The two-phase pressure drop of the pure refrigerant HFC-134a during condensation inside a vertical tube-intube heat exchanger was investigated. The double tube test section was 0.5 m long with refrigerant flowing in the inner tube and cooling water flowing in the annulus. The inner tube was construc
TWO-PHASE FLOW PRESSURE DROP OF HFC-134a DURING CONDENSATION IN SMOOTH AND MICRO-FIN TUBES AT HIGH MASS FLUX
β Scribed by Tipjak Nualboonrueng; Somchai Wongwises
- Publisher
- Elsevier Science
- Year
- 2004
- Tongue
- English
- Weight
- 817 KB
- Volume
- 31
- Category
- Article
- ISSN
- 0735-1933
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This study compares well-known two-phase pressure drop models with the experimental results of a condensation pressure drop of (i) R600a in a 1 m long horizontal smooth copper tube with an inner diameter of 4 mm, outer diameter of 6 mm and (ii) R134a in a 0.5 m vertical smooth copper tube with an in
The two-phase heat transfer coefficients of pure HFC-134a condensing inside a smooth tube-in-tube heat exchanger are experimentally investigated. The test section is a 0.5 m long double tube with refrigerant flowing in the inner tube and cooling water flowing in the annulus. The inner tube is constr
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