Modeling and Performance Prediction of a Solar Powered Rankin Cycle/Gas Turbine Cycle

机译：太阳能朗肯循环/燃气轮机循环的建模与性能预测

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The present study is dealing with the development and implementation of an integrated solar combined cycle power plant in which heat recovery system generator gets its energy from the waste heat of a gas turbine unit in additional to solar concentrator field. The solar field is aimed to produce a nearly saturated steam at maximum solar radiation times and superheating by the exhaust gases from the gas turbine unit. The superheating steam is expanded through a simple one stage steam turbine. The main problem of the plant lies in the fact that the efficiency of the solar system diminishes as its operating temperature rises, while the efficiency of the steam turbine rises as its operating temperature rise. A simulation mathematical model has been developed for each component and the components are matched together. This model is used to predict the temperatures, mass and heat transfer within the system under various operating and design conditions. The calculations were limited to a simple Rankine cycle for the steam turbine. The studied parameters included the contributions of the solar energy as well as the waste energy with the product of the gas turbine. The efficiencies of the solar concentrator, steam turbine, and gas turbine are considered also. The final results showed that the solar energy can contribute by about 70% while the energy recovery for the waste energy for the gas turbine can contribute by about 9%. The values of the efficiencies reached to about 62% for the solar concentrator, 40% for the gas turbine, 32% for the steam turbine and the finally the overall efficiency reached to 29% for the solar integrated combined cycle power plant. Some recommendations and proposed work are suggested in the paper.

机译：本研究涉及集成太阳能联合循环发电厂的开发和实施，其中除太阳能集热器领域外，热回收系统发电机从燃气轮机单元的废热中获取能量。该太阳能场旨在在最大的太阳辐射时间下产生接近饱和的蒸汽，并通过来自燃气轮机单元的废气产生过热。过热蒸汽通过一个简单的一级蒸汽轮机膨胀。该设备的主要问题在于，太阳能系统的效率随其工作温度的升高而降低，而蒸汽轮机的效率随其工作温度的升高而升高。已经为每个组件开发了一个仿真数学模型，并将组件匹配在一起。该模型用于预测各种操作和设计条件下系统内的温度，质量和热传递。该计算仅限于汽轮机的简单兰金循环。研究的参数包括太阳能的贡献以及燃气轮机产品产生的废能。还考虑了太阳能集中器，蒸汽轮机和燃气轮机的效率。最终结果表明，太阳能可贡献约70％，而燃气轮机废能源的能量回收可贡献约9％。太阳能集中器的效率值达到约62％，燃气轮机的效率值达到40％，蒸汽轮机的效率值达到32％，最后，太阳能集成联合循环发电厂的整体效率达到29％。本文提出了一些建议和建议的工作。

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来源
《Challenges of Power Engineering and Environment》|2007年|1-5|共5页
会议地点 Hangzhou(CN)
作者
Fei Wu; rnDaniel S. Weld;
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作者单位

Mohammed A. Elhaj@Department of Mechanical Engineering, 7th October University P.O.Box 327, Misurata, Libya--Kassim K. Matrawy@Department of Mechanical Engineering, 7th October University P.O.Box 327, Misurata, Libya--Jamal S. Yassin@Department of Mechanical Engineering, 7th October University P.O.Box 327, Misurata, Libya--;

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原文格式 PDF
正文语种
中图分类输配电工程、电力网及电力系统;
关键词
Solar Concentrator; Gas Turbine; Steam Turbine; Solar Contribution Factor; Concentrator Efficiency; Mass Ratio; Overall Efficiency;

机译：太阳能聚光器；燃气轮机；蒸汽轮机；太阳能贡献因子；聚光器效率；质量比；总体效率;

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Modeling and Performance Prediction of a Solar Powered Rankin Cycle/Gas Turbine Cycle

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