标题：
Investigation on the waste heat air drying system with a bottom organic Rankine cycle
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所属单位：
能源与动力学院
发表刊物：
APPLIED THERMAL ENGINEERING
关键字：
Drying process Moisture extraction ratio Organic Rankine cycle Waste heat recovery Energy saving
摘要：
A waste heat air drying system, including a top closed air drying cycle and a bottom organic Rankine cycle (ORC), is proposed, considering the temperature matches during the humid air sensible heat and latent heat recovery processes. In the top air cycle, the waste heat is used as heat source. In the bottom ORC, the sensible heat and latent heat in the humid air of the top cycle are recovered to generate power and get rid of the moisture. The results showed two key parameters, including the working composition and the evaporating pressure of the bottom ORC, influence thermal matching of the humid air waste heat recovering process, and then on overall energy saving performance of the proposed system significantly. Using the zeotropic mixtures as working fluids of the bottom ORC is a better way with the air relative moisture content lower than 0.2, compared to that of using pure working fluids. While, using the pure working fluid is better with the air relative moisture content over 0.2. The optimal evaporating pressure of the bottom ORC is obtained, to achieve the maximal specific net power output and total thermal efficiency of the drying system. (C) 2017 Elsevier Ltd. All rights reserved.
ISSN号：
1359-4311
是否译文：
否
发表时间：
2017-05-25
合写作者：
Zhu, Bangshou,伍亚
通讯作者：
岳晨
发表时间：
2017-05-25
学位：工学博士学位
职称：副教授
所在单位：能源与动力学院