摘要
根据户用空调系统使用时间不固定的特点,利用回热理论,研发了回热式户用冰蓄冷空调系统。分析了冰层厚度、初始蒸发温度、蓄冷管直径对蓄冷过程的影响;对研制的回热式户用冰蓄冷空调系统在蓄冷运行、制冷蓄冷同时运行模式下进行了性能测试,并与不带回热器系统进行比较。实验结果表明:使用回热器后,蓄冷运行时,吸气温度提高近25℃;蒸发温度提高近3℃;解决了吸气管外结霜、结冰问题;COP提高了3.6%。该系统的制冷蓄冷同时运行模式,解决了家用空调使用时间不固定的问题,起到了移峰填谷的作用。
Considering the irregular work schedule of household air conditioning system, according to the theory of regeneration, develops a regenerative household ice storage air conditioning system. Analyses the influence of factors including ice thickness, initial evaporation temperature and hold-over coil diameter on the cold storage process. Tests the performances of the developed air conditioning system on conditions of cold storage mode and refrigeration-cold storage mode, respectively, and compares the test results with those of traditional air conditioning systems. The results show that the regenerator contributes to the solution to anti-frosting and anti-freezing of outside suction tube. The corresponding suction temperature of compressor is increased approximately by 25 ~C, and the evaporating temperature is increased approximately by 3 ~C by applying regenerator. The resultant COP is improved by 3.6%. The system with refrigeration-cold storage mode solves the problem of unfixed service time for household air conditioning, which plays an important role in peak load shifting strategy.
出处
《暖通空调》
北大核心
2015年第6期92-96,35,共6页
Heating Ventilating & Air Conditioning
基金
上海市自然科学基金资助项目(编号:14ZR1429000)
国家科技支撑计划项目(编号:2015BAD19B0222)
关键词
冰蓄冷
户用空调
回热
外融冰
蓄能
ice storage, household air conditioning, regeneration, external ice-melting, energy storage
