郝红,张于峰,王宏伟,尚少文
HAO Hong1,2,ZHANG Yu-feng1,WANG Hong-wei2

• 1:天津大学
• 2:沈阳建筑大学

摘要(Abstract)：

建立除湿转轮二维传热传质模型,模型中考虑了基体材料蓄热对传热传质的影响,对模型的可靠性进行了验证,模拟误差均在10%以内,满足精度要求,并对不同影响因素下,变风量运行时转轮的瞬态响应性能进行了模拟分析。结果表明:处理空气进口湿度越大温度越低,再生空气进口温度越大湿度越低,处理空气出口湿度响应变化的差值越大,温度响应变化的差值越大;除湿侧风速突然增大时,出口温湿度的响应时间明显小于风速突然减小时的响应时间。计算表明:变风量运行方式可使系统显热负荷减少20%左右,若附加调节措施,可进一步节省显热负荷13%左右。
Two-dimensional mathematical model of rotary desiccant wheel is established by considering affection of basis material thermal storage to heat and mass transfer.The numerical curve exhibits very good agreement with experimental results,and simulation error is less than 10%.The transient responses of rotary desiccant wheels were simulated under step change of process air volume with different affecting factors.Results showed that With process inlet humidity ratio increased and temperature decreased,and regeneration inlet temperature increased and humidity ratio decreased,difference of new stable value to initial value of process outlet humidity ratio increased and temperature increased.Response time of step increase to process air volume was less than that of step decrease.The analog results also told us that the sensible heat load could be reduced 20% through variable air volume,and could be reduced another 13% with changing regeneration temperature or flow rate.

关键词(KeyWords)： 除湿转轮;瞬态响应;影响因素;显热负荷
desiccant wheel;transient response;affecting factors;sensible heat load

Abstract:

Keywords:

基金项目(Foundation): 辽宁省教育厅基金项目和(2008Z177);; 建设部基金项目和(2009-K1-25)

作者(Author): 郝红,张于峰,王宏伟,尚少文
HAO Hong1,2,ZHANG Yu-feng1,WANG Hong-wei2

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