Optimum configuration of shell-and-tube heat exchangers for the use in low-temperature organic Rankine cycles

被引：73

作者：

Walraven, Daniel ^{[1
,3
]}

Laenen, Ben ^{[2
,3
]}

D'haeseleer, William ^{[1
,3
]}

机构：

[1] Univ Leuven KU Leuven, TME Branch Appl Mech & Energy Convers, Energy Inst, B-3001 Louvain, Belgium

[2] Flemish Inst Technol Res VITO, B-2400 Mol, Belgium

[3] EnergyVille Joint Venture VITO & KU Leuven, B-3600 Genk, Belgium

来源：

ENERGY CONVERSION AND MANAGEMENT | 2014年 / 83卷

关键词：

ORC; Shell-and-tube heat exchanger; System optimization; DESIGN OPTIMIZATION; ORC;

D O I：

10.1016/j.enconman.2014.03.066

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

In this paper, a first step towards a system optimization of organic Rankine cycles (ORCs) is taken by optimizing the cycle parameters together with the configuration of shell-and-tube heat exchangers. In this way every heat exchanger has the optimum allocation of heat-exchanger surface, pressure drop and pinch-point-temperature difference for the given boundary conditions. Different tube configurations are, investigated in this paper. It is concluded that the 30 degrees-tube configurations should be used for the single-phase heat exchangers and the 60 degrees-tube configuration for the two-phase heat exchangers. The performance of subcritical cycles can be strongly improved by adding a second pressure level. Recuperated cycles are only useful when the temperature of the heat source after the ORC should be relatively high. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：177 / 187

页数：11

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