Ect dielsel-engine-whr-gmr
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This document discusses a waste heat recovery turbine project at a 200 MW diesel engine power plant in Chennai, India. The plant recovers heat from engine exhaust using a heat recovery steam generator and steam turbine to generate 600 kW of additional power. Installed in 2011, the turbine saves $300,000 per year in energy costs and will save $4.5 million over its 15-year lifetime. The project has an payback period of less than 2 years and provides environmental benefits like reduced carbon emissions.
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A40076857 gas-turbine-engines
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This document provides information on gas turbine engines. It discusses the basic components and operation of turbine engines including the air inlet, compressor, combustion chambers, turbine section, and exhaust section. It describes the advantages of turbine engines over piston engines. The document then goes into more detail about different types of compressors and turbines used in gas turbine engines as well as the physics principles that apply to how they work. It provides diagrams and explanations of open and closed gas turbine cycles, different engine types such as turbojet, turboprop and turbofan, and components like fans, spools, and ducting.Quasi turbine engine
The document describes the Quasi Turbine engine, a proposed pistonless rotary engine. It has a rhomboidal rotor with hinged sides that allow for increased compression and expansion ratios compared to the Wankel engine. The Quasi Turbine has fewer parts than pistons engines, is more efficient, produces high torque at low RPM, and has potential applications in aviation, power tools, vehicles and pumps due to its compact size, lack of vibration, and mechanical simplicity. The engine works through intake, compression, combustion and exhaust cycles without the use of pistons or crankshafts.
Quasi Turbine
The document summarizes a quasi turbine engine, which is a rotary engine invented in 1996 that has a 4-sided articulated rotor. It produces strong torque at low RPM without vibrations. The objectives are to combine the compressor and turbine into one unit for low noise and perfect balance. There are two models - one without carriages that has an oval housing and one with carriages that uses wheels and traction slots. It has advantages over traditional engines like fewer moving parts, less pollution, and better torque continuity. Potential applications include aviation, racing cars, and hydrogen engines.
Quasi Turbine Engine
The Quasiturbine engine was developed as an improvement on the standard Wankel or rotary engine. Unlike piston or standard rotary engines, the Quasiturbine's four-element rotor and carriages allow it to withstand the high pressures needed for photo-detonation combustion. This makes the Quasiturbine more efficient than piston or standard rotary engines. The Quasiturbine engine arranges the four strokes of combustion sequentially around an oval housing without needing a crankshaft. This produces power with each revolution rather than every other revolution as in piston engines. While still in development, the Quasiturbine engine aims to be simpler and more efficient than conventional engines.
Turbine engine 1
The document discusses various types of jet propulsion engines. It begins by explaining the design and construction of early gas turbine engines prior to WWII. It then covers the major types of jet propulsion in use today including rockets, ramjets, pulsejets, and gas turbine engines. For gas turbine engines, it describes the basic components and functioning of turbojet, turboprop, turboshaft, and turbofan engines. It also discusses engine components such as air inlet ducts, compressors, and combustion sections.
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The document summarizes a seminar presentation on the quasi turbine engine, a proposed new type of rotary engine. It describes some limitations of current reciprocating and Wankel rotary engines and then outlines the history and design of the quasi turbine engine. The quasi turbine uses a rhomboidal rotor to provide compression and expansion like a Wankel engine but allows higher volume ratios through hinged edges. It produces high torque at low RPM with fewer parts, less noise/vibration, and higher efficiency than other engine types. While still in development, the quasi turbine shows promise for applications requiring power-to-weight ratio like aviation and may see broader use in the future.
Chapter 71 gas turbine
A gas turbine works by compressing air in a compressor and adding fuel which is burned, heating the air. The hot air then expands through turbine blades, providing power. Gas turbines are used for aircraft, locomotives, power generation and more. They have high power-to-weight ratios but low thermal efficiency compared to steam plants. Various techniques can improve efficiency, such as regeneration which recovers heat from the exhaust to preheat the incoming air.
Turbo
The document provides technical details about the Trent 1000 engine used in the Boeing 787 Dreamliner. It is a three-shaft turbofan engine with low, intermediate, and high pressure compressors. Some key points are that it uses a three-shaft design for improved efficiency, has a high bypass ratio for lower emissions, and is a bleedless design that improves fuel efficiency for the aircraft. The engine incorporates advanced materials and technologies like hollow fan blades to improve performance and reduce weight.
Internal Combustion Engine Part - 1
The document discusses various types of heat engines and internal combustion engines. It provides details on reciprocating engines, gas turbines, steam turbines, and compares internal combustion engines to external combustion engines. It describes the working of 4-stroke spark ignition and compression ignition engines. The key advantages of internal combustion engines are their mechanical simplicity, ability to use high working fluid temperatures, and better power-to-weight ratio compared to steam turbines. Common applications mentioned are automobiles, motorcycles, ships, aircrafts and locomotives. The document also discusses engine components, classification of internal combustion engines, performance parameters, and thermodynamic cycles like Otto, Diesel and Carnot cycles.
Gas turbine and Jet Propulsion
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.
Trent 1000 presentation
The Trent 1000 engine is a three-shaft turbofan engine used on the Boeing 787 Dreamliner. It has low pressure, intermediate pressure, and high pressure compressors driven by separate turbines through coaxial shafts. The three-shaft design allows for improved engine efficiency and operability compared to earlier two-shaft designs. Key features include a hollow titanium fan blade and an intermediate pressure power take-off that reduces fuel burn and noise.
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1. **Synchronous TDM**: In synchronous TDM, time slots are pre-assigned to each signal, regardless of whether the signal has data to transmit or not. This can lead to inefficiencies if some time slots remain empty due to the absence of data.
2. **Asynchronous TDM (or Statistical TDM)**: Asynchronous TDM addresses the inefficiencies of synchronous TDM by allocating time slots dynamically based on the presence of data. Time slots are assigned only when there is data to transmit, which optimizes the use of the communication channel.
### Applications of TDM
- **Telecommunications**: TDM is extensively used in telecommunication systems, such as in T1 and E1 lines, where multiple telephone calls are transmitted over a single line by assigning each call to a specific time slot.
- **Digital Audio and Video Broadcasting**: TDM is used in broadcasting systems to transmit multiple audio or video streams over a single channel, ensuring efficient use of bandwidth.
- **Computer Networks**: TDM is used in network protocols and systems to manage the transmission of data from multiple sources over a single network medium.
### Advantages of TDM
- **Efficient Use of Bandwidth**: TDM all
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