CAJ | 학술논문

基于ε-NTU形方法，建立了百叶窗翅片微通道换热器的数值模型。模型计算值与实验结果一致性较好，偏差在7％以内。研究了翅片参数对于换热器性能的影响，结果表明翅片间距对于换热量的影响较大，减小翅片间距可增加17％的换热量；相同的迎风面积和翅化比下，增大翅片高度对于换热器性能影响不大，但可以降低20％的换热器成本。
기우ε-NTU형방법，건립료백협창시편미통도환열기적수치모형。모형계산치여실험결과일치성교호，편차재7％이내。연구료시편삼수대우환열기성능적영향，결과표명시편간거대우환열량적영향교대，감소시편간거가증가17％적환열량；상동적영풍면적화시화비하，증대시편고도대우환열기성능영향불대，단가이강저20％적환열기성본。
Based on ε-NTU method, a numerical model of microchannel louver fin heat exhanger has been established. Simulation Model is in good agreement with the experimental results, with deviation of less than 7%. The effect of fin parameter on the heat transfer has been studied, and the results show that fin pitch have a great effect on the heat transfer rate, decreasing the fin pitch can improve the heat transfer rate by 17%. Increasing the fin height has little effect on the heat exchanger performance, but it can decease the heat exhanger cost by 20%.