Prospect of Offshore Floating Photovoltaic wind_tech D1

发布：2026-06-09 · 事件：2026-06-09

基于压缩式热泵的烟气二氧化碳捕集技术余热利用分析 李佳 , 李瑞帅 , 吕庆龙 Analysis of Waste Heat Utilization of Flue Gas Carbon Dioxide Capture Technology Based on Compression Heat Pump LI Jia , LI Ruishuai , LYU Qinglong Article Text...

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基于压缩式热泵的烟气二氧化碳捕集技术余热利用分析 李佳 , 李瑞帅 , 吕庆龙 Analysis of Waste Heat Utilization of Flue Gas Carbon Dioxide Capture Technology Based on Compression Heat Pump LI Jia , LI Ruishuai , LYU Qinglong Article Text (iFLYTEK Translation) × Close Disclaimer The English version of this article is automatically generated by iFLYTEK Translation and only for reference. We therefore are not responsible for its reasonableness, correctness and completeness, and will not bear any commercial and legal responsibilities for the relevant consequences arising from the English translation. Do not remind me again Cancel Confirm 摘要 HTML全文 图 (11) 表 (5) 参考文献 (24) 相关文章 施引文献 资源附件 (0) 摘要 摘要: 目的 燃煤火电厂是烟气CO 2 排放的主要来源之一。文章基于压缩式热泵技术，针对燃煤火电厂CO 2 捕集中的能耗问题，提出了一种烟气CO 2 捕集压缩式热泵系统方案，以降低能源损耗，促进低品位余热能的利用。 方法 基于循环工质各节点的热物性参数对热泵机组进行了热力计算及夹点分析。通过改变各种参数对系统进行变工况分析，研究了制冷剂种类、冷凝温度、蒸发温度、过冷度、过热度、压缩机效率、贫富液出口温度对性能系数（Coefficient of Performance，COP）及碳捕集系统能耗的影响。 结果 数据表明，当蒸发温度由35 ℃升高至50 ℃时，COP由2.79增至4.46。随着冷凝温度由95 ℃升高至110 ℃，COP由3.21降至2.40。相应地，提高贫胺液出口温度及降低富胺液出口温度时CO 2 捕集系统节约能耗量逐渐升高，当富胺液出口温度为92 ℃时CO 2 捕集系统节约能耗量可达 2.7539 MW。当过热度由2 ℃增至8 ℃时，COP由2.89降为2.67，CO 2 捕集系统节约能耗量由 2.6159 MW降为 2.503 MW。过冷度的变化趋势与过热度刚好相反，当过冷度由2 ℃增至8 ℃时，COP由2.73增至3.05，CO 2 捕集系统节约能耗量由 2.5375 MW升至 2.6885 MW。随着压缩机效率的增加，压缩式热泵的COP值逐渐增加。当压缩机效率为1时，COP可达3.49，此时可节约能耗 2.8539 MW。 结论 压缩式热泵系统的引入对降低CO 2 捕集系统能耗具有重要意义。 Abstract: Objective Coal-fired power plants are one of the main sources of flue gas carbon dioxide emissions. This paper proposes a compression heat pump system scheme for flue gas carbon dioxide capture, based on compression heat pump technology, to address the energy consumption issues associated with carbon capture in coal-fired power plants. The aim is to reduce energy consumption and promote the utilization of low-grade waste heat energy. Method Thermodynamic calculations and pinch analysis were conducted for the heat pump unit based on the thermophysical parameters of the circulating working fluid at each node. By varying different parameters, a variable condition analysis of the system was performed. The influences of refrigerant type, condensation temperature, evaporation temperature, subcooling degree, superheat degree, compressor efficiency, and outlet temperature of lean/rich amine liquids on coefficient of performance (COP) and the energy consumption of the carbon capture system were studied. Result The data indicates that COP increases from 2.79 to 4.46 when evaporation temperature increases from 35 ℃ to 50 ℃. With the condensation temperature increasing from 95 ℃ to 110 ℃, COP decreases from 3.21 to 2.40. Correspondingly, when the outlet temperature of the lean amine solution is increased and the outlet temperature of the rich amine solution is decreased, the energy saving of the carbon dioxide capture system gradually increases. When the outlet temperature of the rich amine solution is set to 92 ℃, the energy saving of the carbon dioxide capture system can reach 2.7539 MW. When the superheat degree increases from 2 ℃ to 8 ℃, the COP decreases from 2.89 to 2.67 and the energy saving of CO 2 capture system decreases from 2.6159 MW to 2.503 MW. The trend of the variation of subcooling degree is just opposite to that of superheat degree. When the subcooling degree increases from 2 ℃ to 8 ℃, the COP increases from 2.73 to 3.05 and the energy saving of the carbon dioxide capture system increases from 2.5375 MW to 2.6885 MW. With the increase of compressor efficiency, the COP of the compression heat pump increases gradually. When the compressor efficiency is 1, the COP can reach 3.49, which can save energy consumption of 2.8539 MW. Conclusion The introduction of compression heat pump system is of great significance in reducing the energy consumption of carbon dioxide capture systems. HTML全文 参考文献 (24) 相关文章 施引文献 资源附件 (0)