回热式户用冰蓄冷空调系统特性
Characteristics of regenerative household ice storage air conditioning systems
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。
Abstract：
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 ℃, and the evaporating temperature is increased approximately by 3 ℃ 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.
Keywords:ice storage, household air conditioning, regeneration, external ice-melting, energy storage