Journal of Power System Engineering (동력기계공학회지)
- Volume 9 Issue 1
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- Pages.30-35
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- 2005
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- 2713-8429(pISSN)
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- 2713-8437(eISSN)
Effect of Number of Rough Walls on Heat Transfer in the Square Channel with a Uniform Heat Flux
일정 열유속을 가진 사각채널에서 거친 벽면의 수가 열전달에 미치는 효과
Abstract
Repeated ribs are used on heat exchanger surfaces to promote turbulence and to enhance convective heat transfer. Applications include fuel rods of gas-cooled nuclear reactors, inside cavities of turbine blades, and internal surfaces pipes used in heat exchangers. Despite the great number of literature papers, only few experimental data concerns detailed distributions of friction factors and heat transfer coefficients in square channels varying the number of rough walls. This issue was tackled by investigating effects of different number of ribbed walls on heat transfer and friction characteristics in square channel. The rough wall had a
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