russia. It also discusses the challenges in developing CRE and India's indigenous developments like the CE7.5 and CE20 engines.
rocket propellent ppt
This document discusses different types of rocket propulsion systems. It describes solid, liquid, gas, and hybrid rocket propellants. Solid propellant rockets have the fuel and oxidizer pre-mixed and stored in the rocket casing. Liquid propellant rockets store the fuel and oxidizer separately and pump them into the combustion chamber. Hybrid rockets combine aspects of solid and liquid rockets. The document also discusses factors to consider when selecting rocket fuels such as physical properties, performance, economic factors, and health and safety issues.
Cryogenic insulations
Cryogenic insulations are needed to minimize heat transfer into storage tanks and transfer lines for cryogenic liquids. There are several types of insulation classified based on cost, weight, ease of application, and thermal conductivity. Expanded foams, gas-filled powders, and fiber materials provide insulation through a cellular or porous structure that reduces conduction and convection. Vacuum, evacuated, and opacified powder insulations further reduce conduction and radiation by removing gases. Multilayer insulation uses alternating conductive and non-conductive layers under vacuum to maximize reflection of radiation for optimal heat transfer prevention. The type used depends on the insulation needs and limitations of the specific cryogenic system.
Nanotechnology as Energy Source
The document discusses various applications of nanotechnology in renewable energy and energy storage. It describes how nanomaterials and structures can be used to improve solar cells, batteries, fuel cells, hydrogen production and storage, and enhance the efficiency of technologies like wind turbines. For example, it mentions that nanoparticles or nanowires in solar cell electrodes can increase surface area and improve energy capture. Nanotechnology also aims to develop cheaper catalysts and better electrolyte materials to advance fuel cells.
Nuclear power plants
The document discusses nuclear fuels used in nuclear power plants such as uranium-235 and plutonium-239, how nuclear fission produces energy through a self-sustaining chain reaction, and the key components of nuclear reactors including the reactor core, control rods, moderator, coolant, and safety measures. It also covers different types of nuclear reactors like pressurized water reactors and boiling water reactors, as well as waste disposal and the future prospects of nuclear power.
Cyogenic rocket engine report
This document provides an introduction and overview of cryogenic rocket engines. It discusses the history of cryogenics and rocket propulsion. Some key points include:
- Cryogenic rocket engines use cryogenic (very cold) liquid fuels that must be kept cold to remain in liquid form, like liquid oxygen and liquid hydrogen.
- The Space Shuttle used cryogenic fuel in its main engines. Only a few countries have mastered cryogenic rocket technology.
- Cryogenic engines provide high performance but require heavy insulation for fuel storage. They are more complex than non-cryogenic designs.
- The document outlines the major components and operating cycles of cryogenic rocket engines. It also discusses the combustion process and fuel injection methods
Fast breeder reactor
A fast breeder reactor uses both fission and nuclear reactions to generate energy. Uranium-238 absorbs neutrons and transforms into fissile plutonium-239, which is then used as fuel along with uranium dioxide. The core contains inner and outer parts - the inner uses mixed uranium/plutonium dioxide for fission, while the outer converts U-238 to Pu-239. Liquid sodium is used as a coolant instead of water. Heat is transferred between primary, secondary, and steam loops for safety.
Ramjet
The document discusses the principles and operation of ramjet engines. A ramjet relies on forward air compression through the engine intake to generate thrust, requiring high-speed flight. It has no moving parts for compression. Air entering the intake is slowed in a supersonic diffuser, then combustion and expansion in the engine accelerates the exhaust faster than inlet air to produce thrust. The HyFly program demonstrated a dual-combustion ramjet concept for hypersonic cruise flight at Mach 6 with a liquid hydrocarbon fuel. While ramjets have low drag and can operate at high pressures and temperatures, they also have limitations such as altitude restrictions and lower efficiency compared to engines with mechanical compression like turbojets.
Hydrogen as a fuel in future
The document is a presentation on hydrogen as a future fuel. It was presented by five MBA students to a professor. The presentation discusses hydrogen's history and development as a fuel worldwide and in India. It describes various methods of hydrogen production and storage. The presentation outlines government policies and initiatives in India to promote hydrogen use and provides an overview of research projects. It discusses benefits and challenges of hydrogen as a fuel and highlights applications. The conclusion is that hydrogen could be the fuel of the future with increased focus on extraction technologies and storage solutions.
Hydrogen Fuel Cell Technology
a brief intro to the technology and working of hydrogen fuel cells.It also discusses the types of fuel cells available in the market and the economy of hydrogen fuel cells.It concludes by giving suitable examples of fuel cell vehicles and a short video animation to properly understand the topic
Hydrogen storage
This document discusses various methods for hydrogen storage, including compression, liquefaction, physisorption, metallic hydrides, and complex hydrides. Physisorption through cryoadsorption of hydrogen onto activated carbon at 77K provides a gravimetric density of 10.8% and volumetric density of 41 kg/m3, making it economically competitive. Metallic hydrides like LaNi5H6 provide high volumetric densities but lower gravimetric densities of less than 3%. Complex hydrides show the highest densities but challenges with hydrogen release dynamics.
Unit i introduction to Cryogenics
This document provides an introduction to cryogenics. It defines cryogenics as the science of producing low temperatures, below -150°C or 123 K. Cryogenics encompasses liquids such as nitrogen, oxygen, argon, hydrogen and helium. It has applications in fields like space studies, metallurgy, electronics, medicine and more. The document then reviews the history of cryogenics, including important discoveries and developments. It also provides details on common cryogenic fluids, their properties and typical applications.
What's hot (20)
Viewers also liked
Application of cryogenics.ppt
This document discusses various applications of cryogenics including rocket propulsion, particle accelerators, space simulation chambers, high vacuum cryopumping, nuclear fusion reactors, mechanical design uses like superconducting bearings and motors, biological and medical uses such as cryosurgery and blood preservation, food processing and preservation, manufacturing processes, MRI scanners, and rubber recycling and tire disposal.
cryogenic rocket engine
This document discusses cryogenic rocket engines. It begins with an introduction to cryogenics and cryogenic fuels that can be used for rocket engines. It then discusses the history of rocketry development by Russia and the US. Current rockets use liquid-fueled cryogenic engines, with the first being the RL10 in the 1960s. Cryogenic engines use supercooled liquid fuels like liquid oxygen and hydrogen that provide high energy density. Key components include the combustion chamber, injectors, pumps, valves and tanks. Cryogenic fuels allow for compact fuel storage on rockets. While powerful, cryogenic engines also present challenges like leakage and embrittlement issues. In conclusion, cryogenic rocketry is important for space exploration due to
Cryogenic rocket engine
Cryogenic rocket engines use cryogenic (very cold) liquid fuels like liquid hydrogen and liquid oxygen that are stored at extremely low temperatures. They provide several advantages like high energy density and clean, non-polluting exhaust but also have challenges like boil-off losses and material compatibility issues. The document outlines the history, construction, power cycles like gas-generator and pressure-fed, combustion process in the thrust chamber, and advantages and disadvantages of cryogenic rocket engines.
Cryogenics and its space applications
Cryogenics and its applications in space were discussed. Liquid helium and nitrogen are commonly used cryogenic liquids that are stored in Dewars. An Adiabatic Demagnetization Refrigerator (ADR) can attain temperatures below liquid helium by using a magnetocaloric material to absorb and release heat with changing magnetic fields. The X-Ray Spectrometer instrument uses a complex cryogenic system including liquid helium, a mechanical cooler, and an ADR to cool its detectors to ultra-low temperatures needed to minimize noise.
Presentation1
Cryogenic grinding technology uses very low temperatures to grind materials. Liquid nitrogen is used to freeze materials, making them more brittle and easier to grind into very fine powders. This technique allows for producing powders that traditional high-temperature grinding cannot achieve.
cryogenic grinding
This document discusses cryogenic grinding technology. It begins with introducing cryogenics and explaining the problems with conventional grinding such as heat generation and oxidation. It then describes how cryogenic grinding works by cooling materials below their embrittlement temperature using liquid nitrogen before grinding them, resulting in brittle fracture. The key components of a cryogenic grinder and its working principle are outlined. Performance data shows cryogenic grinding can achieve a final fineness of 5 micrometers using less energy. Several applications of cryogenic grinding in industries like steel machining, plastics, adhesives, and spices are provided. The merits include increased throughput and finer particles while the demerits include high operation and maintenance costs.
Cryogenics
Cryogenics is the study of very low temperatures below -150°C and how materials behave at those temperatures. During World War II, scientists found that metals frozen to low temperatures showed more resistance to wear. A Dewar flask provides very good thermal insulation and is commonly used to store liquid nitrogen in laboratories. Liquid nitrogen boils at -196°C and is useful for many applications. Liquid helium exists only at 4K and is used to produce superconducting magnets. A superfluid has no viscosity and infinite thermal conductivity, allowing it to flow uncontrollably. MRI machines and electric power transmission use cryogenics.
Cryogenic grinding{renew}
The document discusses cryogenic grinding technology. Cryogenic grinding involves cooling materials below their embrittlement temperature using liquid nitrogen before grinding them, allowing for grinding of hard, brittle, soft, elastic, and fibrous materials. It describes the working principle of cryogenic grinding, which involves spraying liquid nitrogen on materials as they are conveyed into an impact mill. Cryogenic grinding offers benefits like increased throughput, finer particle sizes, and lower grinding costs compared to conventional grinding. The document provides example applications of cryogenic grinding in industries like steel machining, plastics processing, adhesives production, explosives processing, and spices grinding.
cryogenic grinding pdf
This document is a seminar report on cryogenic grinding submitted by Himanshu Tiwari to fulfill requirements for a Bachelor of Technology degree. Cryogenic grinding uses very low temperatures produced by liquid nitrogen to embrittle materials, making them easier to grind into smaller particles. Experimental studies showed cryogenic grinding of herbs resulted in 15.6% average increase in active constituents compared to normal grinding methods. Cryogenic grinding has applications in processing materials like steel, plastics, adhesives, spices and explosives due to advantages like reduced wear on equipment and ability to grind difficult composite materials.
Cryogenic hardening
Cryogenic hardening is a heat treatment process where metal is cooled to approximately -185°C. The process involves austenitizing the metal by heating it, quenching it to form martensite, and then cryogenically treating it at very low temperatures. This results in metallurgical changes like the transformation of retained austenite to martensite and the precipitation of fine carbides. Cryogenic hardening improves properties like wear resistance, reduces stresses, and increases part life. It is used to treat items like gun barrels, cutting tools, dental/surgical instruments, and engine parts.
Cryogenic air separation plant design
This document describes the design of a plant for cryogenic distillation of air into oxygen and nitrogen. It includes an introduction to air separation and the cryogenic process. Process equipment like compressors, heat exchangers, and distillation columns are designed. Mass and energy balances are performed. The distillation columns and condenser are designed and specifications are provided. An economic analysis includes capital costs, production costs, profitability metrics, payback period and safety considerations. References for design methods are also listed.
Cryogenic grinding
Cryogenic grinding in food is a very new technique. It has a vast advantages over the conventional grinding process. This presentation contents a brief introduction about conventional grinding, different types of grinders and problems of conventional grinders. Its also describe a brief introduction about cryogenic grinding, its components, uses and various advantages.
Cryonics
The document discusses how cryonics uses extremely cold temperatures to preserve humans who can no longer be supported by medicine in hopes of future revival. Cryonics involves placing patients in containers immersed in liquid nitrogen at -196 degrees Celsius to preserve the body at a cellular level until nanotechnology is advanced enough to potentially repair any damage and restore health. The oldest cryonics patient currently preserved is from 1967, demonstrating the long-term goal of reanimation once preservation can be reversed.
Report on cryogenic heat treatment
This document discusses cryogenic heat treatment of metals. It provides background on the history of cryogenics beginning in the late 1800s. It then discusses the process of cryogenic treatment, which involves cooling metals to below -190°C to improve properties like wear resistance, corrosion resistance, and reducing residual stresses. The effects of cryogenic treatment are explained, including transforming retained austenite to martensite and precipitating carbides to enhance properties.
cryogenic treatment of metals
Cryogenic treatment is a process that involves cooling materials like steel to very low cryogenic temperatures, typically between -150 to -300°C, to improve properties. There are two main types: shallow cryogenic treatment cools just the surface, while deep cryogenic treatment cools the entire cross-section. The cryogenic process modifies the material's microstructure and properties. Some benefits of cryogenic treatment for steels include improved wear resistance, hardness, and fatigue strength of cutting tools, dies, and other industrial parts. It can extend the lifetime of tooling and reduce manufacturing costs. Cryogenic treatment uses liquid nitrogen or helium stored in vacuum-insulated containers called Dewars to achieve very low temperatures needed.
Cryogenic technology best ppt
Cryogenic technology involves producing and studying materials and behaviors at very low temperatures below -150°C. It has various applications including in rocket engines. The presenter discusses the history of cryogenic technology, its applications in areas like rocket propulsion, electricity transmission, food storage, and healthcare. Challenges in developing cryogenic engines for India are described. Advantages include high energy density but limitations include complex storage and leakage issues. Future developments may include ion engines and alternative propulsion methods.
cryonics
Cryonics is the practice of preserving humans in extremely cold temperatures after death in hopes that future medical advances may allow them to be revived. The document discusses the history and process of cryonics, including the first person cryogenically frozen in 1967. Cryonic supporters believe that vitrification can preserve biological structures and nanotechnology may allow for molecular repair and regeneration of tissues. However, critics argue that cryonics companies are scamming customers by promising immortality that cannot be delivered with current science. Some experts predict the first cryonic revival may occur around 2040 if repair methods can be developed.
Cryonic presentation-powerpoint
This document discusses cryonics and "suspended animation" as a potential way to achieve immortality. It outlines the cryonics process, which involves freezing a body at very low temperatures to preserve it indefinitely until future medical advances allow revival. However, there are risks like cell damage from freezing and thawing. New techniques using slow freezing and cryoprotectants aim to reduce these risks. While freezing small tissues and cells has been done, reviving whole frozen humans has not yet been achieved. Some people pay over $125,000 for full-body cryonic freezing in hopes that the technology will advance to the point where they can be revived in the future.
Cryogenic rocket engine
its about cryogenic fluids and how they can be used in rocket and get higher efficiency than the conventional fuel
CRYOGENIC ROCKET ENGINE
This document provides information about cryogenic rocket engines. It discusses that cryogenic rocket engines use cryogenic fuels like liquid oxygen and liquid hydrogen that are stored at very low temperatures. The key components of cryogenic engines include thrust chambers, turbo pumps, gas generators and cryogenic valves. The document explains that cryogenic engines generate thrust via the combustion of cryogenic fuels in the thrust chamber, which accelerates the exhaust gases through a converging-diverging nozzle. It also provides details about the working, advantages and disadvantages of cryogenic rocket propulsion technology.
Viewers also liked (20)
Similar to Cryogenic technology
Cryogenic rocket-engine
Cryogenic rocket engines use liquid oxygen and hydrogen propellants which offer the highest energy efficiency for rockets requiring large thrust. The United States first developed these engines in the 1960s, while the Soviet Union did not succeed until 1987. India sought to import cryogenic engine technology in the 1990s but faced sanctions from the US and later Russia backed out of the deal. As a result, ISRO had to indigenously develop the technology which took 16 years to achieve success with the GSLV launch in 2010. Cryogenic engines provide clean, economical propulsion but also technical challenges like boil off and leakage of the extremely cold and reactive propellants.
A Review on Cryogenic Rocket Engine
1. Cryogenic rocket engines use liquid hydrogen at -253°C and liquid oxygen at -183°C as propellants, which must be kept at extremely low cryogenic temperatures to remain liquid.
2. These engines provide the highest efficiency of any rocket engine and have been used to launch many satellites.
3. Development of cryogenic engine technology started in the 1960s by countries including the US, Russia, Japan, France, and later India. Perfection of the technology proved challenging and took decades to master.
Cryocar by PUNEET GAONKAR
Cryogens are effective thermal storage media which, when used for automotive purposes, offer significant advantages over current and proposed electrochemical battery technologies, both in performance and economy. An automotive propulsion concept is presented which utilizes liquid nitrogen as the working fluid for an open Rankine cycle. Nitrogen propulsive systems can provide automotive ranges of nearly 400 kilometers in the zero emission mode, with lower operating costs than those of the electric vehicles currently being considered for mass production. Some of the advantages of a transportation infrastructure based on liquid nitrogen are that recharging the energy storage system only requires minutes and there are minimal environmental hazards associated with the manufacture and utilization of the cryogenic "fuel."
cryogenic .pptx
Cryogenic technology involves producing and working with extremely low temperatures below -150°C. It is used for rocket propellants like liquid oxygen and hydrogen, which must be kept cold to remain liquid and offer high energy efficiency for rocket engines. The United States developed the first cryogenic rocket engines in the 1960s. Cryogenic engines work by partially burning hydrogen with oxygen in a gas generator to power turbo pumps, then fully combusting the propellants in the thrust chamber to generate temperatures over 3,000°C and produce thrust by accelerating the propellants out of the nozzle. While cryogenic fuels provide high energy density and reduce fuel needs, their tanks require heavy insulation and the fuels tend to be bulky. Going forward, cry
Cryogenic rocketengine
Cryogenic rocket engines use liquid oxygen and liquid hydrogen propellants, which are cooled to extremely low temperatures below their freezing points. This allows them to be stored densely in rocket fuel tanks. The first operational cryogenic engine was developed by NASA in 1961. Cryogenic engines work by pumping the liquid propellants into a combustion chamber where they ignite and expand, producing thrust through a nozzle. They offer high energy efficiency but also technical challenges due to boil off and leakage risks at very low temperatures. Future rocket technologies may use alternative propulsion methods like ion engines or nuclear thermal rockets.
3 "AIR POWERED CAR" BY SAINATH GANGADHAR PASHAWAR (BE INSTRUMENTATION)
The document provides an introduction to compressed air vehicles and air cars. It discusses the history of compressed air technology dating back to the late 19th century when the first pneumatic locomotives were developed. It then describes Tata Motors' plans to introduce the MiniCAT, the world's first commercial air-powered vehicle, in India by 2012. The MiniCAT would be powered by compressed air stored in carbon fiber tanks at high pressure and cost around $8,177. It would have a range of 300km between refuels and refueling would cost approximately $2. The document then discusses the basic working principles of compressed air technology and air cars, which use compressed air expanded through pistons to power the vehicle.
Cryocar 2
This document summarizes a seminar presentation on cryogenic vehicles (cryocars) that use liquid nitrogen as fuel. It describes how liquid nitrogen is produced, the basic parts and operation of a liquid nitrogen propulsion system, including a cryogen storage vessel, pump, economizer, heat exchanger and expander engine. The document discusses the improved efficiency of newer cryocars compared to early models and notes advantages over electric and fossil-fueled vehicles, while also outlining technical issues that have prevented commercialization, such as safety concerns and the energy required to produce liquid nitrogen.
CRYOGENIC ROCKET ENGINE ankur
This document summarizes a seminar report on cryogenic rocket engines. It discusses how cryogenic rocket engines use liquid oxygen and hydrogen as fuel and oxidizer, which burn cleaner than hydrocarbon fuels. The report provides background on cryogenic technology, the history of cryogenic rocket engine development in the US and other countries in the 1960s. It describes the construction and working of cryogenic rocket engines, including components like the gas generator, turbo pumps, and thrust chamber. The report notes advantages of cryogenic fuels in providing high energy per unit mass and being clean-burning.
Cryogenic rocket engine.pptx
Cryogenic rocket engines use cryogenic fuels such as liquid hydrogen and liquid oxygen that must be stored at extremely low temperatures to remain liquid. They work by accelerating these cryogenic propellants to high speeds through combustion in the thrust chamber and expansion through a nozzle to produce thrust according to Newton's third law of motion. Some key cryogenic rocket engines include the RL-10, CE 7.5, and CE-20. Cryogenic engines offer high energy density and clean, economical propellants but also present challenges like boil-off, reactivity, and leakage of the cryogenic fuels.
Cryocar
The document summarizes a seminar presentation on liquid nitrogen vehicles (LNVCs). It discusses that LNVC use liquid nitrogen as a fuel, which is pressurized and vaporized to power the vehicle. The document outlines the key parts of an LNVC including the cryogen storage vessel, pump, economizer, heat exchanger, and expander. It also discusses the operation, efficiency, advantages over electric vehicles, and challenges preventing commercialization like safety and funding issues.
M1303028391
This document summarizes a study on reducing carbon dioxide emissions from diesel passenger vehicles using an activated alumina capturing method. The researchers designed and modeled a catalytic converter reactor chamber containing activated alumina balls to absorb CO2 from exhaust gases. Computational fluid dynamics analysis was used to validate the design, showing it achieved the targeted pressure drop and flow uniformity. The reactor chamber was fabricated and experiments were conducted on a Volkswagen diesel vehicle. Initial results found an 11.6% reduction in CO2 emissions through the capturing method using activated alumina catalyst in the optimized reactor chamber design.
Liquid-Nitrogen-as-a-Non-Polluting-Fuel.pptx
- The University of North Texas and University of Washington independently developed liquid nitrogen powered vehicles in 1997.
- The vehicle was named LN2000 and was a converted 1984 Grumman-Olson Kubvan mail delivery van.
- Liquid nitrogen is used as the fuel in a cryogenic heat engine. It is non-polluting and nitrogen is abundantly available in air.
- However, liquid nitrogen vehicles have not been commercialized due to safety issues and lack of funds for further research.
Cryocar(1)
This document summarizes a proposed vehicle called the Cryocar that is powered by liquid nitrogen. The Cryocar works similarly to a steam engine by pressurizing and vaporizing liquid nitrogen using ambient heat, which expands to drive the vehicle. It has zero emissions and refueling takes only a few minutes. However, issues around safety from nitrogen leaks and the energy required to liquefy nitrogen have prevented commercialization. The document outlines the components, working principle, advantages over electric vehicles, drawbacks, and potential solutions of the Cryocar concept.
Presentation on Air Powered Vehicle
We know that our world is facing fuel crisis nowadays. All kind of conventional source of fuel is on the verge of exhaustion. We are confident that AIR POWERED TECHNOLOGY holds the key to the automobile’s future.
Cryogenic rocket engine
This presentation will show you some what about Cryogenic Rocket Engine and also their concept and different type of cryogenic engines and combination developed by different countries and one more thing is that all the details in this presentation are based on source available in the wikipedia and in other web sources.
Thank you
Shaik hussain abbas technical seminar ppt
This document summarizes a technical seminar on hydrogen fuel cell vehicles. It defines hydrogen and describes its chemical properties and history of use as a fuel. It then explains how hydrogen fuel cells work to power vehicles, discusses various fuel cell types and hydrogen storage methods. The document outlines the infrastructure needed to support hydrogen vehicles and lists some current applications. It also provides advantages like clean emissions but notes challenges like high production costs and flammability risks.
Crogenic rocket engine
Cryogenics is the study of low temperatures and the production of low temperatures using liquefied gases like liquid nitrogen and liquid helium. Liquid rocket engines that use cryogenic fuels like liquid hydrogen and liquid oxygen provide some of the highest performance but also require bulky cryogenic fuel tanks and heavy insulation. There are two main types of liquid rocket engines - pressure-fed engines which use tank pressure to pump propellants and are simpler but provide lower performance, and pump-fed engines which use turbopumps to provide higher pressures and performance but are more complex. Cryogenic engines have been used successfully in applications like space shuttles and rockets where high performance outweighs the challenges of storing cryogenic fuels.
currentnew-170214052606 (1).pdf
This document discusses liquid nitrogen (LN2) cryogenic cars as a potential pollution-free and renewable fuel source. It provides background on LN2, describing how it is produced through air liquefaction using turbo pumps and double column rectification. The document outlines the working principle of a cryogenic heat engine, which uses LN2 stored at -150°C as fuel. LN2 is pressurized, vaporized to drive an expander and engine, then exhausted as nitrogen gas. Advantages include no emissions, longer range than electric cars. However, challenges include lack of refueling infrastructure, high energy needs for LN2 production, and safety issues around nitrogen leaks. Further research is needed to address safety and funding shortages
Cryocar
The document presents information on Cryocar, a vehicle that uses liquid nitrogen as fuel. It discusses the history of liquid nitrogen propulsion research. The key components of a liquid nitrogen propulsion system are described including the cryogen storage vessel, pump, economizer, heat exchanger, and expander engine. The open Rankine power cycle is explained. Advantages include reduced emissions, but disadvantages include energy needed to liquefy nitrogen and potential safety issues if nitrogen leaks. The LN2000 vehicle developed at the University of Washington is provided as an example.
cryo car
dont think its a new technology,its an old tech.but i made it succesful by my presentation style.some slides are hidden and some some are linked..its a nice presentation
Similar to Cryogenic technology (20)
3 "AIR POWERED CAR" BY SAINATH GANGADHAR PASHAWAR (BE INSTRUMENTATION)
3 "AIR POWERED CAR" BY SAINATH GANGADHAR PASHAWAR (BE INSTRUMENTATION)
Recently uploaded
IEEE Aerospace and Electronic Systems Society as a Graduate Student Member
IEEE Aerospace and Electronic Systems Society as a Graduate Student Member
ACEP Magazine edition 4th launched on 05.06.2024
This document provides information about the third edition of the magazine "Sthapatya" published by the Association of Civil Engineers (Practicing) Aurangabad. It includes messages from current and past presidents of ACEP, memories and photos from past ACEP events, information on life time achievement awards given by ACEP, and a technical article on concrete maintenance, repairs and strengthening. The document highlights activities of ACEP and provides a technical educational article for members.
DEEP LEARNING FOR SMART GRID INTRUSION DETECTION: A HYBRID CNN-LSTM-BASED MODEL
As digital technology becomes more deeply embedded in power systems, protecting the communication
networks of Smart Grids (SG) has emerged as a critical concern. Distributed Network Protocol 3 (DNP3)
represents a multi-tiered application layer protocol extensively utilized in Supervisory Control and Data
Acquisition (SCADA)-based smart grids to facilitate real-time data gathering and control functionalities.
Robust Intrusion Detection Systems (IDS) are necessary for early threat detection and mitigation because
of the interconnection of these networks, which makes them vulnerable to a variety of cyberattacks. To
solve this issue, this paper develops a hybrid Deep Learning (DL) model specifically designed for intrusion
detection in smart grids. The proposed approach is a combination of the Convolutional Neural Network
(CNN) and the Long-Short-Term Memory algorithms (LSTM). We employed a recent intrusion detection
dataset (DNP3), which focuses on unauthorized commands and Denial of Service (DoS) cyberattacks, to
train and test our model. The results of our experiments show that our CNN-LSTM method is much better
at finding smart grid intrusions than other deep learning algorithms used for classification. In addition,
our proposed approach improves accuracy, precision, recall, and F1 score, achieving a high detection
accuracy rate of 99.50%.
哪里办理(csu毕业证书)查尔斯特大学毕业证硕士学历原版一模一样
原版一模一样【微信：741003700 】【(csu毕业证书)查尔斯特大学毕业证硕士学历】【微信：741003700 】学位证，留信认证（真实可查，永久存档）offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原海外各大学 Bachelor Diploma degree, Master Degree Diploma
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
Eric Nizeyimana's document 2006 from gicumbi to ttc nyamata handball play
this notes have been created
by Eric36 at nyamata ttc
after readings
pe book for y2sme .
Presentation of IEEE Slovenia CIS (Computational Intelligence Society) Chapte...
Presentation of IEEE Slovenia CIS (Computational Intelligence Society) Chapte...University of Maribor
Slides from talk presenting:
Aleš Zamuda: Presentation of IEEE Slovenia CIS (Computational Intelligence Society) Chapter and Networking.
Presentation at IcETRAN 2024 session:
"Inter-Society Networking Panel GRSS/MTT-S/CIS
Panel Session: Promoting Connection and Cooperation"
IEEE Slovenia GRSS
IEEE Serbia and Montenegro MTT-S
IEEE Slovenia CIS
11TH INTERNATIONAL CONFERENCE ON ELECTRICAL, ELECTRONIC AND COMPUTING ENGINEERING
3-6 June 2024, Niš, SerbiaHarnessing WebAssembly for Real-time Stateless Streaming Pipelines
Traditionally, dealing with real-time data pipelines has involved significant overhead, even for straightforward tasks like data transformation or masking. However, in this talk, we’ll venture into the dynamic realm of WebAssembly (WASM) and discover how it can revolutionize the creation of stateless streaming pipelines within a Kafka (Redpanda) broker. These pipelines are adept at managing low-latency, high-data-volume scenarios.
Advanced control scheme of doubly fed induction generator for wind turbine us...
This paper describes a speed control device for generating electrical energy on an electricity network based on the doubly fed induction generator (DFIG) used for wind power conversion systems. At first, a double-fed induction generator model was constructed. A control law is formulated to govern the flow of energy between the stator of a DFIG and the energy network using three types of controllers: proportional integral (PI), sliding mode controller (SMC) and second order sliding mode controller (SOSMC). Their different results in terms of power reference tracking, reaction to unexpected speed fluctuations, sensitivity to perturbations, and resilience against machine parameter alterations are compared. MATLAB/Simulink was used to conduct the simulations for the preceding study. Multiple simulations have shown very satisfying results, and the investigations demonstrate the efficacy and power-enhancing capabilities of the suggested control system.
22CYT12-Unit-V-E Waste and its Management.ppt
Introduction- e - waste – definition - sources of e-waste– hazardous substances in e-waste - effects of e-waste on environment and human health- need for e-waste management– e-waste handling rules - waste minimization techniques for managing e-waste – recycling of e-waste - disposal treatment methods of e- waste – mechanism of extraction of precious metal from leaching solution-global Scenario of E-waste – E-waste in India- case studies.
Recycled Concrete Aggregate in Construction Part III
Using recycled concrete aggregates (RCA) for pavements is crucial to achieving sustainability. Implementing RCA for new pavement can minimize carbon footprint, conserve natural resources, reduce harmful emissions, and lower life cycle costs. Compared to natural aggregate (NA), RCA pavement has fewer comprehensive studies and sustainability assessments.
Understanding Inductive Bias in Machine Learning
This presentation explores the concept of inductive bias in machine learning. It explains how algorithms come with built-in assumptions and preferences that guide the learning process. You'll learn about the different types of inductive bias and how they can impact the performance and generalizability of machine learning models.
The presentation also covers the positive and negative aspects of inductive bias, along with strategies for mitigating potential drawbacks. We'll explore examples of how bias manifests in algorithms like neural networks and decision trees.
By understanding inductive bias, you can gain valuable insights into how machine learning models work and make informed decisions when building and deploying them.
Unit-III-ELECTROCHEMICAL STORAGE DEVICES.ppt
Batteries -Introduction – Types of Batteries – discharging and charging of battery - characteristics of battery –battery rating- various tests on battery- – Primary battery: silver button cell- Secondary battery :Ni-Cd battery-modern battery: lithium ion battery-maintenance of batteries-choices of batteries for electric vehicle applications.
Fuel Cells: Introduction- importance and classification of fuel cells - description, principle, components, applications of fuel cells: H2-O2 fuel cell, alkaline fuel cell, molten carbonate fuel cell and direct methanol fuel cells.
Recently uploaded (20)
IEEE Aerospace and Electronic Systems Society as a Graduate Student Member
IEEE Aerospace and Electronic Systems Society as a Graduate Student Member
DEEP LEARNING FOR SMART GRID INTRUSION DETECTION: A HYBRID CNN-LSTM-BASED MODEL
DEEP LEARNING FOR SMART GRID INTRUSION DETECTION: A HYBRID CNN-LSTM-BASED MODEL
Eric Nizeyimana's document 2006 from gicumbi to ttc nyamata handball play
Eric Nizeyimana's document 2006 from gicumbi to ttc nyamata handball play
Presentation of IEEE Slovenia CIS (Computational Intelligence Society) Chapte...
Presentation of IEEE Slovenia CIS (Computational Intelligence Society) Chapte...
Harnessing WebAssembly for Real-time Stateless Streaming Pipelines
Harnessing WebAssembly for Real-time Stateless Streaming Pipelines
Advanced control scheme of doubly fed induction generator for wind turbine us...
Advanced control scheme of doubly fed induction generator for wind turbine us...
Engineering Drawings Lecture Detail Drawings 2014.pdf
Engineering Drawings Lecture Detail Drawings 2014.pdf
Recycled Concrete Aggregate in Construction Part III
Recycled Concrete Aggregate in Construction Part III
Manufacturing Process of molasses based distillery ppt.pptx
Manufacturing Process of molasses based distillery ppt.pptx
BPV-GUI-01-Guide-for-ASME-Review-Teams-(General)-10-10-2023.pdf
BPV-GUI-01-Guide-for-ASME-Review-Teams-(General)-10-10-2023.pdf
basic-wireline-operations-course-mahmoud-f-radwan.pdf
basic-wireline-operations-course-mahmoud-f-radwan.pdf
Cryogenic technology
- 1. CRYOGENIC TECHNOLOGY PRESENTED BY : PARMOD 111212
- 3. APPLICATIONS SPACE VEHICLE GRINDING SUPERCONDUCTIVITY FOOD INDUSTRY PRESERVATION OF BODIES CHILLING AND FREZZING
- 11. History of Cryogenic Technology In Rocket Propulsion The United States was the first country to develop cryogenic rocket engines. with RL-10 engines, registered its first successful flight in 1963 and is still used on the Atlas V rocket. On April 15, 2010, India launched communication satellite GSAT-4 into orbit. The Geo-Synchronous Satellite Launch Vehicle (GSLV)
- 12. Cryogenic technology o Cryogenic technology involves the use of rocket propellants at extremely low temperatures. o The combination of liquid oxygen and liquid hydrogen offers the highest energy efficiency for rocket engines that need to produce large amounts of thrust.
- 13. PROCESS FLOW
- 14. Pressure of liquid nitrogen is increased from 0.7MPa to 2.9MPa using turbo-pumps. Some of liquid nitrogen is utilised in cooling engine. In gas form, nitrogen occupies a volume, 700 times than that in liquid form. The engine's nozzle is 121 in (3.1 m) long with a diameter of 10.3 in (0.26 m) at its throat and 90.7 in (2.30 m) at its exit.
- 15. Advantages High Energy per unit mass: Propellants like oxygen and hydrogen in liquid form give very high amounts of energy per unit mass due to which the amount of fuel to be carried aboard the rockets decreases. Clean Fuels Hydrogen and oxygen are extremely clean fuels. When they combine, they give out only water. This water is thrown out of the nozzle in form of very hot vapour. Thus the rocket is nothing but a high burning steam engine Economical Use of oxygen and hydrogen as fuels is very economical, as liquid oxygen costs less than gasoline.
- 16. THANK YOU