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可利用低品位热源的Einstein循环初始运行参数确定 被引量:3

INITIAL RUNNING PARAMETER ANALYSIS OF EINSTEIN CYCLE CAPABLE OF USING LOW QUALIFIED HEAT SOURCE
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摘要 Einstein制冷循环通过制冷剂(正丁烷)、压力平衡剂(氨气)和吸收剂(水)协同作用,在三工质连续的扩散-吸收循环过程中产生制冷效应。制冷装置的驱动力可由太阳能等低品位能源提供。使用状态方程法(EOS),选用适合描述强极性工质汽液两相物性的Patel-Teja(PT)立方型方程,结合Reid-Panagiotopolos混合规则对Einstein制冷循环中NH_3/C_4H_(10)和NH_3/H_2O混合工质的相平衡性质进行了预测,得出几组不同压力条件下的相平衡数据。利用校核计算后所绘相图,结合制冷循环的经济实用性,完成了Einstein制冷循环初始运行状态参数的确定,为该制冷循环的热力设计计算创造了条件。 This paper predicts thermal physical property--vapor-liquid equilibrium for binary mixture working fluid used in single-pressure absorption Einstein cycle by Patel-Teja(PT) cubic equation and Reid-Panagiotopolos mixing rule. Depending on common thermal equations, data for the VLE (or VILE) of C4H10/NH3 and NH3/H2O is obtained and compared with existing data. With phase diagrams and economic practicality of refrigeration equipment, initial analysis of cycle operating parameters is determined. Conclusions will help to further thermodynamic calculating of Einstein refrigeration cycle.
出处 《太阳能学报》 EI CAS CSCD 北大核心 2009年第3期322-326,共5页 Acta Energiae Solaris Sinica
基金 上海市重点学科建设项目(T0503)
关键词 混合工质 状态方程 气液平衡 运行参数 mixture working fluid equation of state vapor-liquid equilibrium running parameter
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参考文献9

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