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首页> 外文期刊>Journal of Power and Energy Engineering >Optimum Efficiency Analysis of Regenerative Cycle with Feed Water Heaters
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Optimum Efficiency Analysis of Regenerative Cycle with Feed Water Heaters

机译：饲料热加热器再生循环的最佳效率分析

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摘要

The optimum efficiency and net work of the regenerative cycle with turbine extractions, using steam as the working fluid, have been simulated and analyzed. The cycle is simulated with until five feed water heaters in a numeric method and can be easily used in solar power plants. The general expression for each component is realized through the balance of energy, collectors, turbine, condenser, pumps and feed water heaters. One analytical method is developed considering constants of the difference of enthalpy through feed water heaters as also between them. The results show that the analytical method is unsatisfactory because the optimum efficiency depends on some parameters such as evaporating temperature and superheating temperature showing in numeric method. The increase of optimum efficiency increases when the number of feed water is increased as well as evaporating and superheating temperature, for the net work presents a maximum value along evaporating temperature, decreasing with number of feed water heaters and increasing when the superheating temperature is increased. The pressure of extraction of turbine is also analyzed, varying about 5% along of evaporation temperature. This analysis is important to motivate the use in solar plants that it is considerate in this paper, just analyzing the cycle.
机译：已经模拟和分析了使用蒸汽作为工作流体的涡轮机提取的再生循环的最佳效率和净功率。循环被模拟，直到数字方法中的五个进料热加热器，并且可以在太阳能发电厂中轻松使用。通过能量，收集器，涡轮机，冷凝器，泵和供给热水器的平衡来实现每个组件的一般表达。考虑到植入水加热器的常数常见的常量开发了一种分析方法。结果表明，分析方法是不令人满意的，因为最佳效率取决于一些参数，例如蒸发温度和在数字方法中显示出的过热温度。当进料水的数量增加以及蒸发和过热温度的增加时，最佳效率的增加增加，对于净工作，沿蒸发温度呈现最大值，随着进料热量的数量减小，随着超热温度的增加而增加。还分析了涡轮机的提取压力，沿蒸发温度变化约5％。这种分析对于激励在太阳能厂中的使用非常重要，即在本文中考虑，只是分析了循环。

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