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 |
| DOIs | |
| Publication status | Published - 2018 |
| Event | 16th International Heat Transfer Conference, IHTC 2018 - Beijing, China Duration: 2018 Aug 10 → 2018 Aug 15 |
Bibliographical note
Funding Information:THIS RESEARCH WAS SUPPORTED BY THE TECHNOLOGY INNOVATION PROGRAM (GRANT NO. 10052926) BY THE MINISTRY OF TRADE, INDUSTRY & ENERGY
Publisher Copyright:
© 2018 International Heat Transfer Conference. All rights reserved.
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
Keywords
- Condensation heat transfer
- Low GWP refrigerant
- Plat heat exchanger
- Pressure drop
- R-1233zd(E)
ASJC Scopus subject areas
- Condensed Matter Physics
- Mechanical Engineering
- Fluid Flow and Transfer Processes