An experiment is conducted here to investigate how the channel size affects the subcooled flow boiling heat transfer and the associated bubble characteristics of refrigerant R-407C in a horizontal narrow annular duct with the gap of the duct fixed at 1.0 and 2.0 mm. The measured boiling curves indic
โฆ LIBER โฆ
Flow pattern and heat transfer characteristics of R-134a refrigerant during flow boiling in a horizontal circular mini-channel
โ Scribed by Sira Saisorn; Jatuporn Kaew-On; Somchai Wongwises
- Publisher
- Elsevier Science
- Year
- 2010
- Tongue
- English
- Weight
- 920 KB
- Volume
- 53
- Category
- Article
- ISSN
- 0017-9310
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This paper presents an improved flow pattern map for predicting the heat transfer coefficients during condensation of R-134a inside a smooth horizontal tube. Experimental tests were conducted over the low-mass flux range of 75-300 kg/m 2 s, at a nominal saturation temperature of 40 ยฐC, and with the