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Comparative performance study of different configurations of organic Rankine cycle using low-grade waste heat for power generation

机译：利用低级余热发电的有机朗肯循环不同构型的比较性能研究

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摘要

This paper aims at analyzing the feasibility of a waste heat recovery power generation plant based on parametric optimization and performance analysis using different organic Rankine cycle configurations and heat source temperature conditions with working fluid R-12, R-123, R-134a, and R-717. A parametric optimization of turbine inlet temperature(TIT) was performed to obtain the irreversibility rate, system efficiency, availability ratio, turbine work output, system mass flow rate, second-law efficiency, and turbine outlet quality, along the saturated vapor line and also on superheating at an inlet pressure of 2.50 MP in basic as well as regenerative organic Rankine cycle. The calculated results reveal that selection of a basic organic Rankine cycle using R-123 as working fluid gives the maximum system efficiency, turbine work output, second-law efficiency, availability ratio with minimum system irreversibility rate and system mass flow rate up to a TIT of 150 degrees C and appears to be a choice system for generation of power by utilizing the flue gas waste heat of thermal power plants and above 150 degrees C the regenerative superheat organic Rankine cycle configuration using R 123 as working fluid gives the same results.
机译：本文旨在基于参数优化和性能分析，使用不同的有机朗肯循环配置和热源温度条件以及工作流体R-12，R-123，R-134a和R来分析废热回收发电厂的可行性。 -717。对涡轮机入口温度（TIT）进行了参数优化，以获取沿饱和蒸汽线的不可逆率，系统效率，可用率，涡轮机功输出，系统质量流量，二次律效率和涡轮机出口质量。在基本以及再生有机朗肯循环中，在入口压力为2.50 MP时过热。计算结果表明，使用R-123作为工作流体来选择基本的有机朗肯循环可提供最大的系统效率，涡轮功输出，二次律效率，可用性比，同时系统不可逆性最小，系统质量流量最高可达到TIT温度为150摄氏度，并且似乎是利用火力发电厂的烟气余热发电的一种选择系统，而在150摄氏度以上，使用R 123作为工作流体的再生过热有机朗肯循环配置也能获得相同的结果。

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