Simulation Research on Leakage of Vehicle CO2 Air Conditioning System
As a safe, efficient, and environmentally friendly natural working fluid, CO2 is the primary choice for future automotive air conditioners. To consider the comfort and safety problem of an excessive CO2 volumetric concentration in the passenger cabin caused by refrigerant leakage, the 3D simulation...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | zho |
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Journal of Refrigeration Magazines Agency Co., Ltd.
2023-01-01
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| Series: | Zhileng xuebao |
| Subjects: | |
| Online Access: | http://www.zhilengxuebao.com/thesisDetails#10.3969/j.issn.0253-4339.2023.06.022 |
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| _version_ | 1849707786806493184 |
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| author | Zong Shuo Yin Xiang Huang Longfei Song Yulong Cao Feng |
| author_facet | Zong Shuo Yin Xiang Huang Longfei Song Yulong Cao Feng |
| author_sort | Zong Shuo |
| collection | DOAJ |
| description | As a safe, efficient, and environmentally friendly natural working fluid, CO2 is the primary choice for future automotive air conditioners. To consider the comfort and safety problem of an excessive CO2 volumetric concentration in the passenger cabin caused by refrigerant leakage, the 3D simulation software STAR-CCM+ was used to build a CO2 refrigerant leakage model in the passenger compartment. Simulations and analyses of the dynamic changes in CO2 volumetric fraction in the passenger compartment facial measurement points for two different leakage rates and leakage orifice diameters were performed. At a high CO2 leakage rate of 50 g/s, the CO2 volumetric fraction on the face can reach more than 9% when the leakage is completed. The air supply mode must be switched to provide fresh air and reduce the CO2 volumetric fraction in the passenger cabin. At a low CO2 leakage rate of 0.1 g/s, the facial CO2 volumetric fraction does not exceed 3%, which is safe for breathing, when the leakage is completed. |
| format | Article |
| id | doaj-art-36c82e2d414c482a85a9516c0bfd3b70 |
| institution | DOAJ |
| issn | 0253-4339 |
| language | zho |
| publishDate | 2023-01-01 |
| publisher | Journal of Refrigeration Magazines Agency Co., Ltd. |
| record_format | Article |
| series | Zhileng xuebao |
| spelling | doaj-art-36c82e2d414c482a85a9516c0bfd3b702025-08-20T03:15:50ZzhoJournal of Refrigeration Magazines Agency Co., Ltd.Zhileng xuebao0253-43392023-01-014466498703Simulation Research on Leakage of Vehicle CO2 Air Conditioning SystemZong ShuoYin XiangHuang LongfeiSong YulongCao FengAs a safe, efficient, and environmentally friendly natural working fluid, CO2 is the primary choice for future automotive air conditioners. To consider the comfort and safety problem of an excessive CO2 volumetric concentration in the passenger cabin caused by refrigerant leakage, the 3D simulation software STAR-CCM+ was used to build a CO2 refrigerant leakage model in the passenger compartment. Simulations and analyses of the dynamic changes in CO2 volumetric fraction in the passenger compartment facial measurement points for two different leakage rates and leakage orifice diameters were performed. At a high CO2 leakage rate of 50 g/s, the CO2 volumetric fraction on the face can reach more than 9% when the leakage is completed. The air supply mode must be switched to provide fresh air and reduce the CO2 volumetric fraction in the passenger cabin. At a low CO2 leakage rate of 0.1 g/s, the facial CO2 volumetric fraction does not exceed 3%, which is safe for breathing, when the leakage is completed.http://www.zhilengxuebao.com/thesisDetails#10.3969/j.issn.0253-4339.2023.06.022CO2heat-pump air conditionerleakage characteristicsrefrigerant |
| spellingShingle | Zong Shuo Yin Xiang Huang Longfei Song Yulong Cao Feng Simulation Research on Leakage of Vehicle CO2 Air Conditioning System Zhileng xuebao CO2 heat-pump air conditioner leakage characteristics refrigerant |
| title | Simulation Research on Leakage of Vehicle CO2 Air Conditioning System |
| title_full | Simulation Research on Leakage of Vehicle CO2 Air Conditioning System |
| title_fullStr | Simulation Research on Leakage of Vehicle CO2 Air Conditioning System |
| title_full_unstemmed | Simulation Research on Leakage of Vehicle CO2 Air Conditioning System |
| title_short | Simulation Research on Leakage of Vehicle CO2 Air Conditioning System |
| title_sort | simulation research on leakage of vehicle co2 air conditioning system |
| topic | CO2 heat-pump air conditioner leakage characteristics refrigerant |
| url | http://www.zhilengxuebao.com/thesisDetails#10.3969/j.issn.0253-4339.2023.06.022 |
| work_keys_str_mv | AT zongshuo simulationresearchonleakageofvehicleco2airconditioningsystem AT yinxiang simulationresearchonleakageofvehicleco2airconditioningsystem AT huanglongfei simulationresearchonleakageofvehicleco2airconditioningsystem AT songyulong simulationresearchonleakageofvehicleco2airconditioningsystem AT caofeng simulationresearchonleakageofvehicleco2airconditioningsystem |