Determine the ball temperature, please find solution fast please A metal ball of diameter 60 mm is initially at 220°C.The ball is suddenly cooled by an air jet of 20°C.The heat transfer coefficient is 200 W/m2K. Thespecific heat, thermal conductivity and density ofthe metal ball are 400 J/kgK, 400 W/mK and9000 kg/m3, respectively. The ball temperature(in °C) after 90 seconds will be approximately

Given; A metal ball of diameter 60 mminitially at T1=2200 CHeat tranfer coefficient…

Answered: Determine the ball temperature,

Engineering

Mechanical Engineering

Determine the ball temperature,

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.

Chapter5: Analysis Of Convection Heat Transfer

Section: Chapter Questions

Problem 5.31P

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Concept explainers

Work and Heat Transfer

It is generally related to thermal engineering which tells about the use, creation, conversion and transfer of heat energy between the systems. It is also considered that to transfer heat from one source to another, transfer of masses is also required. There are various mechanisms by which, transfer of heat takes place i.e. thermal conduction, convection, radiation or by change of phase. All these mechanisms have their own specific features which sometimes occur simultaneously within the same system.

Question

Determine the ball temperature, please find solution fast please

A metal ball of diameter 60 mm is initially at 220°C.
The ball is suddenly cooled by an air jet of 20°C.
The heat transfer coefficient is 200 W/m2K. The
specific heat, thermal conductivity and density of
the metal ball are 400 J/kgK, 400 W/mK and
9000 kg/m3, respectively. The ball temperature
(in °C) after 90 seconds will be approximately

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