CO2空气源热泵供暖系统性能分析
TB61+1%TK172%TU832; 为解决常规CO2系统供暖效率低的问题,本文建立了常规CO2系统、R410A喷气增焓系统、复叠系统、间接过冷CO2系统、直接过冷CO2系统的热力学模型,对采用不同供热末端的系统性能进行优化和分析.结果 表明:当供/回水温度为65℃/40℃(供热末端为暖气片)、环境温度为-20～20℃时,直接过冷系统的COP较常规CO2系统提升3.8％～20.9％.直接过冷系统的CO2循环占主导地位,间接过冷系统在大多数工况下辅助系统对热水生产占主导.仅需通过为直接过冷系统配置相对较小的蒸气压缩制冷循环装置,即可实现系统效率的显著提升.对于不同的CO2热泵系统,环境温度高于...
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| Published in | 制冷学报 Vol. 41; no. 4; pp. 37 - 44 |
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| Main Authors | , , , , , |
| Format | Journal Article |
| Language | Chinese |
| Published |
天津商业大学天津市制冷技术重点实验室 天津300134
01.08.2020
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| Subjects | |
| Online Access | Get full text |
| ISSN | 0253-4339 |
| DOI | 10.3969/j.issn.0253-4339.2020.04.037 |
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| Abstract | TB61+1%TK172%TU832; 为解决常规CO2系统供暖效率低的问题,本文建立了常规CO2系统、R410A喷气增焓系统、复叠系统、间接过冷CO2系统、直接过冷CO2系统的热力学模型,对采用不同供热末端的系统性能进行优化和分析.结果 表明:当供/回水温度为65℃/40℃(供热末端为暖气片)、环境温度为-20～20℃时,直接过冷系统的COP较常规CO2系统提升3.8％～20.9％.直接过冷系统的CO2循环占主导地位,间接过冷系统在大多数工况下辅助系统对热水生产占主导.仅需通过为直接过冷系统配置相对较小的蒸气压缩制冷循环装置,即可实现系统效率的显著提升.对于不同的CO2热泵系统,环境温度高于-15 ℃时,直接过冷系统(火用)效率均高于其它系统,较常规CO2系统(火用)效率提高19.3％～28.2％;环境温度低于-15℃时,CO2/R1234yf复叠系统的(火用)效率最高. |
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| AbstractList | TB61+1%TK172%TU832; 为解决常规CO2系统供暖效率低的问题,本文建立了常规CO2系统、R410A喷气增焓系统、复叠系统、间接过冷CO2系统、直接过冷CO2系统的热力学模型,对采用不同供热末端的系统性能进行优化和分析.结果 表明:当供/回水温度为65℃/40℃(供热末端为暖气片)、环境温度为-20～20℃时,直接过冷系统的COP较常规CO2系统提升3.8％～20.9％.直接过冷系统的CO2循环占主导地位,间接过冷系统在大多数工况下辅助系统对热水生产占主导.仅需通过为直接过冷系统配置相对较小的蒸气压缩制冷循环装置,即可实现系统效率的显著提升.对于不同的CO2热泵系统,环境温度高于-15 ℃时,直接过冷系统(火用)效率均高于其它系统,较常规CO2系统(火用)效率提高19.3％～28.2％;环境温度低于-15℃时,CO2/R1234yf复叠系统的(火用)效率最高. |
| Author | 王嘉豪 齐海峰 张鹏 代宝民 刘圣春 漆乐 |
| AuthorAffiliation | 天津商业大学天津市制冷技术重点实验室 天津300134 |
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| Author_FL | Zhang Peng Wang Jiahao Qi Haifeng Liu Shengchun Dai Baomin Qi Le |
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| Keywords | 复叠 间接过冷系统 直接过冷系统 喷气增焓 空气源热泵 CO2 |
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| Snippet | TB61+1%TK172%TU832; 为解决常规CO2系统供暖效率低的问题,本文建立了常规CO2系统、R410A喷气增焓系统、复叠系统、间接过冷CO2系统、直接过冷CO2系统的热力学模型,对采用不同供... |
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| Title | CO2空气源热泵供暖系统性能分析 |
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