摘要
针对由ORC发电冷却单元与常规冷却单元串联而成的低温热流体的两级串联冷却系统,研究如何确定两级间热流体的中间冷却温度。以系统净输出功率最大为目标,分析了热流体温度、冷却目标温度、热流体流量及环境湿球温度对最优中间冷却温度的影响。结果表明:最优中间冷却温度随热流体温度和环境湿球温度的升高而增大;热流体流量和冷却目标温度的改变基本上对最优中间冷却温度无影响作用。
This paper established a serial two-stage cooling system of low-temperature thermal fluid,which is composed of ORC power generation cooling unit and conventional cooling unit,and studied how to determine the intermediate cooling temperature of thermal fluid.By calculating the thermal process of the system,taking the maximum net output power as the objective function,and analyzing the effect of thermal fluid temperature,cooling output temperature,thermal fluid flow rate and ambient wet bulb temperature on the optimal intermediate cooling temperature.The results show that the optimal intermediate cooling temperature increases with the higher thermal fluid temperature and ambient wet bulb temperature.Furthermore,it’s found that thermal fluid flow rate and cooling output temperature have no influence on the optimal intermediate cooling temperature.
作者
许琳
雷波
袁中原
Xu Lin;Lei Bo;Yuan Zhongyuan(School of Mechanical Engineering,Southwest Jiaotong University,Chengdu,610031)
出处
《制冷与空调（四川）》
2019年第6期588-591,共4页
Refrigeration and Air Conditioning
基金
四川省科技计划项目（2018GZ0160）：工业低温余热发电关键技术研究与成套装备应用示范
关键词
低温热流体
两级串联冷却系统
中间冷却温度
low-temperature thermal fluid
serial two-stage cooling system
intermediate cooling temperature
