Unit v
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The document summarizes the key components and operation of a liquid propellant rocket engine. It discusses that a liquid propellant rocket engine uses liquid fuel (like refined petrol or liquid hydrogen) and liquid oxygen that are pumped into a combustion chamber along with a preheated fuel-oxidizer mixture. The combustion of this mixture in the chamber produces high pressure and temperature gases that are expanded through a nozzle to produce high velocity thrust. Some advantages are reusability, controllability, and high specific impulse for long range operations. Disadvantages include more complex construction, higher costs, safety issues, larger size, and need for vibration insulation.
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The document discusses the parts, functions, and operation of a turbocharger. A turbocharger uses exhaust gases to drive a turbine which spins a compressor, forcing more air into the engine to increase power without increasing engine size. It describes the key parts like the turbine wheel, compressor wheel, and housing. It explains the driving, sucking, compressing, and cooling functions that force denser air into the combustion chamber, producing more power. Maintaining proper oil flow and sealing is also important for turbocharger operation and engine performance.
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The document discusses turbochargers, including:
- A turbocharger uses the waste heat from exhaust gases to power a turbine, which spins a compressor to force more air into the engine cylinders, increasing power.
- It has a turbine section, compressor section, bearing housing, and wastegate valve. The bearing allows the turbine and compressor wheels to spin at high speeds while absorbing vibrations. The wastegate diverts some exhaust to control boost pressure.
- During acceleration, more exhaust flow spins the turbine and compressor faster, supplying more air/fuel to the engine for more power. The wastegate manages boost pressure to prevent damage from excessive pressure rises.
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Jet engines work by compressing air, mixing it with fuel, combusting the mixture, and expelling the hot gases out of a nozzle using Newton's third law of motion. The key components of a jet engine are the compressor, combustion chamber, and turbine. Jet engines experience high temperatures that cause expansion and contraction of parts, so bearings are used to allow for differential movement and prevent stresses from developing in the rotating assembly.
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In Combustion Gas Turbines you will learn the operating principles of the compressor, the combustion chamber, and turbine section. You will also learn about the construction of the compressor, combustion chamber, and turbine section; the blading arrangement; and the use of the turbine as a driver and hot-gas generator. Also covered is turbine auxiliary equipment such as starting devices, governors, and overspeed mechanisms, and their functions. In Combustion Gas Turbines presentation you will learn about the functions of casing seals, bearings and lubrication in a combustion gas turbine. The slides also covers the control and operation of combustion gas turbines, including start-up, operating, and shutdown procedures, and the control of vibration, critical speed, and turbine imbalance. Finally, you will learn about temperature control, the use of turning gears, and turbine control using the automated control panel. Through this understanding of turbine principles, construction, and control, you will be better able to secure efficient and safe turbine operation.
Turbocharger
The document discusses turbochargers, including:
- A turbocharger uses the waste heat from exhaust gases to power a turbine, which spins a compressor to force more air into the engine cylinders, increasing power.
- It has a turbine section, compressor section, bearing housing, and wastegate valve. The bearing allows the turbine and compressor wheels to spin at high speeds while absorbing vibrations. The wastegate diverts some exhaust to control boost pressure.
- During acceleration, more exhaust flow spins the turbine and compressor faster, supplying more air/fuel to the engine for more power. The wastegate manages boost pressure to prevent damage from excessive pressure rises.
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A turbocharger increases an engine's efficiency and power output by forcing extra air into the combustion chamber using a turbine powered by exhaust gases. It consists of a turbine, compressor, and center housing. The turbine converts exhaust energy into rotational energy, powering the compressor to increase air density and allow more air into each cylinder. This provides more power but can cause lag until boost is generated. Turbochargers are commonly used on vehicles and construction equipment to improve performance or fuel efficiency without increasing engine size.
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Industrial steam turbines
Steam turbines extract heat from steam to power generators or mechanical devices. They operate by expanding high pressure steam through the turbine to low pressure. Condensing turbines experience the largest pressure drop and extract the most energy, while backpressure turbines exhaust steam at or above atmospheric pressure to power industrial processes. Backpressure turbines are often a cost-effective replacement for pressure reduction valves, using steam that would otherwise be wasted to generate electricity.
Turbocharger
A turbocharger uses the heat energy from exhaust gases to power a turbine, which spins an air compressor to force more air into the engine. It allows an engine to produce more power without increasing engine size. A turbocharger has a turbine section, compressor section, shaft connecting the turbine and compressor, and bearing housing. It works by partially exhaust gases powering the turbine, which spins the compressor to pressurize incoming air before it enters the engine, allowing for more efficient combustion. Turbochargers are used in cars, trucks, motorcycles, aircraft and marine engines to improve power density without increasing engine size.
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- Turbochargers use the otherwise wasted exhaust energy from engines to drive a turbine connected to an air compressor, boosting intake air pressure and engine power output.
- By pressurizing intake air, more fuel can be burned, improving engine efficiency and allowing engines to maintain higher power levels even at high altitudes where air is thinner.
- While turbochargers improve power, they require careful maintenance due to high exhaust temperatures and added complexity, which can increase failure risks if not properly serviced. For agricultural tractors, turbocharging is an effective way to boost low-speed power generation and high-altitude operation.
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Gas turbines operate by compressing air, adding fuel and igniting it to generate high-temperature gas, and expanding this gas through a turbine to power the compressor and provide output shaft work. There are various types including turbojets used in aircraft, turboprops which drive propellers via reduction gears, and turbofans which have a large fan at the front and achieve higher efficiency. Ramjets have no moving parts and rely solely on forward speed for compression, making them unable to produce static thrust.
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Turbochargers and superchargers compress air entering an internal combustion engine to increase power output. Turbochargers use exhaust gases to drive a turbine which spins a compressor, while superchargers use a belt connected to the engine crankshaft. Early applications included large ships and trucks in the 1930s. Turbocharged passenger cars debuted in the 1960s but had reliability issues. Stricter emissions regulations in the 1980s increased turbocharging of diesel truck engines. Today various turbocharger designs are used to optimize performance across the engine's rev range.
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This ppt contains the parts, construction, working, advantages, disadvantages,applications etc... of the turbocharger.
Turbo charger
A turbocharger is a turbine-driven air compressor that forces more air into the engine cylinders. It uses the exhaust gases to power a turbine, which spins an air compressor via a shaft. This increases the engine's power output by allowing it to burn more fuel. Turbochargers have axial or radial turbines made of heat-resistant alloys, and compressor blades made of aluminum. They are used in cars, motorcycles, trucks, aircraft and marine engines to improve torque and reduce emissions. While improving performance, turbochargers are also more expensive and complex than naturally aspirated engines.
Method of supercharging
There are 5 main methods of supercharging internal combustion engines:
1) The compressor is driven directly by the engine using a belt or gears.
2) The compressor is driven by an exhaust gas turbine, with no direct mechanical connection to the engine. This is known as a turbocharger.
3) The compressor is driven by an external power source separate from the engine.
4) The engine drives both the compressor and a free turbine, with the turbine power used for an external load. This is known as a generator type supercharging.
5) The engine, compressor, and turbine are all directly coupled together using gears, with the turbine helping to drive the compressor under part load conditions on the engine
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Superchargers and turbochargers both work to increase the density of the air-fuel mixture inducted into an engine, allowing for more power output. A supercharger is mechanically driven by the engine's crankshaft, while a turbocharger uses the engine's exhaust gases to drive a turbine which spins a compressor. Superchargers provide immediate power but are less efficient, while turbochargers have lag but allow for smaller engine sizes. Both systems provide more horsepower but also have disadvantages like increased cost, complexity, and maintenance requirements.
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A turbocharger increases an engine's efficiency and power output by forcing extra air into the combustion chamber using a turbine powered by exhaust gases. It consists of a turbine, compressor, and center housing. The turbine converts exhaust energy into rotational energy, powering the compressor to increase air density and allow more air into each cylinder. This provides more power but can cause lag until boost is generated. Turbochargers are commonly used on vehicles and construction equipment to improve performance or fuel efficiency without increasing engine size.
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Industrial steam turbines
Steam turbines extract heat from steam to power generators or mechanical devices. They operate by expanding high pressure steam through the turbine to low pressure. Condensing turbines experience the largest pressure drop and extract the most energy, while backpressure turbines exhaust steam at or above atmospheric pressure to power industrial processes. Backpressure turbines are often a cost-effective replacement for pressure reduction valves, using steam that would otherwise be wasted to generate electricity.
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A turbocharger uses the heat energy from exhaust gases to power a turbine, which spins an air compressor to force more air into the engine. It allows an engine to produce more power without increasing engine size. A turbocharger has a turbine section, compressor section, shaft connecting the turbine and compressor, and bearing housing. It works by partially exhaust gases powering the turbine, which spins the compressor to pressurize incoming air before it enters the engine, allowing for more efficient combustion. Turbochargers are used in cars, trucks, motorcycles, aircraft and marine engines to improve power density without increasing engine size.
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The document discusses turbochargers and provides details about their operation and advantages/disadvantages. It then summarizes a research case study on the effects of applying thermal barrier coatings to diesel engine components. The study found that coatings reduced emissions, increased exhaust temperatures, and improved efficiency. Specifically, it showed reductions in CO, HC, and particulate emissions of 35-40%, 40%, and 48%, respectively, along with a 10% increase in thermal efficiency.
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This document discusses different types of superchargers used to boost engine power. It describes how superchargers work by compressing air delivered to the engine, allowing for more fuel and a more powerful combustion. The document categorizes superchargers based on their compression methods and discusses common types like roots, twin-screw, and centrifugal superchargers in detail. It also covers why superchargers are used, how they provide advantages over turbochargers, and concludes that superchargers are still a cost-effective way to significantly increase an engine's horsepower.
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- Turbochargers use the otherwise wasted exhaust energy from engines to drive a turbine connected to an air compressor, boosting intake air pressure and engine power output.
- By pressurizing intake air, more fuel can be burned, improving engine efficiency and allowing engines to maintain higher power levels even at high altitudes where air is thinner.
- While turbochargers improve power, they require careful maintenance due to high exhaust temperatures and added complexity, which can increase failure risks if not properly serviced. For agricultural tractors, turbocharging is an effective way to boost low-speed power generation and high-altitude operation.
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Gas turbines operate by compressing air, adding fuel and igniting it to generate high-temperature gas, and expanding this gas through a turbine to power the compressor and provide output shaft work. There are various types including turbojets used in aircraft, turboprops which drive propellers via reduction gears, and turbofans which have a large fan at the front and achieve higher efficiency. Ramjets have no moving parts and rely solely on forward speed for compression, making them unable to produce static thrust.
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Turbocharger and superchrger
Turbochargers and superchargers compress air entering an internal combustion engine to increase power output. Turbochargers use exhaust gases to drive a turbine which spins a compressor, while superchargers use a belt connected to the engine crankshaft. Early applications included large ships and trucks in the 1930s. Turbocharged passenger cars debuted in the 1960s but had reliability issues. Stricter emissions regulations in the 1980s increased turbocharging of diesel truck engines. Today various turbocharger designs are used to optimize performance across the engine's rev range.
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This document provides an overview of gas turbine theory and construction. It describes the basic components and thermodynamic processes of gas turbine engines, including the compressor, combustion chamber, turbine, and support systems. The Brayton cycle of open steady-flow operation is explained. Compression can be achieved through either radial or axial compressors. Fuel is ignited in the combustion chamber along with compressed air. The turbine converts the energy of combustion gases to rotational work to power the compressor and external loads. Support systems include air, fuel, lubrication, starting, and power transmission. Gas turbines are lighter and simpler than steam turbines.
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This ppt contains the parts, construction, working, advantages, disadvantages,applications etc... of the turbocharger.
Turbo charger
A turbocharger is a turbine-driven air compressor that forces more air into the engine cylinders. It uses the exhaust gases to power a turbine, which spins an air compressor via a shaft. This increases the engine's power output by allowing it to burn more fuel. Turbochargers have axial or radial turbines made of heat-resistant alloys, and compressor blades made of aluminum. They are used in cars, motorcycles, trucks, aircraft and marine engines to improve torque and reduce emissions. While improving performance, turbochargers are also more expensive and complex than naturally aspirated engines.
Method of supercharging
There are 5 main methods of supercharging internal combustion engines:
1) The compressor is driven directly by the engine using a belt or gears.
2) The compressor is driven by an exhaust gas turbine, with no direct mechanical connection to the engine. This is known as a turbocharger.
3) The compressor is driven by an external power source separate from the engine.
4) The engine drives both the compressor and a free turbine, with the turbine power used for an external load. This is known as a generator type supercharging.
5) The engine, compressor, and turbine are all directly coupled together using gears, with the turbine helping to drive the compressor under part load conditions on the engine
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Superchargers and turbochargers both work to increase the density of the air-fuel mixture inducted into an engine, allowing for more power output. A supercharger is mechanically driven by the engine's crankshaft, while a turbocharger uses the engine's exhaust gases to drive a turbine which spins a compressor. Superchargers provide immediate power but are less efficient, while turbochargers have lag but allow for smaller engine sizes. Both systems provide more horsepower but also have disadvantages like increased cost, complexity, and maintenance requirements.
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Energy conversion is the process of changing one form of energy into another, a fundamental capability that enables modern civilization to function. It can occur in various ways, from converting the kinetic energy of wind into mechanical power through windmills to transforming solar energy into electrical energy in solar panels. This transformation is essential not just for daily usage but also for harnessing and utilizing natural resources more efficiently. In the context of rural electrification, this process plays a critical role. By converting available local energy resources into electricity, rural communities can access a stable and reliable power supply. This not only improves the quality of life but also supports economic development by powering homes, schools, businesses, and healthcare facilities. Consequently, energy conversion facilitates the broader goal of rural electrification, demonstrating the interconnection between technological innovation and societal advancement.
Steam Power Plant
In these slides we explain three parts (1)steam turbines(2)steam generators(3)seam power plant.We also explain how these three parts cooperate with each other to make the whole system.
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.
12000721061_SUBHOJIT DAS.pptx
This document provides information about a thermal power plant. It discusses the working principle where coal is burned to heat water into steam, which spins a turbine connected to a generator to produce electricity. It describes the main equipment used such as the coal handling plant, pulverizer, boiler, turbine, condenser, cooling towers, feedwater heater, economizer and air preheater. It also discusses the waste generated and control methods used, and lists advantages like low cost fuel and disadvantages like pollution.
Presentation on thermal power plant
This document provides an overview of a thermal power station. It begins with defining a thermal power station as a generating station that converts the heat energy from coal combustion into electrical energy. It then outlines the main components of a thermal power station in a block diagram and lists the main equipment, including the coal handling plant, pulverizing plant, boiler, turbine, alternator, condenser, and cooling towers. Each of the major equipment is then explained in more detail. Finally, the document discusses the advantages of thermal power stations in being able to use cheap fuel and their disadvantages in polluting the atmosphere.
Power plant by ejaz
This document discusses power plants and boilers. It describes the main components of power plants, including generators, rotating machines, engines and turbines. It then lists and briefly describes several common types of power plants, including those powered by diesel, coal, gas, solar, wind, geothermal, hydroelectric and nuclear energy. The document goes on to explain the steam formation process in boilers and the different types of steam that can be produced. It also classifies boilers based on their tube configuration and other characteristics, and discusses key boiler accessories and mountings.
internship11.pptx
The document summarizes an internship at the Gas Turbine Research Establishment (GTRE) under DRDO. GTRE develops gas turbine engines for military applications. During the internship, the author performed non-destructive testing on low pressure turbine blades using fluorescent penetration testing, magnetic particle testing, ultrasonic testing, and radiography. The internship provided hands-on experience in tasks like performance analysis of turbine blades, documentation, literature review, and understanding the workplace culture of GTRE. The intern gained valuable exposure to gas turbine design, working, and the professional research environment.
Chapter 6c -_ht_design_consideration_-_latest
The document discusses design considerations for a hydrotreating facility to produce very low sulphur diesel fuel. Key factors include feed characteristics like sulphur content, selecting an appropriate catalyst, and optimizing process variables like temperature, hydrogen pressure, and space velocity. The goal is to effectively remove difficult aromatic sulphur compounds while addressing issues like equipment limitations and product quality requirements.
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Turbo jet engine
The document discusses different types of jet engines. It describes the basic workings of a turbo jet engine including its thermodynamic cycle and performance characteristics. It then compares the turbo jet to turbo prop and turbo fan engines. The turbo prop combines a jet engine with a propeller, driven by a reduction gearbox, allowing for better fuel efficiency at lower speeds but adding complexity. The turbo fan divides the air into primary and secondary streams, using some of the air to bypass the engine for additional thrust at lower velocities than a turbo jet alone.
Unit ii Flow through circular pipes
The document discusses flow through circular pipes. It considers a horizontal pipe of radius R with a fluid element of radius r sliding through the viscous fluid. An equation is derived for the velocity profile by equating shear stress and rate of deformation. The equation contains an integration constant C which is determined using the boundary condition that velocity is 0 at the pipe wall (r=R). This allows determining the maximum velocity Umax at the center of the pipe (r=0). The flow rate per second through an elementary ring is also defined. Finally, the drop in pressure over the length of the pipe is mentioned.
Unit IV Reciprocating pump with air vessel
An air vessel is fitted to reciprocating pumps to provide continuous and uniform fluid flow. It contains compressed air above liquid and has an opening where liquid can flow in and out. This allows the pump to run at high speeds without separation. The document also describes equations to calculate head loss due to friction in suction and delivery pipes at different points in the stroke, as well as equations for pressure head in the cylinder.
Unit IV Centriufugal and reciprocating pump
This document discusses centrifugal pumps and reciprocating pumps. It describes the key parts and working of a centrifugal pump, including the impeller, casing, suction and delivery pipes. The impeller rotates and increases the kinetic energy and pressure of the fluid. Characteristic curves showing variations in head, power and discharge with speed are also explained. For reciprocating pumps, the mechanical energy is converted to hydraulic energy by a piston moving back and forth in a cylinder.
Unit ii Process Planning
This document discusses process planning. It defines process planning as systematically determining how a product will be manufactured economically. The objectives are to prepare instructions for manufacturing a product and its parts along with specifications. Process planning activities include analyzing part requirements, determining operation sequences, selecting equipment, calculating times, and documenting plans. Common approaches are manual and computer-aided process planning (CAPP), which can be retrieval-based or generative.
Unit ii usm
Ultrasonic machining uses abrasive slurry and a vibrating tool to remove small chips of metal from a workpiece. It consists of an oscillator, transducer, tool, and slurry system. The oscillator converts electrical energy to high-frequency mechanical vibrations in the transducer. These vibrations are transmitted to the tool via the transducer cone and tool holder. As the tool vibrates at ultrasonic frequencies, abrasive particles in the slurry remove material from the workpiece through abrasion. The metal removal rate depends on factors like the abrasive grain size, material, slurry concentration, vibration amplitude, and frequency.
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This document discusses chemical and electrochemical energy based machining processes. It describes chemical machining (CHM) where material is removed through controlled etching, and electrochemical machining (ECM) where material is removed via ion displacement in a chemical solution. Specific processes covered include CHM, ECM, electrochemical grinding (ECG), electrochemical honing (ECH), and electrochemical deburring (ECD). The document provides details on the construction, working principles, and applications of these various chemical and electrochemical energy based machining techniques.
Electrical discharge machining
The document discusses Electrical Discharge Machining (EDM). EDM is a manufacturing process where a desired shape is obtained by removing material from a workpiece using electrical discharges between two electrodes separated by a dielectric liquid. As the distance between the electrodes is reduced, current flows due to dielectric breakdown causing material removal from both electrodes. EDM was invented in the 1940s and has since improved, increasing machining speeds and reducing costs. EDM can machine hard metals and intricate shapes without needing to soften the material. The main components of an EDM system are the power supply, dielectric medium, workpiece and tool electrodes, and servo control unit. Material is removed through the formation and collapse of plasma channels between the electrodes during
Dielectric
1) Dielectric fluids used in EDM must provide an oxygen-free environment for machining, have strong dielectric resistance to prevent electrical breakdown, and ionize during sparking. Common dielectric fluids are kerosene and deionized water.
2) Electrode materials for EDM tools must have high electrical and thermal conductivity for efficient sparking and less tool wear, and high melting points to prevent material removal from the tool. Common materials are graphite, copper, and brass.
3) Proper flushing of dielectric fluid is important to remove debris from the spark gap and prevent short-circuiting, improving surface finish and material removal rate. Common flushing techniques are pressure, reverse, suction, jet
Wjm unit ii
Water jet machining uses high-pressure water to cut soft, non-metallic materials. It works by converting the kinetic energy of the water jet into pressure energy when it strikes the material, inducing stresses that exceed the material's shear strength and loosening small chips. The water jet machining system consists of a pump to pressurize water, which is then accelerated through a nozzle to cut the material. It allows clean, precise cutting without thermal damage and is suitable for cutting intricate contours in materials like paper, plastics, wood and rubber.
Unit ii ajm
The document discusses abrasive jet machining (AJM). It describes the principle, construction, working, advantages, disadvantages, applications, characteristics and factors affecting the material removal rate in AJM. The key points are:
1. AJM uses a high-speed stream of abrasive particles mixed with compressed air or gas to machine hard, brittle materials.
2. It consists of a mixing chamber, nozzle, pressure gauge and other components to mix and direct the abrasive particles.
3. AJM can machine intricate shapes without heat or contact, but has a low material removal rate and requires dust collection.
CE 6451 FMM Unit 1 Properties of fluids
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The document discusses various types of maintenance including corrective, scheduled, preventive, and predictive maintenance. It defines each type and provides examples. Preventive maintenance aims to detect and prevent failures through systematic inspection and minor repairs. The objectives are to keep equipment available and maintain production efficiency. Predictive maintenance uses sensors to predict issues before failure. Replacement analysis considers when to replace assets based on factors like deterioration, obsolescence, and cost. Various replacement problems are examined, including economic life and choosing between existing and new assets.
UNIT – I.ppt
This document provides an introduction to economics. It defines economics as the study of how limited resources are used to satisfy unlimited human wants. The objectives of economics are outlined as a high level of employment, price stability, efficiency, an equitable distribution of income, and growth. The flow of goods, services, resources and money payments in a simple economy is described involving households, business firms, and the payments between them. The law of supply and demand and the factors influencing supply and demand are explained. Engineering economics is introduced as analyzing alternatives within a project to compare monetary returns. The concepts of cost, revenue, profit, break even analysis, and margin of safety are defined in the context of economics.
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This document discusses various methods of depreciation including straight line, declining balance, sum of years digits, sinking fund, and service output methods. It provides definitions and formulas for calculating depreciation and book value under each method. Examples are given to demonstrate how to use the formulas to calculate depreciation and book value for different time periods and asset information. Causes of depreciation and evaluation of public alternatives are also briefly covered.
MG 6863- ENGG ECONOMICS UNIT II VALUE ENGINEERING
This document discusses value engineering interest formulas and their applications. It begins by defining value analysis and its aims to critically analyze costs and design of components. Different types of values like cost, exchange and use values are explained. Interest formulas for single payment compound amount, present worth amount and uniform gradient series are provided along with examples. The key steps in value engineering procedure are outlined. Effective interest rate calculation is also demonstrated with an example.
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一比一原版(爱大毕业证书)爱荷华大学毕业证如何办理
原版一模一样【微信：741003700 】【(爱大毕业证书)爱荷华大学毕业证成绩单】【微信：741003700 】学位证，留信认证（真实可查，永久存档）原件一模一样纸张工艺/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。
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
【主营项目】
一.毕业证【q微741003700】成绩单、使馆认证、教育部认证、雅思托福成绩单、学生卡等！
二.真实使馆公证(即留学回国人员证明,不成功不收费)
三.真实教育部学历学位认证（教育部存档！教育部留服网站永久可查）
四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度)
如果您处于以下几种情况：
◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【q/微741003700】
◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
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
办理(爱大毕业证书)爱荷华大学毕业证【微信：741003700 】外观非常简单，由纸质材料制成，上面印有校徽、校名、毕业生姓名、专业等信息。
办理(爱大毕业证书)爱荷华大学毕业证【微信：741003700 】格式相对统一，各专业都有相应的模板。通常包括以下部分：
校徽：象征着学校的荣誉和传承。
校名:学校英文全称
授予学位：本部分将注明获得的具体学位名称。
毕业生姓名：这是最重要的信息之一，标志着该证书是由特定人员获得的。
颁发日期：这是毕业正式生效的时间，也代表着毕业生学业的结束。
其他信息：根据不同的专业和学位，可能会有一些特定的信息或章节。
办理(爱大毕业证书)爱荷华大学毕业证【微信：741003700 】价值很高，需要妥善保管。一般来说，应放置在安全、干燥、防潮的地方，避免长时间暴露在阳光下。如需使用，最好使用复印件而不是原件，以免丢失。
综上所述，办理(爱大毕业证书)爱荷华大学毕业证【微信：741003700 】是证明身份和学历的高价值文件。外观简单庄重，格式统一，包括重要的个人信息和发布日期。对持有人来说，妥善保管是非常重要的。
原版制作(Humboldt毕业证书)柏林大学毕业证学位证一模一样
原件一模一样【微信：bwp0011】《(Humboldt毕业证书)柏林大学毕业证学位证》【微信：bwp0011】学位证，留信认证（真实可查，永久存档）原件一模一样纸张工艺/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。
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微bwp0011
【主营项目】
一.毕业证【微bwp0011】成绩单、使馆认证、教育部认证、雅思托福成绩单、学生卡等！
二.真实使馆公证(即留学回国人员证明,不成功不收费)
三.真实教育部学历学位认证（教育部存档！教育部留服网站永久可查）
四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度)
如果您处于以下几种情况：
◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【微bwp0011】
◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
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
Null Bangalore | Pentesters Approach to AWS IAM
#Abstract:
- Learn more about the real-world methods for auditing AWS IAM (Identity and Access Management) as a pentester. So let us proceed with a brief discussion of IAM as well as some typical misconfigurations and their potential exploits in order to reinforce the understanding of IAM security best practices.
- Gain actionable insights into AWS IAM policies and roles, using hands on approach.
#Prerequisites:
- Basic understanding of AWS services and architecture
- Familiarity with cloud security concepts
- Experience using the AWS Management Console or AWS CLI.
- For hands on lab create account on [killercoda.com](https://killercoda.com/cloudsecurity-scenario/)
# Scenario Covered:
- Basics of IAM in AWS
- Implementing IAM Policies with Least Privilege to Manage S3 Bucket
- Objective: Create an S3 bucket with least privilege IAM policy and validate access.
- Steps:
- Create S3 bucket.
- Attach least privilege policy to IAM user.
- Validate access.
- Exploiting IAM PassRole Misconfiguration
-Allows a user to pass a specific IAM role to an AWS service (ec2), typically used for service access delegation. Then exploit PassRole Misconfiguration granting unauthorized access to sensitive resources.
- Objective: Demonstrate how a PassRole misconfiguration can grant unauthorized access.
- Steps:
- Allow user to pass IAM role to EC2.
- Exploit misconfiguration for unauthorized access.
- Access sensitive resources.
- Exploiting IAM AssumeRole Misconfiguration with Overly Permissive Role
- An overly permissive IAM role configuration can lead to privilege escalation by creating a role with administrative privileges and allow a user to assume this role.
- Objective: Show how overly permissive IAM roles can lead to privilege escalation.
- Steps:
- Create role with administrative privileges.
- Allow user to assume the role.
- Perform administrative actions.
- Differentiation between PassRole vs AssumeRole
Try at [killercoda.com](https://killercoda.com/cloudsecurity-scenario/)
Object Oriented Analysis and Design - OOAD
This ppt gives detailed description of Object Oriented Analysis and design.
一比一原版(uoft毕业证书)加拿大多伦多大学毕业证如何办理
原版一模一样【微信：741003700 】【(uoft毕业证书)加拿大多伦多大学毕业证成绩单】【微信：741003700 】学位证，留信认证（真实可查，永久存档）原件一模一样纸张工艺/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。
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
【主营项目】
一.毕业证【q微741003700】成绩单、使馆认证、教育部认证、雅思托福成绩单、学生卡等！
二.真实使馆公证(即留学回国人员证明,不成功不收费)
三.真实教育部学历学位认证（教育部存档！教育部留服网站永久可查）
四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度)
如果您处于以下几种情况：
◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【q/微741003700】
◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
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
办理(uoft毕业证书)加拿大多伦多大学毕业证【微信：741003700 】外观非常简单，由纸质材料制成，上面印有校徽、校名、毕业生姓名、专业等信息。
办理(uoft毕业证书)加拿大多伦多大学毕业证【微信：741003700 】格式相对统一，各专业都有相应的模板。通常包括以下部分：
校徽：象征着学校的荣誉和传承。
校名:学校英文全称
授予学位：本部分将注明获得的具体学位名称。
毕业生姓名：这是最重要的信息之一，标志着该证书是由特定人员获得的。
颁发日期：这是毕业正式生效的时间，也代表着毕业生学业的结束。
其他信息：根据不同的专业和学位，可能会有一些特定的信息或章节。
办理(uoft毕业证书)加拿大多伦多大学毕业证【微信：741003700 】价值很高，需要妥善保管。一般来说，应放置在安全、干燥、防潮的地方，避免长时间暴露在阳光下。如需使用，最好使用复印件而不是原件，以免丢失。
综上所述，办理(uoft毕业证书)加拿大多伦多大学毕业证【微信：741003700 】是证明身份和学历的高价值文件。外观简单庄重，格式统一，包括重要的个人信息和发布日期。对持有人来说，妥善保管是非常重要的。
Pressure Relief valve used in flow line to release the over pressure at our d...
Pressure Relief valve used in flow line to release the over pressure at our desired pressure
Mechatronics material . Mechanical engineering
Mechatronics is a multidisciplinary field that refers to the skill sets needed in the contemporary, advanced automated manufacturing industry. At the intersection of mechanics, electronics, and computing, mechatronics specialists create simpler, smarter systems. Mechatronics is an essential foundation for the expected growth in automation and manufacturing.
Mechatronics deals with robotics, control systems, and electro-mechanical systems.
Mechanical Engineering on AAI Summer Training Report-003.pdf
Mechanical Engineering PROJECT REPORT ON SUMMER VOCATIONAL TRAINING
AT MBB AIRPORT
一比一原版(osu毕业证书)美国俄勒冈州立大学毕业证如何办理
原版一模一样【微信：741003700 】【(osu毕业证书)美国俄勒冈州立大学毕业证成绩单】【微信：741003700 】学位证，留信认证（真实可查，永久存档）原件一模一样纸张工艺/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。
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
【主营项目】
一.毕业证【q微741003700】成绩单、使馆认证、教育部认证、雅思托福成绩单、学生卡等！
二.真实使馆公证(即留学回国人员证明,不成功不收费)
三.真实教育部学历学位认证（教育部存档！教育部留服网站永久可查）
四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度)
如果您处于以下几种情况：
◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【q/微741003700】
◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
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
办理(osu毕业证书)美国俄勒冈州立大学毕业证【微信：741003700 】外观非常简单，由纸质材料制成，上面印有校徽、校名、毕业生姓名、专业等信息。
办理(osu毕业证书)美国俄勒冈州立大学毕业证【微信：741003700 】格式相对统一，各专业都有相应的模板。通常包括以下部分：
校徽：象征着学校的荣誉和传承。
校名:学校英文全称
授予学位：本部分将注明获得的具体学位名称。
毕业生姓名：这是最重要的信息之一，标志着该证书是由特定人员获得的。
颁发日期：这是毕业正式生效的时间，也代表着毕业生学业的结束。
其他信息：根据不同的专业和学位，可能会有一些特定的信息或章节。
办理(osu毕业证书)美国俄勒冈州立大学毕业证【微信：741003700 】价值很高，需要妥善保管。一般来说，应放置在安全、干燥、防潮的地方，避免长时间暴露在阳光下。如需使用，最好使用复印件而不是原件，以免丢失。
综上所述，办理(osu毕业证书)美国俄勒冈州立大学毕业证【微信：741003700 】是证明身份和学历的高价值文件。外观简单庄重，格式统一，包括重要的个人信息和发布日期。对持有人来说，妥善保管是非常重要的。
Accident detection system project report.pdf
The Rapid growth of technology and infrastructure has made our lives easier. The
advent of technology has also increased the traffic hazards and the road accidents take place
frequently which causes huge loss of life and property because of the poor emergency facilities.
Many lives could have been saved if emergency service could get accident information and
reach in time. Our project will provide an optimum solution to this draw back. A piezo electric
sensor can be used as a crash or rollover detector of the vehicle during and after a crash. With
signals from a piezo electric sensor, a severe accident can be recognized. According to this
project when a vehicle meets with an accident immediately piezo electric sensor will detect the
signal or if a car rolls over. Then with the help of GSM module and GPS module, the location
will be sent to the emergency contact. Then after conforming the location necessary action will
be taken. If the person meets with a small accident or if there is no serious threat to anyone’s
life, then the alert message can be terminated by the driver by a switch provided in order to
avoid wasting the valuable time of the medical rescue team.
Digital Twins Computer Networking Paper Presentation.pptx
A Digital Twin in computer networking is a virtual representation of a physical network, used to simulate, analyze, and optimize network performance and reliability. It leverages real-time data to enhance network management, predict issues, and improve decision-making processes.
SCALING OF MOS CIRCUITS m .pptx
this ppt explains about scaling parameters of the mosfet it is basically vlsi subject
Call For Paper -3rd International Conference on Artificial Intelligence Advan...
* Registration is currently open *
Call for Research Papers!!!
Free – Extended Paper will be published as free of cost.
3rd International Conference on Artificial Intelligence Advances (AIAD 2024)
July 13 ~ 14, 2024, Virtual Conference
Webpage URL: https://aiad2024.org/index
Submission Deadline: June 22, 2024
Submission System URL:
https://aiad2024.org/submission/index.php
Contact Us:
Here's where you can reach us : aiad@aiad2024.org (or) aiadconference@yahoo.com
WikiCFP URL: http://wikicfp.com/cfp/servlet/event.showcfp?eventid=180509©ownerid=171656
#artificialintelligence #softcomputing #machinelearning #technology #datascience #python #deeplearning #tech #robotics #innovation #bigdata #coding #iot #computerscience #data #dataanalytics #engineering #robot #datascientist #software #automation #analytics #ml #pythonprogramming #programmer #digitaltransformation #developer #promptengineering #generativeai #genai #chatgpt #artificial #intelligence #datamining #networkscommunications #robotics #callforsubmission #submissionsopen #deadline #opencall #virtual #conference
Software Engineering and Project Management - Introduction, Modeling Concepts...
Introduction, Modeling Concepts and Class Modeling: What is Object orientation? What is OO development? OO Themes; Evidence for usefulness of OO development; OO modeling history. Modeling
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Building the Analysis Models: Requirement Analysis, Analysis Model Approaches, Data modeling Concepts, Object Oriented Analysis, Scenario-Based Modeling, Flow-Oriented Modeling, class Based Modeling, Creating a Behavioral Model.
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Unit v
- 1. UNIT V LIQUID PROPELLANT ROCKET ENGINE BY Dr. A. Asha Professor/Mechanical Engineering Kamaraj College of Engineering & Technology
- 2. LIQUID PROPELLANT ROCKET ENGINE • Construction (a) Liquid fuel (refined petrol, liquid hydrogen, hydrazine) (b) Liquid oxygen (c) Preheater : ( To preheat the fuel and oxygen which are maintained at low temperatures) (d) Nozzle : To increase the velocity and decrease the pressure of the gases
- 4. WORKING • Liquid fuel and liquid oxygen are pumped separately into a combustion chamber through control valves • Since the liquid fuel and liquid oxygen are stored at very low temperature they are preheated in the preheater to a suitable temperature. • The preheated fuel oxidizer mixture is injected into the combustion chamber through suitable injector and combustion takes place. • When the combustion takes place very high pressure and very high temperature gases are produced • The highly heated products pf combustion gases are then allowed to expand in the nozzle section • In the nozzle the pressure energy is converted to kinetic energy so the gases coming out from the unit with very high velocity.
- 5. ADVANTAGES AND DISADVANTGES • Advantages 1. Can be reused after recovery 2. Combustion process in controllable 3. Speed regulation is possible 4. High specific impulse 5. More economical for long range operations 6. Malfunctions and accidents can be rectified at any stage
- 6. DISADVANTGES • Construction is more complicated • Manufacturing cost is high‘ • Handling and safety problems • The size and weight of the engine is more compared to solid propellant rocket • High vibration • Proper insulation is needed