Experimental Comparison on Distribution Uniformity Among Different Types of Refrigerant Distributors Used in Air-conditioners
When selecting the type of pressure-drop distributor for air conditioners with good distribution performance, the divergence of the distribution uniformity among the existing types of pressure-drop distributors should be checked. In this study, an experimental rig for testing the distribution homoge...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Journal of Refrigeration Magazines Agency Co., Ltd.
2022-01-01
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| Series: | Zhileng xuebao |
| Subjects: | |
| Online Access: | http://www.zhilengxuebao.com/thesisDetails#10.3969/j.issn.0253-4339.2022.06.025 |
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| Summary: | When selecting the type of pressure-drop distributor for air conditioners with good distribution performance, the divergence of the distribution uniformity among the existing types of pressure-drop distributors should be checked. In this study, an experimental rig for testing the distribution homogeneity of distributors was designed and established. Thereafter, the distribution unevenness of existing reflection-type, jet loop-type, Venturi-type, and filter-type distributors were measured and compared. The testing conditions include a refrigerant volumetric flow rate of 32–125 L/h and a vapor quality of 0.15–0.22, which represent the normal operating conditions of room air conditioners. The installation angle of the distributor between the central axis of the distributor and the vertical direction ranged from 0° to 90°. The results demonstrate that a large mass flow rate of the inlet refrigerant or the vertical installation of the distributor is beneficial to distribution uniformity. The filter-type distributor exhibited good distribution uniformity under various experimental conditions, with a distribution unevenness of less than 0.05. Thus, the filter-type distributor is most suitable for air conditioners. |
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| ISSN: | 0253-4339 |