【作者】 腊栋； 代彦军； 蒋祚贤； 蔡世佳；

【Author】 LA Dong, DAI Yanjun, JIANG Zuoxian, CAI Shijia (Institute of Refrigeration and Cryogenics, Shanghai Jiao Tong University, Shanghai 200240, Shanghai, China)

【机构】 上海交通大学制冷与低温工程研究所；

【摘要】 建立了焓轮式全热回收器的数学模型,并利用此模型研究了硅胶、氯化锂和硅胶-氯化锂复合材料作为吸湿剂时,转轮转速、转轮厚度和迎面风速的变化对回收器焓回收效率的影响。结果表明,对于焓轮式全热回收器,复合干燥剂与硅胶和氯化锂相比具有更大优越性,且存在最佳的转轮转速、转轮厚度和迎面风速,在计算条件下,对应各参数值分别为:12r·min-1,100mm和1.2m·s-1。更多还原

【Abstract】 The Mathematical model of enthalpy recovery wheel is built. Based on this model, the effects of wheel thickness, wheel rotational speed and air velocity on the enthalpy recovery efficiency of enthalpy wheel are investigated, while four different desiccants, namely silica gel, lithium chloride and silica gel-lithium chloride composite, are used as desiccant material. The results show that, silica gel-lithium chloride composite desiccant is the first choice for enthalpy recovery wheel comparing with silica gel and lithium chloride. And the enthalpy recovery efficiency increases with rotation speed, wheel thickness and air velocity under low values and decreases with them under high values. This indicates that there exist optimum values for all of them, which are 12 r·min-1, 100 mm and 1.2 m·s-1 respectively under calculation conditions.更多还原