Abstract
Due to the environmental problems such as global warming and the destruction of the ozone layer, the conventional refrigerants such as CFCs(Choloro Fluoro Carbon), HCFCs(Hydro Chloro Fluoro Carbon), and HFCs(Hydro Fluoro Carbon) are supposed to be phased out soon. Therefore, studies on low GWP (Global Warming Potential) refrigerants have been extensively paid attention. In this study, experimental studies are conducted to investigate the characteristics of condensation heat transfer and frictional pressure drop for R-1233zd(E), which is a kind of HCFO (Hydro Chloro Fluoro Olefin) with a GWP value lower than 7. It is found that the average condensation heat transfer coefficient of R-1233zd(E) varies from 0.75 to 1.82 kW/m2K with mean vapor quality range of 0.21 to 0.82. Also the frictional pressure drop ranges 4.66 to 13.54 kPa with same mean vapor quality range. During the partial condensation process, the condensation heat transfer coefficients increase as the heat fluxes increase. However, no significant change in frictional pressure drop is observed while the heat fluxes change.
| Original language | English |
|---|---|
| Pages (from-to) | 5019-5024 |
| Number of pages | 6 |
| Journal | International Heat Transfer Conference |
| Volume | 2018-August |
| Publication status | Published - 2018 Jan 1 |
| Event | 16th International Heat Transfer Conference, IHTC 2018 - Beijing, China Duration: 2018 Aug 10 → 2018 Aug 15 |
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Keywords
- Condensation heat transfer
- Low GWP refrigerant
- Plat heat exchanger
- Pressure drop
- R-1233zd(E)
ASJC Scopus subject areas
- Fluid Flow and Transfer Processes
- Condensed Matter Physics
- Mechanical Engineering
Cite this
Condensation heat transfer and pressure drop characteristics of low GWP refrigerants in plate heat exchanger. / Kwon, Oh Jin; Jung, Jae Hoon; Kang, Yong Tae.
In: International Heat Transfer Conference, Vol. 2018-August, 01.01.2018, p. 5019-5024.Research output: Contribution to journal › Conference article
}
TY - JOUR
T1 - Condensation heat transfer and pressure drop characteristics of low GWP refrigerants in plate heat exchanger
AU - Kwon, Oh Jin
AU - Jung, Jae Hoon
AU - Kang, Yong Tae
PY - 2018/1/1
Y1 - 2018/1/1
N2 - Due to the environmental problems such as global warming and the destruction of the ozone layer, the conventional refrigerants such as CFCs(Choloro Fluoro Carbon), HCFCs(Hydro Chloro Fluoro Carbon), and HFCs(Hydro Fluoro Carbon) are supposed to be phased out soon. Therefore, studies on low GWP (Global Warming Potential) refrigerants have been extensively paid attention. In this study, experimental studies are conducted to investigate the characteristics of condensation heat transfer and frictional pressure drop for R-1233zd(E), which is a kind of HCFO (Hydro Chloro Fluoro Olefin) with a GWP value lower than 7. It is found that the average condensation heat transfer coefficient of R-1233zd(E) varies from 0.75 to 1.82 kW/m2K with mean vapor quality range of 0.21 to 0.82. Also the frictional pressure drop ranges 4.66 to 13.54 kPa with same mean vapor quality range. During the partial condensation process, the condensation heat transfer coefficients increase as the heat fluxes increase. However, no significant change in frictional pressure drop is observed while the heat fluxes change.
AB - Due to the environmental problems such as global warming and the destruction of the ozone layer, the conventional refrigerants such as CFCs(Choloro Fluoro Carbon), HCFCs(Hydro Chloro Fluoro Carbon), and HFCs(Hydro Fluoro Carbon) are supposed to be phased out soon. Therefore, studies on low GWP (Global Warming Potential) refrigerants have been extensively paid attention. In this study, experimental studies are conducted to investigate the characteristics of condensation heat transfer and frictional pressure drop for R-1233zd(E), which is a kind of HCFO (Hydro Chloro Fluoro Olefin) with a GWP value lower than 7. It is found that the average condensation heat transfer coefficient of R-1233zd(E) varies from 0.75 to 1.82 kW/m2K with mean vapor quality range of 0.21 to 0.82. Also the frictional pressure drop ranges 4.66 to 13.54 kPa with same mean vapor quality range. During the partial condensation process, the condensation heat transfer coefficients increase as the heat fluxes increase. However, no significant change in frictional pressure drop is observed while the heat fluxes change.
KW - Condensation heat transfer
KW - Low GWP refrigerant
KW - Plat heat exchanger
KW - Pressure drop
KW - R-1233zd(E)
UR - http://www.scopus.com/inward/record.url?scp=85068310534&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85068310534&partnerID=8YFLogxK
M3 - Conference article
AN - SCOPUS:85068310534
VL - 2018-August
SP - 5019
EP - 5024
JO - International Heat Transfer Conference
JF - International Heat Transfer Conference
SN - 2377-424X
ER -