【摘要】 针对空气源热泵在低温高湿环境下蒸发器结霜导致系统性能大幅衰减问题，提出一种利用太阳能热水蓄热来延缓蒸发器结霜的空气源热泵干燥系统，并以木香为干燥物料对系统性能进行对比试验.结果表明太阳能热水蓄热抑霜可显著提升干燥系统在低温环境下的运行稳定性与干燥效率；在平均环境温度-3.96℃工况下，系统的平均制热功率较传统空气源热泵干燥系统提高82.78%,制热性能系数(coefficient of performance, COP)由1.00提升至1.83;在全干燥周期内，系统达到目标干燥温度所需时间较传统热泵干燥系统缩短18.47%.更多还原

【Abstract】 To address the significant performance degradation of air-source heat pumps caused by evaporator frosting under low-temperature and high-humidity conditions, an air-source heat pump drying system incorporating solar hot water thermal storage was proposed to delay evaporator frosting.Comparative experiments were conducted using Inula helenium as the drying material.The results indicate that the solar hot water thermal storage frost-suppression effectively enhances the operational stability and drying efficiency of the system under low-temperature conditions.At an average ambient temperature of -3.96 ℃,the average heating capacity of the proposed system increased by 82.78% compared with that of a conventional air-source heat pump drying system, while the coefficient of performance(COP) increased from 1.00 to 1.83.Moreover, over the entire drying cycle, the time required for the system to reach the target drying temperature was reduced by 18.47% relative to the conventional heat pump drying system.更多还原