摘要
在有机工质双循环朗肯发电系统中,循环工质的性质对电能输出量和低温热能的转化效率有重要影响。该研究设计搭建试验台,并对R142b、R152a和R134a 3种典型循环工质进行对比实验,分析压力、液体密度、潜热、气体比容、膨胀过程焓差等因素对低温热能发电系统的影响,并对系统优化和循环工质的选择提供依据。
The influence of characteristic of the organic working fluids on power output and energy conversion efficiency is important in the low-temperature heat energy conversion system using organic Rankine cycles （ORCs）. An experimental unit was designed and constructed, and three kinds of typical working fluids, R142b, R152a ~ R134a were tested and compared to analyze the effect of pressure, liquid density, latent heat, specific ,,-!ume of gas and expanding enthalpy drop etc. on power generation system using low temperature thermal energy, and provide the guideline for optimization of energy conversion system and selection of working fluid.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2014年第12期2514-2518,共5页
Acta Energiae Solaris Sinica
基金
国家重点基础研究发展(973)计划(2009CB219907)
关键词
朗肯循环
有机工质
低温热能
发电
Rankine cycles
organic fluid
low-temperature thermal energy
power generation
