needed solution now please the heat transfer through half hr (2) juhäi The heat is dissipated from the plateby convection and radiation intosurrounds at 20 C. Take ɛ =0.8 , o=5.67x10**-8 and hoo = 6 W/m**2. K.If the surface temperature of theplate is 50 C ,the value of the heat: flux from the plate is309.71 W /m2 ONone394.93 W/m2479.27 W /m2(2) juhäi A rectangular fin with k=43 W/m.C,thickness t=2 cm , length L=14 cmand width W=1 m. The base of thefin is maintained at a temperature of200 C while the fin is exposed to aconvection environment at To= 15 Cand ho = 20 W/m2 .C .Using thechart , calculate the heat lost from. the finNone486 W/m632 W/m O391 W/mII>

We are restricted to solve one question at a time. Please ask other questions in the next post.…

(2) juhäi The heat is dissipated from the plate by convection and radiation into surrounds at 20 C. Take ɛ =0.8 , o =5.67x10**-8 and ho = 6 W/m**2. K. If the surface temperature of the plate is 50 C ,the value of the heat : flux from the plate is 309.71 W /m2 O None O 394.93 W/m2 O 479.27 W /m2

(2) juhäi The heat is dissipated from the plate by convection and radiation into surrounds at 20 C. Take ɛ =0.8 , o =5.67x10-8 and ho = 6 W/m2. K. If the surface temperature of the plate is 50 C ,the value of the heat : flux from the plate is 309.71 W /m2 O None O 394.93 W/m2 O 479.27 W /m2

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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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

needed solution now please the heat transfer through half hr

(2) juhäi The heat is dissipated from the plate
by convection and radiation into
surrounds at 20 C. Take ɛ =0.8 , o
=5.67x10**-8 and hoo = 6 W/m**2. K.
If the surface temperature of the
plate is 50 C ,the value of the heat
: flux from the plate is
309.71 W /m2 O
None
394.93 W/m2
479.27 W /m2
(2) juhäi A rectangular fin with k=43 W/m.C,
thickness t=2 cm , length L=14 cm
and width W=1 m. The base of the
fin is maintained at a temperature of
200 C while the fin is exposed to a
convection environment at To= 15 C
and ho = 20 W/m2 .C .Using the
chart , calculate the heat lost from
. the fin
None
486 W/m
632 W/m O
391 W/m
II
>

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