A cube of side 21 mm is made of a material with thermal conductivity 182 W m-1 K-1, density 1426 kg m-3, and specific heat 2562 J kg-1 K-1. It is exposed to air at 19°C with a convection heat transfer with a coefficient 6 W m K-1. The cube's initial temperature is 169. How long will it take to reach 76°C? (express your answer in seconds to one decimal place, but do not type the unit)
A cube of side 21 mm is made of a material with thermal conductivity 182 W m-1 K-1, density 1426 kg m-3, and specific heat 2562 J kg-1 K-1. It is exposed to air at 19°C with a convection heat transfer with a coefficient 6 W m K-1. The cube's initial temperature is 169. How long will it take to reach 76°C? (express your answer in seconds to one decimal place, but do not type the unit)
Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
8th Edition
ISBN:9781305387102
Author:Kreith, Frank; Manglik, Raj M.
Publisher:Kreith, Frank; Manglik, Raj M.
Chapter2: Steady Heat Conduction
Section: Chapter Questions
Problem 2.40P: One end of a 0.3-m-long steel rod is connected to a wall at 204C. The other end is connected to a...
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