卡林那循环的热力学分析

THERMODYNAMIC ANALYSIS FOR KALINA CYCLE

简要介绍一种以氨/水混合物为工质的新型动力循环——卡林那循环的工作原理及其节能的热力学分析。应用氨/水混合物相平衡和热力性质计算方法,对一级蒸馏卡林那循环进行详细分析。经比较,表明本文计算结果较卡林那本人的计算结果更准确。本文对一级蒸馏卡林那循环的工作成分氨的浓度x进行了优化。对于200℃以下热源,计算得到卡林那循环工作成分氨的最佳浓度x在0.41～0.43范围内。

Kalina cycle is a new kind of power cycle. It uses NH_3/H_2O mixtures as its working fluid. This paper introduces the working principle and the thermo- dynamic analysis of energy saving for Kalina cycle. A single distillation stage Kalina cycle is analysed in detail and the optimal working concentration is determined. It can be concluded that the calculated results are more accurate than those of Kalina. For the heat source below 200℃, the optimal working concentration is 0.41～0.43.