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首页> 外文期刊>Solar Energy >Energy, exergy and economic analyses for the selection of working fluid and metal oxide nanofluids in a parabolic trough collector
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Energy, exergy and economic analyses for the selection of working fluid and metal oxide nanofluids in a parabolic trough collector

机译：能量，火用和经济分析，用于选择抛物槽收集器中的工作流体和金属氧化物纳米流体

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摘要

In this paper, energy, exergy and economic analyses of a parabolic trough solar collector (PTC) are carried out in Tehran (Capital of Iran). Two basefluids (water and thermal oil VP-1) with different volumetric ratios (1%, 3%, and 5%) of CuO and Al2O3 nanoparticles are investigated. For this purpose, 1-D mathematical model is developed using MATLAB software to simulate the energy and exergy efficiencies of the PTC. The numerical model is first validated with experimental data from literature and a good agreement was obtained. Numerical results show that using water as basefluid has better energy and exergy efficiencies than oil. Annual average energy and exergy efficiencies (10.81% and 9.44%) of PTC using water as a basefluid are higher than those (10.64% and 9.07%) of PTC using oil as a basefluid. Also in general, adding nanoparticles has non-considerable effects on system performance (both basefluids). For example, adding Al2O3 and CuO with 5% volumetric ratio to water as a basefluid increases annual average energy efficiency 0.03% and 0.09%. But exergy efficiency increases by 1.98% and 0.93%, respectively. Cost of heat rate gain by a PTC is 0.05 and 0.06 $/kWh for water and oil, respectively. Also adding nanoparticles to the basefluid does not have a major effect on this cost.
机译：本文在伊朗首都德黑兰对抛物槽式太阳能集热器（PTC）进行了能量，能值和经济分析。研究了两种具有不同体积比（分别为1％，3％和5％）的CuO和Al2O3纳米颗粒的基础流体（水和导热油VP-1）。为此，使用MATLAB软件开发了一维数学模型，以模拟PTC的能量和火用效率。首先用来自文献的实验数据验证了该数值模型，并获得了良好的一致性。数值结果表明，以水为基础流体比油具有更好的能量和火用效率。以水为基流的PTC的年平均能量和火用效率（10.81％和9.44％）高于以油为基流的PTC的年平均能量和火用效率（10.64％和9.07％）。同样，通常，添加纳米粒子对系统性能（包括基本流体）的影响都不大。例如，向水中添加体积比为5％的Al2O3和CuO作为基本流体，可以提高年平均能源效率0.03％和0.09％。但是，火用效率分别提高了1.98％和0.93％。对于水和油，PTC的热费率成本分别为0.05和0.06 $ / kWh。另外，将纳米颗粒添加到基本流体中对该成本没有重大影响。

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  • 来源
    《Solar Energy》 |2019年第7期|175-184|共10页
  • 作者

    Ehyaei M. A.; Ahmadi A.; Assad M. El Haj; Hachicha A. A.; Said Z.;

  • 作者单位

    Islamic Azad Univ, Pardis Branch, Dept Mech Engn, Pardis New City, Iran;

    Iran Univ Sci & Technol, Sch New Technol, Dept Energy Syst Engn, Tehran, Iran;

    Univ Sharjah, Dept Sustainable & Renewable Energy Engn, Sharjah, U Arab Emirates;

    Univ Sharjah, Dept Sustainable & Renewable Energy Engn, Sharjah, U Arab Emirates;

    Univ Sharjah, Dept Sustainable & Renewable Energy Engn, Sharjah, U Arab Emirates;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Working fluids; Nanofluids; Parabolic through collector; Energy; Exergy; Economic; Particle; Solar;

    机译：工作液;纳米流体;通过集热器的抛物面;能量;火能;经济;颗粒;太阳能;

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