Abstract: Existing methods of designing heat exchangers for the condensation ofmulticomponent mixtures are of two basic kinds: equilibrium methods and non-equilibrium methods. Equilibrium methods not well-grounded in principle. The second methods are exact but they are too time consuming even in a single computation and very tedious for the design of a multichannel plate-fin exchanger. This paper is to present a total heat flux equation consisting of a heat-mass resistance factor correlated from a set of experimantal data. This is as simple as the equilibrium methods but still retain the non-equilibrium nature of the problem which signifies the condition of vapor and condensate in the condenser. The results are shown to be better than those from any approximate methods.

摘要： 该法的特点是总热通量方程内包含一个由实验数据关联的热质阻力因子.计算简便,准确性好于所有的近似法,且能适应于相变多股流换热器的计算.文中还以板翅式换热器垂直冷凝含氢轻烃系统为例进行了关联.