Thermodynamic study of multi-effect thermal vapour-compression desalination systems

被引：34
作者：
Samake, Oumar [1 ]
Galanis, Nicolas [1 ]
Sorin, Mikhail [1 ]
机构：
[1] Univ Sherbrooke, Sherbrooke, PQ J1K 2R1, Canada
来源：
ENERGY | 2014年 / 72卷
关键词：
Energy-exergy analysis; Finite-size thermodynamics; Ejector; Parametric analysis; Design recommendations; REVERSE-OSMOSIS; GAS-TURBINE; OPTIMIZATION; ENERGY; POWER; HEAT; CYCLE; SIMULATION; RECOVERY; DRIVEN;
D O I：
10.1016/j.energy.2014.04.092
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The parametric analysis of a multi-effect-evaporation (MEE) desalination system combined with a thermal-vapour-compression (TVC) process activated by a gaseous stream of specified flowrate and temperature was performed based on the principles of classical (1st and 2nd laws) and finite-size thermodynamics. The MEE subsystem was treated as a black box and therefore the results are valid for any combination of physical characteristics and internal operational conditions of this subsystem. They show the effects of four design variables (the motive fluid pressure and the compression ratio of the ejector, the condenser temperature pinch and the ratio of rejected to supplied seawater) on significant operating quantities and performance indicators such as: energy supplied by the heat source; motive fluid flowrate; flowrates of the supplied seawater and produced potable water; specific heat consumption; thermal conductance of the vapour generator and the condenser; exergy destruction by the MEE, the ejector and the vapour generator. Based on the obtained results recommendations are formulated for the optimal choice of values for the four design variables. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：69 / 79
页数：11
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