Yin Caihong, Wu Ronghua, Zhan Hao, Yu Hao, Liu Changqing
Jiaozhou Bureau of Science, Technology and Industrial Information, Qingdao, Shandong 266399, China.
Qingdao Kechuang Blue New Energy Co., Ltd, Qingdao, Shandong 266300, China.
Comput Intell Neurosci. 2022 Aug 4;2022:8906838. doi: 10.1155/2022/8906838. eCollection 2022.
Aiming at the performance deterioration of air source heat pump at low temperature in cold area, an air source heat pump system with sodium chloride aqueous solution as low temperature phase change heat storage material was proposed to increase the air inlet temperature of the unit under low temperature conditions and improve the low temperature performance of the heat pump unit. The system form, unit energy consumption model, and economic model were given, and the operating economy of the traditional electric auxiliary heat air source heat pump system and the phase change heat storage air source heat pump system were compared through computational intelligence powered methods. On this basis, the operation economy of the heat pump system using different concentrations of sodium chloride solution as the heat storage material was simulated and optimized, and the operation efficiency and energy-saving performance of the system were analyzed by taking an actual residential building in a cold area as an example. The simulation results showed that the Heating Seasonal Performance Factor (HSPF) of the heat pump system using 8.5% sodium chloride aqueous solution as the heat storage material is 2.24, and the HSPF of the traditional electric auxiliary heat pump system is 1.83. Compared with the traditional electric auxiliary heat pump system, the phase change heat storage heat pump system saves heating energy consumption by 19.6% and defrosting energy consumption by 38.8%. The heat pump system using 10% sodium chloride aqueous solution as the heat storage material has the best operating economy, and the system HSPF is 2.33, which saves heating energy consumption by 23.2% and defrosting energy consumption by 34% compared with the traditional heat pump system. The operation condition of phase change heat storage air source heat pump system is stable, and the system performance is significantly improved.
针对寒冷地区空气源热泵在低温下性能恶化的问题，提出了一种以氯化钠水溶液为低温相变蓄热材料的空气源热泵系统，以提高机组在低温条件下的进气温度，改善热泵机组的低温性能。给出了系统形式、机组能耗模型和经济模型，并通过智能计算方法比较了传统电辅助加热空气源热泵系统和相变蓄热空气源热泵系统的运行经济性。在此基础上，模拟优化了以不同浓度氯化钠溶液为蓄热材料的热泵系统的运行经济性，并以寒冷地区某实际住宅建筑为例分析了系统的运行效率和节能性能。模拟结果表明，以8.5%氯化钠水溶液为蓄热材料的热泵系统的供暖季节性能系数（HSPF）为2.24，传统电辅助热泵系统的HSPF为1.83。与传统电辅助热泵系统相比，相变蓄热热泵系统节省供暖能耗19.6%，除霜能耗38.8%。以10%氯化钠水溶液为蓄热材料的热泵系统运行经济性最佳，系统HSPF为2.33，与传统热泵系统相比，节省供暖能耗23.2%，除霜能耗34%。相变蓄热空气源热泵系统运行工况稳定，系统性能显著提高。
