CAJ | 학술논문

在动坐标系下对顺流式水-空气热、湿交换处理系统进行研究,确定雾化水滴直径与喷水压力之间的关系曲线,运用相对速度的概念建立喷水室两相流模型及热湿交换第一效率关系式.理论分析与实验数据表明,压力对热湿交换效率关系式影响较大.当喷水压力小于157 Pa时,实验结果与理论值吻合较好,误差小于6%;当喷水压力大于157 Pa时,实验结果与理论值误差较大.在该压力下对热湿交换第一效率关系式进行拟合修正,修正后实验结果与理论值误差在7%以内.
재동좌표계하대순류식수-공기열、습교환처리계통진행연구,학정무화수적직경여분수압력지간적관계곡선,운용상대속도적개념건립분수실량상류모형급열습교환제일효솔관계식.이론분석여실험수거표명,압력대열습교환효솔관계식영향교대.당분수압력소우157 Pa시,실험결과여이론치문합교호,오차소우6%;당분수압력대우157 Pa시,실험결과여이론치오차교대.재해압력하대열습교환제일효솔관계식진행의합수정,수정후실험결과여이론치오차재7%이내.
The heat and moisture exchange system through downstream water-air processing in the dynamic coordinate is studied, and the relationship between fogged drop diameter and water jet pressure is determined. By applying the concept of relative speed, a two phase model in the spray chamber and the equation with maximum effectiveness of heat and moisture exchange are established. It has been proved by theoretical analysis and the experimental data that pressure has considerable effect on the equation of heat and moisture exchange. When the hydraulic pressure is less than 157 Pa, experimental results fit well with theoretical results with error less than 6%. When the hydraulic pressure is more than 157 Pa, great error is observed. To reduce this error, corrections are made for the equation with the maximum effectiveness when hydraulic pressure is 157 Pa. After correction, the experimental result is in good agreement with the theoretical value with the error within 7%.