Numerical predicting the dynamic behavior of heat exchangers for a small-scale Organic Rankine Cycle

被引：4
|
作者：
Liu, Liuchen [1 ]
Pan, Yu [1 ]
Zhu, Tong [1 ]
Gao, Naiping [1 ]
机构：
[1] Tongji Univ, Sch Mech & Energy Engn, Shanghai 201804, Peoples R China
来源：
4TH INTERNATIONAL SEMINAR ON ORC POWER SYSTEMS | 2017年 / 129卷
关键词：
Organic Rankine Cycle (ORC); dynamic simulation; moving boundary model; discretized model; RECOVERY;
D O I：
10.1016/j.egypro.2017.09.127
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Dynamic modeling is a hot topic for investigations of Organic Rankine Cycle (ORC). In this paper, Moving boundary model and discretized model were used to describe the dynamic behavior of heat exchangers in a small-scale ORC using R123 as working fluid. Overall system model is assembled using dynamic models of heat exchangers combing static models of the scroll expander and the pump. The comparison made between the established models and experimental results shows that both the models can reveal the real system performance sufficiently. Moreover, the moving boundary model is numerically faster than the discretized model, and therefore more suitable for engineering applications. (C) 2017 The Authors. Published by Elsevier Ltd.
引用
收藏
页码：419 / 426
页数：8
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