The heat transfer effects of tube wall on a parallel-loop thermosyphon

Journal Article · Mon Mar 01 04:00:00 EST 1993 · International Communications in Heat and Mass Transfer; (United States)

DOI:https://doi.org/10.1016/0735-1933(93)90049-2· OSTI ID:6478158

Yueh, C S; Weng, C I ^[1]; Hwang, C C ^[2]

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1. National Cheng Kung Univ, Tainan (Taiwan, Province of China)
2. Chung Yung Univ., Chung Li (Taiwan, Province of China)

The effects of tube wall heat transfer on the natural convection flows in a parallel loop thermosyphon are investigated analytically. The results show that the thermosyphon with consideration of those effects is more stable than that without the consideration. They also reveal that an increase in the value of thermal diffusivity ratio, [alpha], or radius ratio, [delta], will increase the magnitude of the onset critical Rayleigh number, Ra[sub c] and reduce the velocity of steady flow.

• OSTI ID: 6478158
• Journal Information: International Communications in Heat and Mass Transfer; (United States), Journal Name: International Communications in Heat and Mass Transfer; (United States) Vol. 20:2; ISSN 0735-1933; ISSN IHMTDL
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420400* -- Engineering-- Heat Transfer & Fluid Flow
CONVECTION
DIFFUSION
ENERGY TRANSFER
HEAT TRANSFER
MASS TRANSFER
NATURAL CONVECTION
PHYSICAL PROPERTIES
STABILITY
THERMAL DIFFUSION
THERMAL DIFFUSIVITY
THERMODYNAMIC PROPERTIES
THERMOSYPHONS
TUBES