Steam Engine Essay

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A steam engine is a heaSteam engines are external combustion engines,[4] where the working fluid is separate from the combustion products. Non-combustion heat sources such as solar power, nuclear power or geothermal energy may be used. The ideal thermodynamic cycle used to analyze this process is called the Rankine cycle. In the cycle water is heated into steam in a boiler until it reaches a high pressure. When expanded through pistons or turbines, mechanical work is done. The reduced-pressure steam is then condensed and pumped back into the boiler.t engine that performs mechanical work using steam as its working fluid The Rankine cycle is a mathematical model that is used to predict the performance ofsteam engines. The Rankine cycle is an idealised thermodynamic cycle of a heat enginethat converts heat into mechanical work. The heat is supplied externally to a closed loop, which usually uses water as the working fluid. The Rankine cycle, in the form of steam engines generates about 90% of all electric power used throughout the world,[1] including virtually all solar thermal, biomass, coal and nuclear power plants. It is named after William John Macquorn Rankine, a Scottish polymath and Glasgow University professor. The Rankine cycle most closely describes the process by which steam-operated heat engines most commonly found in power generation plantsgenerate power. The two most common heating processes used in these power plants are nuclear fission and the combustion of fossil fuels such as coal, natural gas, and oil. The Rankine cycle is sometimes referred to as a practical Carnot cyclebecause, when an efficient turbine is used, the TS diagram begins to resemble the Carnot cycle. The main difference is that heat addition (in the boiler) and rejection (in the condenser) are isobaric in the Rankine cycle and isothermal in the theoretical Carnot cycle. A pump is
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