流体机械
流體機械
류체궤계
FLUID MACHINERY
2014年
2期
67-71,82
,共6页
溶液除湿%热质耦合%理论分析%数值模拟
溶液除濕%熱質耦閤%理論分析%數值模擬
용액제습%열질우합%이론분석%수치모의
liquid desiccant dehumidification%complex heat and mass transfer%theoretical analyze%numerical simulation
从理论上分析了溶液除湿过程中传质过程和传热过程之间的耦合关系,建立了相应的数学模型,并对实际的溶液除湿过程进行了数值模拟。结果表明:传质过程对传热过程的影响主要体现在两方面:一是传质通量携带的焓对传热过程的影响,二是水蒸气变成水释放汽化潜热对传热过程的影响,其中汽化潜热的影响较大。而传热过程对传质过程的影响主要体现在温度对传质系数的影响。
從理論上分析瞭溶液除濕過程中傳質過程和傳熱過程之間的耦閤關繫,建立瞭相應的數學模型,併對實際的溶液除濕過程進行瞭數值模擬。結果錶明:傳質過程對傳熱過程的影響主要體現在兩方麵:一是傳質通量攜帶的焓對傳熱過程的影響,二是水蒸氣變成水釋放汽化潛熱對傳熱過程的影響,其中汽化潛熱的影響較大。而傳熱過程對傳質過程的影響主要體現在溫度對傳質繫數的影響。
종이론상분석료용액제습과정중전질과정화전열과정지간적우합관계,건립료상응적수학모형,병대실제적용액제습과정진행료수치모의。결과표명:전질과정대전열과정적영향주요체현재량방면:일시전질통량휴대적함대전열과정적영향,이시수증기변성수석방기화잠열대전열과정적영향,기중기화잠열적영향교대。이전열과정대전질과정적영향주요체현재온도대전질계수적영향。
Coupling relationship between the mass transfer process and heat transfer processes in liquid desiccant dehumidifica -tion process is analyzed theoretically , the physical and mathematical model is developed , and simulates the actual liquid desic-cant dehumidification process .The result shows that:the influence of mass transfer process to the heat transfer process is mainly embodied in two aspects:first, the enthalpy carried by the mass flux impact on the heat transfer process , the second is the water vapor turns into water release of latent heat of vaporization influence on the heat transfer process , between them, the latent heat of vaporization is affects obviously .The influence of heat transfer process to the mass transfer process is mainly embodied in temper -ature.