Combined solar organic Rankine cycle with reverse osmosis desalination process: Energy, exergy, and cost evaluations

被引：300

作者：

Nafey, A. S. ^{[1
]}

Sharaf, M. A. ^{[1
]}

机构：

[1] Suez Canal Univ, Dept Engn Sci, Fac Petr & Min Engn, Suez, Egypt

来源：

RENEWABLE ENERGY | 2010年 / 35卷 / 11期

关键词：

Solar organic Rankine cycle (ORC); Organic working fluids; Energy; exergy and cost analyses; SEAWATER DESALINATION; DESIGN; SYSTEM; TECHNOLOGIES; EGYPT;

D O I：

10.1016/j.renene.2010.03.034

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Organic Rankine cycles (ORC) have unique properties that are well suited to solar power generation. In this work design and performance calculations are performed using MatLab/SimuLink computational environment. The cycle consists of thermal solar collectors (Flat Plate Solar Collector (FPC), or Parabolic Trough Collector (PTC), or Compound Parabolic Concentrator (CPC)) for heat input, expansion turbine for work output, condenser unit for heat rejection, pump unit, and Reverse Osmosis (RO) unit. Reverse osmosis unit specifications used in this work is based on Sharm El-Shiekh RO desalination plant. Different working fluids such as: butane, isobutane, propane, R134a, R152a, R245ca, and R245fa are examined for FPC, R113, R123, hexane, and pentane are investigated for CPC. Dodecane, nonane, octane, and toluene are allocated for PTC. The proposed process units are modeled and show a good validity with literatures. Exergy and cost analysis are performed for saturation and superheated operating conditions. Exergy efficiency, total exergy destruction, thermal efficiency, and specific capital cost are evaluated for direct vapor generation (DVG) process. Toluene and Water achieved minimum results for total solar collector area, specific total cost and the rate of exergy destruction. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：2571 / 2580

页数：10

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