Thermodynamic and Thermo-economic Analysis of Integrated Organic Rankine Cycle for Waste Heat Recovery from Vapor Compression Refrigeration Cycle

被引：32

作者：

Asim, Muhammad ^{[1
]}

Leung, Michael K. H. ^{[1
]}

Shan, Zhiqiang ^{[1
]}

Li, Yingying ^{[1
]}

Leung, Dennis Y. C. ^{[2
]}

Ni, Meng ^{[3
]}

机构：

[1] City Univ Hong Kong, Sch Energy & Environm, Abil R&D Res Ctr, Hong Kong, Hong Kong, Peoples R China

[2] Univ Hong Kong, Dept Mech Engn, Hong Kong, Hong Kong, Peoples R China

[3] Hong Kong Polytech Univ, Dept Bldg & Real Estates, Hong Kong, Hong Kong, Peoples R China

来源：

LEVERAGING ENERGY TECHNOLOGIES AND POLICY OPTIONS FOR LOW CARBON CITIES | 2017年 / 143卷

关键词：

Air conditioning; Vapor compression cycle; Organic Rankine cycle; Waste heat recovery; Working fluid; Thermodynamic and thermo-economic analysis; WORKING FLUIDS; TEMPERATURE; OPTIMIZATION; ORC; SELECTION; ENERGY; POWER;

D O I：

10.1016/j.egypro.2017.12.670

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

In the present study, an integrated air-conditioning-organic Rankine cycle (i-AC-ORC) system which combines a vapour compression cycle and an organic Rankine cycle is proposed. An organic Rankine cycle system is applied to recover the waste heat rejected by the condenser of air-conditioning system. The selection of optimal fluid pairfor the air-conditioning subsystem and organic Rankine cycle subsystem is investigated. Based on thermodynamic (energy and exergy) and thermo-economic analysis, R600a-R123 is chosen as the fluid pair for this integrated air-conditioning-organic Rankine cycle system. The thermodynamic model has been programmed using Engineering Equation Solver (EES). The combined coefficient of performance (COP) of integrated system can be improved from 3.10 to 3.54 compared with that of the standalone air-conditioning subsystem. The organic Rankine cycle subsystem can yield 1.41 kW of net electricity with a thermal efficiency of 3.05%. The organic Rankine cycle subsystem operates with an exergy efficiency of 39.30%. In addition, energetic and exergetic performances of the integrated system are studied with variable external conditions. (C) 2017 The Authors. Published by Elsevier Ltd.

引用

页码：192 / 198

页数：7

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