以船舶尾气为驱动热源的吸附制冰系统性能研究

为了提高单位质量吸附剂的吸附量,缩小吸附床的体积,并选择合适的化学吸附制冷工质对,在分析国内外吸附制冷系统研究进展的基础上,采用了多发生器吸附制冰系统。对系统中的关键部件吸附床内的单元管传热性能进行了研究,对单元管传热热阻对系统的影响进行了理论分析,同时还对减小各部分热阻的方法进行了探讨,基于此,对多发生器制冰系统进行了制冷性能研究。结果表明,烟气与单元管的对流换热热阻占总热阻的89%,而船舶尾气余热吸附制冰系统的性能参数可达25%。

Performance of Adsorption Ice-Making System Driven by Ship Exhaust

In order to improve the adsorption capacity per unit mass of adsorbent,reduce bed volume,and choose chemical adsorption as refrigerant,the multi-generator absorption ice-making system was in troduced.Then the heat transfer performance of unit pipe in the adsorbent bed was researched,and the sys tem influence of unit pipe heat transfer resistance was also analyzed.Besides,some methods of reducing the thermal resistance of each part were discussed.The results show that the percentage of thermal resis tance of convective heat transfer is 89%,while heat performance parameter of the adsorption ice-making system driven by ship exhaust is up to 25%.