中文 English Contacts
 

GREATLAB在International Journal of Refrigeration发表论文(2020年11月26日)

由卿淳、高鹏(上海理工大学,GREATLAB博士后)、张春路(通讯作者)撰写的论文Thermodynamic analysis on feasible operating region of two-stage hybrid absorption-compression heat pump cycles在International Journal of Refrigeration 2021年第121卷在线发表。论文结合实际氨压缩机的运行工况范围,对以氨-水为工质对的压缩-吸收复合高温热泵循环的升温可行域进行了数值研究,并且对比了三种两级循环的升温可行域,对于该类高温热泵循环的实际应用具有指导意义。

论文链接

论文摘要:

Ammonia-water hybrid absorption-compression heat pump (HACHP) based on Osenbrück cycle is a promising high-temperature heating technology. However, in the case of large temperature rise, the HACHP is faced with the problem that the compressor discharge temperature is too high, which greatly limits its application. In order to solve this problem, this paper introduces three two-stage HACHP cycles and thermodynamic analysis is conducted respectively. Results show that under the constraints of high pressure of 5000 kPa, compressor discharge temperature of 180°C and vapor water mass fraction of 5%, the single-stage HACHP cycle cannot meet the heating requirement with the temperature lift of 40K, while three two-stage HACHP cycles can easily meet the needs of heating with the temperature lift of 40K. When HACHP with flash tank intercooler is especially used, the heating with the temperature lift of 50K can be achieved. Furthermore, this paper gives some typical combinations of ammonia mass fraction and circulation ratio for realizing high-temperature heating.

    
Back