Abstract
| Original language | Japanese |
|---|---|
| Pages (from-to) | 245-252 |
| Number of pages | 8 |
| Journal | 日本冷凍空調学会論文集 |
| Volume | 26 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2009 |
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CO<Sub>2</Sub>/DME混合冷媒を用いたヒートポンプサイクルの性能解析. / 尾中洋次; 宮良明男; 椿耕太郎; 小山繁.
In: 日本冷凍空調学会論文集, Vol. 26, No. 3, 2009, p. 245-252.Research output: Contribution to journal › Article
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TY - JOUR
T1 - CO<Sub>2/DME混合冷媒を用いたヒートポンプサイクルの性能解析
AU - 尾中, 洋次
AU - 宮良, 明男
AU - 椿, 耕太郎
AU - 小山, 繁
PY - 2009
Y1 - 2009
N2 - Performance analyses have been carried out for a heat pump cycle using zeotropic refrigerant mixtures of carbon dioxide (CO<Sub>2) and dimethyl ether (DME). In order to clarify the characteristics and coefficient of performance (COP) of CO<Sub>2/DME heat pump cycle, the concentration of mixture was varied over a wide range. The calculation conditions were established as a hot-water supply system and the calculations were conducted by considering the heat transfer between the refrigerant and heat source/sink water. Because the heat transfer between refrigerant and heat source/sink water strongly affects on the cycle behavior, effects of the heat transfer capability parameter were investigated. The heat pump cycle is formed around the critical point for high CO<Sub>2 concentration mixtures and it is formed under the critical point for low CO<Sub>2 concentration mixtures. The COP has the maximum at a certain pressure for each mixture and the COPs of the mixture and pure DME are higher than that of pure CO<Sub>2. Operating pressure decreases with increase of DME concentration. The effects of heat transfer between the refrigerant and heat source/sink water on characteristics of the cycle have also been clarified.
AB - Performance analyses have been carried out for a heat pump cycle using zeotropic refrigerant mixtures of carbon dioxide (CO<Sub>2) and dimethyl ether (DME). In order to clarify the characteristics and coefficient of performance (COP) of CO<Sub>2/DME heat pump cycle, the concentration of mixture was varied over a wide range. The calculation conditions were established as a hot-water supply system and the calculations were conducted by considering the heat transfer between the refrigerant and heat source/sink water. Because the heat transfer between refrigerant and heat source/sink water strongly affects on the cycle behavior, effects of the heat transfer capability parameter were investigated. The heat pump cycle is formed around the critical point for high CO<Sub>2 concentration mixtures and it is formed under the critical point for low CO<Sub>2 concentration mixtures. The COP has the maximum at a certain pressure for each mixture and the COPs of the mixture and pure DME are higher than that of pure CO<Sub>2. Operating pressure decreases with increase of DME concentration. The effects of heat transfer between the refrigerant and heat source/sink water on characteristics of the cycle have also been clarified.
U2 - 10.11322/tjsrae.26.245
DO - 10.11322/tjsrae.26.245
M3 - 記事
VL - 26
SP - 245
EP - 252
JO - 日本冷凍空調学会論文集
JF - 日本冷凍空調学会論文集
SN - 1344-4905
IS - 3
ER -