用固定节点等量对流混合模型分析自然循环太阳能热水系统

ANALYSISING A SOLAR WATER HEATING SYSTEM WITH NATURAL CIRCULATION BY USING THE FIXED-NODE EQUALLY-CONVECTED-M1XED MODEL

由目前模拟自然循环太阳能热水系统的两个最先进的模型——Morrison—Braun的固定节点无对流混合模型和变体积充分对流混合模型出发,本文结合两者的优点而摒弃其不足,建立了更为精确,更能广泛应用的固定节点等量对流混合模型。实验结果验证了模型的正确性和精度。

Based on the two up-to-date best models that simulate the performance of a solar water heating system with natural circulation-Morrison-Braun's fixed-node nonconvection-mixed model and variable volume full-convection-mixed model,a fixed-node equal segment convection mixed model was accepted.Experimental results show the good agreement with calculated value.