書誌事項
- タイトル別名
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- Two-Phase Flow Visualization of Refrigerant Fluid at Expansion Valve
- ボウチョウベン オ ツウカ シタ レイバイ ノ キエキ 2ソウ リュウドウ ゲンショウ ノ カシカ
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Recently, the noise caused by the refrigerant fluid is spotlighted due to the demand of low noise home and office air conditioners. Especially, reduction of refrigerant fluid noise and vibration noise generated from throttle in the expansion valve is becoming important. Therefore in this study it is intended to resolve fluctuating phenomena of fluid, which may be the cause of noise, by flow visualization and measurement of fluid pressure and temperature at throttle valves, focusing on two-phase flow of refrigerant fluid. A test equipment suitable for flow visualization of R410a refrigerant was developed by epoch making design and manufacturing method. Visualization was realized by laser beam irradiated on the visualization equipment and by high-speed video camera. Test conditions are set of combinations of 4 different conditions of compressor revolution and 4 different conditions of valve opening of expansion valve. As results of the following conclusions are drawn. (1)A visualization technique of throttle of expansion valve has been developed by manufacturing visualization equipment, which is most suitable to the test. (2)It has been confirmed that refrigerants is liquid and two-phase condition in the upstream of throttle, where a needle is inserted and that refrigerant fluid flow in two-phase in the downstream of throttle.
収録刊行物
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- 日本冷凍空調学会論文集
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日本冷凍空調学会論文集 23 (1), 67-78, 2006
公益社団法人 日本冷凍空調学会
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詳細情報 詳細情報について
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- CRID
- 1390282679644303872
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- NII論文ID
- 10017961679
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- NII書誌ID
- AA11125910
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- COI
- 1:CAS:528:DC%2BD28Xlt1SltLg%3D
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- ISSN
- 2185789X
- 13444905
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- NDL書誌ID
- 7905813
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- IRDB
- NDL
- CiNii Articles
- KAKEN
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- 使用不可