Experimental Research of Microchannel Heat Exchanger on Packaged Air Conditioning System
The application of microchannel heat exchanger is becoming more and more widely. The application of microchannel heat exchanger (MCHX) on domestic air conditioning system was investigated experimentally. The results show that: (1) when only the indoor heat exchanger was changed into the microchannel...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Journal of Refrigeration Magazines Agency Co., Ltd.
2015-01-01
|
| Series: | Zhileng xuebao |
| Subjects: | |
| Online Access: | http://www.zhilengxuebao.com/thesisDetails#10.3969/j.issn.0253-4339.2015.01.024 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | The application of microchannel heat exchanger is becoming more and more widely. The application of microchannel heat exchanger (MCHX) on domestic air conditioning system was investigated experimentally. The results show that: (1) when only the indoor heat exchanger was changed into the microchannel heat exchanger, the system had the best performance when the fin pitch of the indoor MCHX was 1.4mm. The charge of refrigerant for the system reduced 15.9%. Meanwhile, the cooling capacity of the new system was 1% lower than the original system while the COP was 2.2% higher; when it worked in heating mode, the heating capacity of the new system was 3.9% higher than the original one while the COP was 11.2% higher than the original one; (2)when all the heat exchangers were changed into the microchannel heat exchangers, the charge of refrigerant for the system was reduced 54%. Meanwhile, the cooling capacity of the new system was 0.8% higher while the COP was 5.2% higher than the original one in refrigerating mode; when the refrigerant was changed into R290, the best refrigerant charge for the new system was 500 g. |
|---|---|
| ISSN: | 0253-4339 |