Formula for refrigerating capacity of two - stage compression refrigeration cycle based on piston displacement of high pressure stage 基于高压级活塞排量的双级压缩制冷循环制冷量计算式
According to the thermodynamics theory of vapor compression refrigeration cycle , hfc - r134a is chosen as refrigerant fluid and the thermodynamics calculation of refrigeration system is accomplished , which is based on the table of r134a thermodynamics characteristics and estimate of portable refrigerator ' s calorific burthen 本文根据蒸汽压缩式制冷循环的热力学原理,从小冷量、小体积的便携式冷藏箱的热负荷计算出发,以所选用制冷剂( r134a )的热力性质表为依据,进行了制冷系统的基本热力计算。
The system adopts several technologies , such as recovery of condensing heat , thermal storage and heat pump , etc . it can synthetically utilize energy of compression refrigeration cycle and satisfy the need of air conditioning and domestic hot water simultaneously . at the same time , its application will improve some problems of the conventional system ( an air conditioner and a hot water heater ) , such as large consuming energy , wasting energy and thermal pollution to environment . therefore , hpacdhws is obviously in favor of development economy , environment and society 该设备能全年综合利用压缩式制冷循环的能量(冬季运行要依靠辅助热源) ,并融合了热回收、蓄热和热泵等多项技术,能够同时满足建筑物内空调和生活热水的需求,缓解了常规系统(常规空调器+热水器)能耗大、能源浪费和环境热污染等问题,具有明显的经济效益、环境效益和社会效益。