A liquid bubble, initially at 0C, is floating along on the wind, exchanging heat via radiation and
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Question:
A liquid bubble, initially at 0C, is floating along on the wind, exchanging heat via radiation and convection with the ambient air. Calculate how long the bubble takes to freeze.
Given: Bubble OD = 10 cm, wall thickness = 1 mm Ambient temperature = -20C Emissivity = 0.8 Convection coefficient = 8 W/m 2 /C
You may neglect heat transfer between the liquid and the air inside of the bubble. Assume that the bubble is made of pure water.
Related Book For
Principles of heat transfer
ISBN: 978-0495667704
7th Edition
Authors: Frank Kreith, Raj M. Manglik, Mark S. Bohn
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