2024-03-29T14:43:51Z
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2022-12-15T03:34:54Z
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Research for Air Cooling System Using Vacuum-cooled Water Refrigerant
Sugawara, Akira
6674
Nakamikawa, Satoru
6675
Kageyama, Masaya
6676
Yamazaki, Satoshi
6677
Abe, Naoto
6678
Kawasaki, Kazumasa
6679
Matsubara, Koji
6680
Non-CFCs
Air-cooling System
Water
Vacuum Pump
Heat
An air-cooling system of a small capacity of several kilo-watts using only water refrigerant as a non-CFCs (Chlorofluorocarbon) technology is examined. The experimental device consists of two stages. The first stage is composed of a vacuum pump and a vacuum chamber of about 60 L in volume. The second stage has two heat exchangers (the exchanger located outside the vacuum chamber is a dummy cooling load) and a water circulating pump. An air-conditioner indoor unit or a heater is used as a dummy cooling load. The temperature and humidity characteristics are measured at each place. Consequently, the ability to cool the room air is ensured by an air-cooling system using only water refrigerant. A new vacuum pump, that can exhaust a large amount of water vapor, is developed and its properties are measured. It seems that the engine-based vacuum pump performance is sufficient to drive the air cooling system with water refrigerant.
journal article
The Japan Society of Mechanical Engineers
2008-01
application/pdf
Journal of Environment and Engineering
1
3
135
145
1880-988X
https://niigata-u.repo.nii.ac.jp/record/2024/files/3_1_135-145.pdf
eng
http://doi.org/10.1299/jee.3.135
https://www.jstage.jst.go.jp/browse/jee
The Japan Society of Mechanical Engineers