An Experiment study concerning Natural convection frome a Horizontal Thin wire
Publish place: International Journal of Engineering (IJE)، Vol: 3، Issue: 3
Publish Year: 1369
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_IJE-3-3_011
تاریخ نمایه سازی: 18 بهمن 1400
Abstract:
An experimental investigation was carried out to determine heat transfer coefficients for natural convection from a heated horizontal wire. The heating is provided by electrical current, and the temperature of the wire is determined from the measurement of its resistance. The experiments are performed in three different convective environments: air, water, and oil. Prandtl number ranged between ۰.۷۰۲ and ۵۸۶۴, while the Grashof number and Rayleigh number varied respectively from ۲.۶×۱۰-۶ to ۸.۷ and ۰.۰۱۵ to ۲۶. The Nusselt number results are correlated as a function of Rayleigh number, without dependence on Prandtl number.
Authors
M. Etemad
Mechanical Engineering, Isfahan University of Technology
Majid Molki
Mechanical Engineering, Southern Illinois University