• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International journal of hydrogen energy >Comparative energy, exergy and exergo-economic analysis of solar driven supercritical carbon dioxide power and hydrogen generation cycle
【24h】

Comparative energy, exergy and exergo-economic analysis of solar driven supercritical carbon dioxide power and hydrogen generation cycle

机译：太阳能驱动的超临界二氧化碳发电和制氢周期的比较能，能值和能经济性分析

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Parabolic dish solar collector system has capability to gain higher efficiency by converting solar radiations to thermal heat due to its higher concentration ratio. This paper examines the exergo-economic analysis, net work and hydrogen production rate by integrating the parabolic dish solar collector with two high temperature supercritical carbon dioxide (s-CO2) recompression Brayton cycles. Pressurized water (H2O) is used as a working fluid in the solar collector loop. The various input parameters (direct normal irradiance, ambient temperature, inlet temperature, turbine inlet temperature and minimum cycle temperature) are varied to analyze the effect on net power output, hydrogen production rate, integrated system energetic and exergetic efficiencies. The simulations has been carried out using engineering equation solver (EES). The outputs demonstrate that the net power output of the integrated reheat recompression s-CO2 Brayton system is 3177 kW, whereas, without reheat integrated system has almost 1800 kW net work output. The overall energetic and exergetic efficiencies of former system is 30.37% and 32.7%, respectively and almost 11.6% higher than the later system. The hydrogen production rate of the solarized reheat and without reheat integrated systems is 0.0125 g/sec and 0.007 g/sec, accordingly and it increases with rise in direct normal irradiance and ambient temperature. The receiver has the highest exergy destruction rate (nearly 44%) among the system components. The levelized electricity cost (LEC) of 0.2831 $/kWh with payback period of 9.5 years has proved the economic feasibility of the system design. The increase in plant life from 10 to 32 years with 8% interest rate will decrease the LEC from (0.434-0.266) $/kWh. Recuperators have more potential for improvement and their cost rate of exergy is higher as compared to the other components. (C) 2019 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
机译：抛物面碟形太阳能收集器系统由于其较高的集中度，可以通过将太阳辐射转换为热能来获得更高的效率。本文通过将抛物面碟形太阳能集热器与两个高温超临界二氧化碳（s-CO2）再压缩布雷顿循环相结合，研究了能效分析，净功和制氢率。加压水（H2O）在太阳能收集器回路中用作工作流体。改变各种输入参数（直接正常辐照度，环境温度，入口温度，涡轮机入口温度和最小循环温度）以分析对净功率输出，制氢率，集成系统能量和能量效率的影响。使用工程方程求解器（EES）进行了仿真。输出结果表明，集成式再热再压缩s-CO2 Brayton系统的净功率输出为3177 kW，而未进行再加热的集成系统的净功输出为1800 kW。前一个系统的整体能量效率和精力充沛效率分别为30.37％和32.7％，几乎比后一个系统高11.6％。太阳能再加热和不带再加热集成系统的氢气产生速率分别为0.0125 g / sec和0.007 g / sec，并且随着直接正常辐照度和环境温度的升高而增加。在系统组件中，接收器的火用破坏率最高（近44％）。平均电费（LEC）为0.2831 $ / kWh，投资回收期为9.5年，证明了系统设计的经济可行性。将植物寿命从10年增加到32年（利率为8％）将使LEC从（0.434-0.266）$ / kWh降低。与其他组件相比，换热器具有更大的改进潜力，并且其火用成本率更高。 （C）2019氢能出版物有限公司。由Elsevier Ltd.出版。保留所有权利。

著录项

  • 来源
    《International journal of hydrogen energy》 |2020年第9期|5653-5667|共15页
  • 作者

  • 作者单位

    Cyprus Int Univ Fac Engn Dept Energy Syst Engn Via Mersin 10 Nicosia North Cyprus Turkey;

    Mirpur Univ Sci & Technol Mech Engn Dept Mirpur 10250 Ajk Pakistan;

    Natl Univ Sci & Technol Islamabad Pakistan;

  • 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

    s-CO2; Exergo-economic; Hydrogen production; LEC; Electrolyzer; Brayton cycle;

    机译：二氧化碳能动经济;制氢;LEC;电解槽布雷顿循环;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号