三套管蓄能型热泵的制冷实验

摘要

To perceive cooling behaviors of the triple-sleeve energy storage exchanger(TRESE)based energy storage heat pump system,a 2,HP prototype was manufactured and run to manifest the cooling performance of the novel sys-tem. Experiments included four operation modes under space cooling state. Results reflect that cooling cycle COP is from 2.4 to 3.7 when dry bulb temperature is lower than 25,℃ during nighttime. COP of TRESE cooling combined with air source heat pump is from 2.4 to 2.9 as outdoor dry bulb temperature is from 35 to 43,℃,which rises by 15%more than that of space cooling by air source heat pump only. When flow rate of cold water through TRESE is 40,L/h,the cooling rate of TRESE in combined cooling is 7.7% with scarcely wave,even with ambient tempera-ture changes. If opening all three TRESEs,the cooling rate of TRESE in combined cooling will be increased up to 23%.%为考察三套管蓄能型热泵(TRESE)的制冷性能,对一台2,HP样机的4种制冷模式分别进行了实验研究.实验结果表明,夜间室外干球温度低于25,℃时,三套管蓄能型热泵的周期制冷COP较高,其值在2.4~3.7之间;三套管蓄能器与空气源热泵联合供冷模式的COP较高,在室外干球温度为35~43,℃的范围内,其值在2.4~2.9之间,较空气源热泵单独供冷模式的COP提高了15%;当三套管蓄能器供冷水流量为40,L/h时,联合供冷期间三套管蓄能器的供冷百分比稳定在7.7%左右,受室外气温的影响不大;若将样机中3组三套管蓄能器同时开启,则三套管蓄能器的供冷率在联合供冷中的比例可提升至23%.