...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Energy Conversion & Management >Performance investigation on a frost-free air source heat pump system employing liquid desiccant dehumidification and compressor-assisted regeneration based on exergy and exergoeconomic analysis
【24h】

Performance investigation on a frost-free air source heat pump system employing liquid desiccant dehumidification and compressor-assisted regeneration based on exergy and exergoeconomic analysis

机译：基于火用和能效分析的液体干燥剂除湿和压缩机辅助再生无霜空气源热泵系统性能研究

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

Frost build-up on the evaporator of air source heat pump severely deteriorates the heat transfer and subsequently reduces the performance of the system. Combining liquid desiccant dehumidification with heat pump system is an efficient strategy to achieve frost-free operation by dehumidifying the inlet air during winter in humid areas. In this paper, detailed energy, exergy and exergoeconomic analyses are performed for a frost-free air-conditioning system with integrated liquid desiccant dehumidification and compressor-assisted regeneration, in which the diluted liquid desiccant can be efficiently regenerated under low temperature condition. Parametric studies are conducted to appraise the influence of the important operation parameters on the performance of the proposed system. Then the hybrid system is optimized and compared from the exergoeconomic perspective. It is found that, the first and second largest exergy destructions take place in the regenerator and dehumidifier, which can be improved by increasing the investment costs. When the proposed system is optimized based on the exergoeconomics, the coefficient of performance and exergy efficiency increase by 13.02% and 12.73%, respectively. The total product unit costs can decrease by 12.64% compared to that under the basic operation condition.
机译：空气源热泵的蒸发器上积聚的霜严重恶化了热传递，继而降低了系统的性能。将液体干燥剂除湿与热泵系统相结合是一种有效的策略，可通过在冬季潮湿地区对进气进行除湿来实现无霜运行。本文对集成了液体干燥剂除湿和压缩机辅助再生的无霜空调系统进行了详细的能源，火用和能源经济分析，在低温条件下可以有效地再生稀释后的液体干燥剂。进行参数研究以评估重要操作参数对所提出系统性能的影响。然后，从能效经济学的角度对混合系统进行优化和比较。已经发现，第一和第二最大的火用破坏发生在蓄热器和除湿器中，这可以通过增加投资成本来改善。当基于能效经济学对提出的系统进行优化时，性能系数和能效效率分别提高了13.02％和12.73％。与基本运营条件相比，产品总成本可以降低12.64％。

著录项

  • 来源
    《Energy Conversion & Management》 |2019年第3期|167-181|共15页
  • 作者

    Su Wei; Li Hang; Sun Bo; Li Shuhong; Zhang Xiaosong;

  • 作者单位

    Southeast Univ, Sch Energy & Environm, Nanjing 210096, Jiangsu, Peoples R China;

    Xi An Jiao Tong Univ, Inst Turbomachinery, State Key Lab Multiphase Flow Power Engn, Sch Energy & Power Engn, Xian 710049, Shaanxi, Peoples R China|Univ Illinois, Energy Transport & Res Lab, Dept Mech Sci & Engn, Urbana, IL 61801 USA;

    Southeast Univ, Sch Energy & Environm, Nanjing 210096, Jiangsu, Peoples R China;

    Southeast Univ, Sch Energy & Environm, Nanjing 210096, Jiangsu, Peoples R China;

    Southeast Univ, Sch Energy & Environm, Nanjing 210096, Jiangsu, Peoples R China|Southeast Univ, Minist Educ, Key Lab Energy Thermal Convers & Control, Nanjing 210096, Jiangsu, Peoples R China;

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

    Frost free heat pump system; Compressor-assisted regeneration; Exergoeconomic analysis; Optimization;

    机译：无霜热泵系统;压缩机辅助再生;经济分析;优化;

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