空气-空气湿热交换器热力计算的对比模型法

本文对一开始就冷凝的叉流式空气-空气湿热交换器提出一种新的热力计算法,即对比模型法。其基本原理为:由实际和虚拟热交换器的模型方程构成对比模型方程组,并证明了对比模型方程组的焓效率与干态热交换器的温度效率的相似性,使干、湿热交换器的热力计算方法在一定条件下得到统一。

A CONTRAST MODEL METHOD FOR THE THERMODYNAMIC CALCULATION OF AIR-AIR WET HEAT EXCHANGER

The new method of thermodynamic calculation （the contrast model method） for air-air crossflow wet heat exchanger with wet air condensing first at the entry is proposed in this paper. The contrast model equations are made from the actual heat exchanger equations and the imaginary heat exchanger equations, and than it may be proved that the enthalpy efficiency of the contrast model equations is similar to the temperature efficiency of the dry heat exchanger. So the thermodynamic calculation methods for dry and wet heat exchangers can be unified under given conditions. ....... ..