OPTIMAL SIMULATION METHOD OF HEAT EXCHANGE AREA DESIGN FOR DUAL-STAGE-CIRCLE HIGH TEMPERATURE HEAT PUMP
Aiming at the COP of high temperature heat pump (HTHP) as optimal target, this paper presents an optimal design method by simulation of heat exchange area for dual-stage-circle HTHP with heating capability, water velocities and pressure drops of water-side both in the condenser and evaporator, discharge temperature of compressor as constraint conditions. This method involves three processes, they are optimal design for total heat exchange area of the condenser and evaporator (Atotal), optimal design for area ratio of the condenser and evaporator (AR), and optimal design for matching of the regenerator heat exchange area and AR. By establishing numerical simulation design tool for dual-stage-circle HTHP, the author finishes a case study with this tool. Results show that the optimal calculation is an effective solution to the mismatch between configuration parameters of single components (such as condenser, evaporator, regenerator, compressor, throttling plant and etc.) operating in the HTHP and their preliminary design value. With constant heating performance, optimal design indicates an obvious effect with a decrease of 13％ e on total heat exchange area of exchangers and a decrease of35.5％ on total number of evaporating heat exchange tubes.
high temperature heat pump heat exchange area optimal design simulation performance
Tianyi ZHAO Jili ZHANG Zhongjian LI Yajun LU
School of Municipal & Environmental Engineering, Harbin Institute of Technology Harbin, 150090, China
国际会议
The 22nd International Congress of Refrigeration(第22届国际制冷大会)
北京
英文
2007-08-21（万方平台首次上网日期，不代表论文的发表时间）