多背压凝汽器的优化

Optimization of Multi-pressure Condenser

本文从传热学和热力学的基本原理出发，利用严格的数学分析，导出了多背压凝汽器平均冷凝温度和多背压凝汽器熵产生数，以级数、传热单元数等参数表达的关系式。提出了多背压凝汽器平均冷凝温度和多背压凝汽器熵产生数达到极小值所应满足的条件。得出了多背压凝汽器设计应遵循的原则。

Starting with the fundamentals of heat transfer and thermodynamics,the dependencier of mean condensing temperature Tsm and entropy generation number Ns of multi-pressure condenser on parameters,such as:the numbed of stages,number of heat transfer units and so on are deduced in this paper.It is known from the research that along with the change of the above parameters,both of Tsm and Ns have their minimums.The conditions are present under which Tsm and Ns are minimal.