摘要
R4 10A与R4 0 4A都有较低的临界温度。因此 ,当冷凝温度升高时 ,系统的制冷量与能效比都显著地减少。不论通过外部循环过冷或经济器过冷 ,都可显著地提高制冷能力和性能系数COP。本文对蒸发温度为 - 4 0℃和 +
Both R410A and R404A have lower critical temperature.Comsequently,the refrigerrating capacity and energy efficiency of system decrdase substantially when condensing temperature rises.Sub-cooling,either by extemal cycle or by super-feed,greatly improves the refrigerating capacity and the coefficient of performance.Comparisons have been made at two evaporating temperatures(-40 ℃and+2 ℃)and at different condensing temperatures.
出处
《制冷与空调》
2002年第1期64-68,共5页
Refrigeration and Air-Conditioning
