基于压缩空气储能与增强型地热的三联产系统热力学分析

为提升压缩空气储能技术的能量利用率与供能灵活性,基于能量梯级利用原理,提出了一种耦合压缩空气储能与增强型地热技术的冷热电联产系统.通过建立系统的热力学模型,研究了关键运行参数对系统热力学性能的影响规律,并以系统?效率和单位能量成本为目标函数,获得了系统的多目标优化解集.结果表明,膨胀机与换热器是系统高效运行的关键设备,提升这 2 个设备的运行效率对于系统热力学性能以及输出功量的提升作用显著,采用多目标优化方法得到系统的最优?效率为 55.73%,最优单位能量成本为6378.94 元/kW,能量效率和相对节能率较设计工况分别提升了6.1%和 10.68%.研究结果从热力学和经济学角度为系统的工程...

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Published in中国电力 Vol. 57; no. 1; pp. 209 - 218
Main Authors 梁健, 王蒙, 杨亚欣, 胡杨, 姚尔人
Format Magazine Article
LanguageChinese
Published 陕西省天然气股份有限公司,陕西西安 710016%陕西省水利电力勘测设计研究院,陕西西安 710005%西安交通大学能源与动力工程学院,陕西西安 710049 2024
Subjects
分析
geothermal technology
combined cooling heating and power system
energy analysis
exergy analysis
压缩空气储能
地热技术
compressed air energy storage
能量分析
冷热电联产
Online AccessGet full text
ISSN1004-9649
DOI10.11930/j.issn.1004-9649.202306024

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Abstract 为提升压缩空气储能技术的能量利用率与供能灵活性,基于能量梯级利用原理,提出了一种耦合压缩空气储能与增强型地热技术的冷热电联产系统.通过建立系统的热力学模型,研究了关键运行参数对系统热力学性能的影响规律,并以系统?效率和单位能量成本为目标函数,获得了系统的多目标优化解集.结果表明,膨胀机与换热器是系统高效运行的关键设备,提升这 2 个设备的运行效率对于系统热力学性能以及输出功量的提升作用显著,采用多目标优化方法得到系统的最优?效率为 55.73%,最优单位能量成本为6378.94 元/kW,能量效率和相对节能率较设计工况分别提升了6.1%和 10.68%.研究结果从热力学和经济学角度为系统的工程应用提供了理论依据.
AbstractList 为提升压缩空气储能技术的能量利用率与供能灵活性,基于能量梯级利用原理,提出了一种耦合压缩空气储能与增强型地热技术的冷热电联产系统.通过建立系统的热力学模型,研究了关键运行参数对系统热力学性能的影响规律,并以系统?效率和单位能量成本为目标函数,获得了系统的多目标优化解集.结果表明,膨胀机与换热器是系统高效运行的关键设备,提升这 2 个设备的运行效率对于系统热力学性能以及输出功量的提升作用显著,采用多目标优化方法得到系统的最优?效率为 55.73%,最优单位能量成本为6378.94 元/kW,能量效率和相对节能率较设计工况分别提升了6.1%和 10.68%.研究结果从热力学和经济学角度为系统的工程应用提供了理论依据.
Abstract_FL To further improve the efficiency and supply flexibility of compressed air energy storage(CAES),a novel combined cooling-heating-power(CCHP)system integrating CAES and enhanced geothermal system is proposed based on the law of energy cascade utilization.The thermodynamic models of each component within the system are established.The impacts of crucial parameters on the thermodynamic performance of the system are investigated.The multi-objective optimization is carried out to pursue the optimal Pareto fronts of exergy efficiency and total investment cost per total output energy.The results indicate that the expander and heat exchanger are the two key components in the system,and the thermodynamic performance of the above two components could improve the performance of the system significantly.Finally,the optimum exergy efficiency of the system is 55.73%,and the best total investment cost per total output energy is 6378.94 yuan/kW.The optimum values of energy efficiency and energy saving ratio are 6.1%and 10.68%,respectively,which are higher than those of values under design condition.
Author 王蒙
梁健
姚尔人
胡杨
杨亚欣
AuthorAffiliation 陕西省天然气股份有限公司,陕西西安 710016%陕西省水利电力勘测设计研究院,陕西西安 710005%西安交通大学能源与动力工程学院,陕西西安 710049
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Author_FL YANG Yaxin
YAO Erren
WANG Meng
HU Yang
LIANG Jian
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DocumentTitle_FL Thermodynamic Analysis of CCHP with Compressed Air Energy Storage and Enhanced Geothermal Technology
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Issue 1
Keywords 分析
geothermal technology
combined cooling heating and power system
energy analysis
exergy analysis
压缩空气储能
地热技术
compressed air energy storage
能量分析
冷热电联产
Language Chinese
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PublicationTitle 中国电力
PublicationTitle_FL Electric Power
PublicationYear 2024
Publisher 陕西省天然气股份有限公司,陕西西安 710016%陕西省水利电力勘测设计研究院,陕西西安 710005%西安交通大学能源与动力工程学院,陕西西安 710049
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Snippet 为提升压缩空气储能技术的能量利用率与供能灵活性,基于能量梯级利用原理,提出了一种耦合压缩空气储能与增强型地热技术的冷热电联产系统.通过建立系统的热力学模型,研究了...
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Title 基于压缩空气储能与增强型地热的三联产系统热力学分析
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