The results from this paper provide a reference for the thermodynamic performance evaluation on the basic heat transfer process through a duct and enhancement in double sides of duct.
结果和方法对进一步完善基本对流换热过程的热力学评价具有一定的意义，同时为换热管双侧强化传热时性能的评价提供理论基础。
The substructure boundary element-transfer matrix method is presented for duct system of greater length or mufflers with complex geometry.
对于较长或具有复杂形状的管道及消声器，提出了子结构边界元——传递关系矩阵法。
On the base of both consideration of heat transfer performance and resistance, the optimization and research are carried out on single spiral duct double pipe condenser.
本文在综合考虑传热性能和摩擦阻力等因素的基础上，对单螺旋槽套管式冷凝器的结构进行了优化和研究。
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