工质性质对有机朗肯循环低温发电系统影响的实验研究  

IMPACT OF WORKING FLUID ON LOW-TEMPERATURE ENERGY CONVERSION SYSTEM USING ORCS

作　　者：魏莉莉[1,2] 张于峰[2] 穆永超[2] 杨晓晨[2] 马洪亭[2] 郭晓娟[3] 

机构地区：[1]宁波工程学院建筑工程学院,宁波315016 [2]天津大学环境科学与工程学院,天津300072 [3]东莞理工学院化学与环境工程学院,东莞523808

出　　处：《太阳能学报》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)

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.

关 键 词：朗肯循环 有机工质 低温热能 发电 

分 类 号：X382.1[环境科学与工程—环境工程]