摘要
本文对CO2热力学系统在不同零上人工造雪方法中的应用进行理论和实验研究,并对比各种方法的性能。通过对比分析,指出采用CO2-水复叠式蒸气压缩循环的真空制冰系统和采用跨临界CO2蒸气压缩循环的有限制冷空间造雪系统的能耗分别比采用亚临界CO2蒸气压缩循环的冷却表面制冰系统低50%和30%。采用跨临界CO2蒸气压缩循环的有限制冷空间造雪系统可以用更低的能耗实现更好的雪质,还能在满足制冷需求的同时进行供热,实现高效的能源综合利用。
The theoretical and experimental studies are presented on the thermodynamic systems using carbon dioxide for different snowmaking methods at the ambient temperature of above 0℃.Based on the comparison of the performances among different methods,50%and 30%lower energy consumption of the vacuum ice making system using the carbon dioxide and water cascade vapor compression cycle and the indoor snowmaking system with limited space using transcritical carbon dioxide vapor compression cycle is respectively obtained when compared with that of the ice making system with cooling surface using subcritical carbon dioxide vapor compression cycle.The indoor snowmaking system with limited space using transcritical carbon dioxide vapor compression cycle results higher snow quality and lower energy consumption.In addition,the simultaneous production of heat and cold energy enables efficient integral energy utilization.
作者
王冠邦
张信荣
WANG Guanbang;ZHANG Xinrong(College of Engineering,Peking University,Beijing 100871,China)
出处
《制冷技术》
2020年第2期38-45,共8页
Chinese Journal of Refrigeration Technology
基金
国家自然科学基金(No.51776002)。
关键词
CO2
人工造雪
热力学系统
能耗
Carbon dioxide
Snowmaking
Thermodynamic system
Energy consumption
