抄録
Safety design of multi-air-conditioning-system was studied. Leakance of refrigerant gas by the leak accident during several different conditions was evaluated in an experimental system. Leakance from the liquid pipe was largest when the air conditioning system was working as heating. Using this experimental data, gas concentration in the room was predicted. As the result, it was found that maximum reached concentration in the room became larger than limit concentration defined by oxygen deprivation limit. For the countermeasure, separation of the room from leak point using air-tight ceiling system was found effective to reduce the concentration in the room. As the result of the prediction, concentration in the room was reduced as about 1/10 of concentration in the plenum chamber, if the countermeasure was evaluated.
| 元の言語 | English |
|---|---|
| ページ（範囲） | 393-399 |
| ページ数 | 7 |
| ジャーナル | Journal of Environmental Engineering |
| 巻 | 76 |
| 発行部数 | 662 |
| DOI | |
| 出版物ステータス | Published - 2011 4 |
| 外部発表 | Yes |
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ASJC Scopus subject areas
- Environmental Engineering
これを引用
Studies on leak conditions of refrigerant-gas from multiple air-conditioning systems. / Suwa, Yoshihide; Nagamori, Toshihiro; Sueyoshi, Yuji; Ueda, Hirotsugu.
：: Journal of Environmental Engineering, 巻 76, 番号 662, 04.2011, p. 393-399.研究成果: Article
}
TY - JOUR
T1 - Studies on leak conditions of refrigerant-gas from multiple air-conditioning systems
AU - Suwa, Yoshihide
AU - Nagamori, Toshihiro
AU - Sueyoshi, Yuji
AU - Ueda, Hirotsugu
PY - 2011/4
Y1 - 2011/4
N2 - Safety design of multi-air-conditioning-system was studied. Leakance of refrigerant gas by the leak accident during several different conditions was evaluated in an experimental system. Leakance from the liquid pipe was largest when the air conditioning system was working as heating. Using this experimental data, gas concentration in the room was predicted. As the result, it was found that maximum reached concentration in the room became larger than limit concentration defined by oxygen deprivation limit. For the countermeasure, separation of the room from leak point using air-tight ceiling system was found effective to reduce the concentration in the room. As the result of the prediction, concentration in the room was reduced as about 1/10 of concentration in the plenum chamber, if the countermeasure was evaluated.
AB - Safety design of multi-air-conditioning-system was studied. Leakance of refrigerant gas by the leak accident during several different conditions was evaluated in an experimental system. Leakance from the liquid pipe was largest when the air conditioning system was working as heating. Using this experimental data, gas concentration in the room was predicted. As the result, it was found that maximum reached concentration in the room became larger than limit concentration defined by oxygen deprivation limit. For the countermeasure, separation of the room from leak point using air-tight ceiling system was found effective to reduce the concentration in the room. As the result of the prediction, concentration in the room was reduced as about 1/10 of concentration in the plenum chamber, if the countermeasure was evaluated.
KW - Air-tightness
KW - Leak accident
KW - Maximum Reached Concentration
KW - Multi Air Conditioning System for the Builthng
KW - Refrigerant gas
KW - SqfetyDesign
UR - http://www.scopus.com/inward/record.url?scp=84861085175&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84861085175&partnerID=8YFLogxK
U2 - 10.3130/aije.76.393
DO - 10.3130/aije.76.393
M3 - Article
AN - SCOPUS:84861085175
VL - 76
SP - 393
EP - 399
JO - Journal of Environmental Engineering (Japan)
JF - Journal of Environmental Engineering (Japan)
SN - 1348-0685
IS - 662
ER -