摘要
以送风式空调的制冷工况为研究对象,通过理论分析和试验测试的方法,分析了该空调在室内环境湿度和风量发生变化时,机组蒸发压力、冷凝压力、过热度、过冷度、吸气比容和制冷剂循环流量的变化特性.研究结果表明:当蒸发器负荷减小时,蒸发压力降低的幅度大于冷凝压力降低的幅度,输气系数减小;吸气比容增加,制冷剂循环流量减小,系统的制冷能力降低.
Taking an air-conditioning under cooling condition as research object,the variation characteristics of evaporating and condensing pressure,superheat temperature,subcooling temperature,suction volume and refrigerant circulation flow were investigated based on theoretical and experimental method with varied indoor environment humidity and airflow.The results show that when the evaporator load is decreased,the reducing amplitude of evaporating pressure is greater than that of condensing pressure to result in the decreasing of gas transmission coefficient.When the suction volume increases,the refrigerant circulation flow is reduced to lead to the declining of refrigerating capacity of system.
出处
《江苏大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2014年第6期663-666,共4页
Journal of Jiangsu University：Natural Science Edition
基金
江西省自然科学基金资助项目(20121BDH80004)
关键词
送风式空调机组
制冷
变工况
试验研究
制冷能力
air-conditioning units
refrigerating
variable condition
experimental research
refrigerating capacity
