O heatsource: 1나0°C%3Dcomposite wall(3 layers)1T↑pory unethaneboardcorereterockwool(15 cm ,k> 0.742W/m2 K(5 cm(9,8 cm,k= 0.0397w Im? k%3D0.0392Tconue te=32°CCAposed toair andheat soureEmir ivity%3D=0.90Sowe:1. conyeetiyegivenheattrans fercocfficinto fnsideair8,23 (w Imo k),%3Do f insidetemperaturecom posite walldefermineair at endof2. heardtransferradiationSuetothermal(negleckconveetion)natural3. usingtransferfrom # 2,heartSOMEmtergacetemperature,inrermostwall

given; ⇒T1=1400c=413K⇒concrete temeperature (Tc)=320c=305K⇒length(l1)=15cm=0.15m⇒conductivity…

Answered: O heat Source 140°C %3D Civen:…

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.

Chapter9: Heat Transfer With Phase Change

Section: Chapter Questions

Problem 9.4DP

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