- R1 = 7.6 mm - Thickness "S" k2 R2 Air R1 =R2-R1=3.6 - velocity V= 8.82 m/s V= m/s kl Igen L= 158 mm Air Properties: kair = 0.0263 W/m.K, vair=15.89 × 10“ m²/s, Prair = 0.707 k2 = 1.23 W/m.K, Air (To= 25 °C) passes at velocity, V m/s , in across flow around the rod. The outer surface temperature, T:= (139 C Heat is generated in a rod (R1, ki = 4 w/m.K), according to Igen(r) = q0 (1 –-) "W /m³", qo: constant value R1. 1. What is temperature distribution inside the rod in-terms of "heat generation : q0, surface temperature:T1, thermal conductivity: k¡ " 2. What is the convective heat transfer coefficient (W/m².K) at R2, heat transfer rate (W), the temperature at the rod surface, T1, ““C", the heat generation constant , qo "W/m3" and the maximum temperature in the rod "°C".
- R1 = 7.6 mm - Thickness "S" k2 R2 Air R1 =R2-R1=3.6 - velocity V= 8.82 m/s V= m/s kl Igen L= 158 mm Air Properties: kair = 0.0263 W/m.K, vair=15.89 × 10“ m²/s, Prair = 0.707 k2 = 1.23 W/m.K, Air (To= 25 °C) passes at velocity, V m/s , in across flow around the rod. The outer surface temperature, T:= (139 C Heat is generated in a rod (R1, ki = 4 w/m.K), according to Igen(r) = q0 (1 –-) "W /m³", qo: constant value R1. 1. What is temperature distribution inside the rod in-terms of "heat generation : q0, surface temperature:T1, thermal conductivity: k¡ " 2. What is the convective heat transfer coefficient (W/m².K) at R2, heat transfer rate (W), the temperature at the rod surface, T1, ““C", the heat generation constant , qo "W/m3" and the maximum temperature in the rod "°C".
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
Related questions
Question
![- R1 = 7.6 mm
Thickness "S"
k2
R2
Air
To
R1
=R2-R1=3.6
V= m/s
q
kl
"gen
- velocity
V= 8.82 m/s
L= 158 mm
Air Properties:
kair = 0.0263 W/m.K, vair= 15.89 × 10“ m²/s, Prair
= 0.707
k2 = 1.23 W/m.K,
Air (To= 25 °C) passes at velocity, V m/s , in across flow around the rod.
The outer surface temperature, Tz= (139 C
Heat is generated in a rod (R1, ki = 4 w/m.K), according to
I gen(r) = q0 (1 -) "W /m³", qo: constant value
|
R1.
1. What is temperature distribution inside the rod in-terms of “heat generation : qo,
surface temperature:T1, thermal conductivity: ki
2. What is the convective heat transfer coefficient (W/m².K) at R2, heat transfer rate
(W), the temperature at the rod surface, T1, “"C", the heat generation constant , qo
"W/m3" and the maximum temperature in the rod ""C".
Solution
Temperature distribution, in final form
T(r) =
Convective heat transfer coefficient
(W/m?.K)
Heat transfer rate =
(W)
T1 =
°C
The heat generation constant, qo=
(W/m³)
Tmax
°C](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F686c689f-5071-4e87-a4d3-f481542995ed%2F70545268-d61d-432b-8303-e8716c781073%2Fnt148rl_processed.jpeg&w=3840&q=75)
Transcribed Image Text:- R1 = 7.6 mm
Thickness "S"
k2
R2
Air
To
R1
=R2-R1=3.6
V= m/s
q
kl
"gen
- velocity
V= 8.82 m/s
L= 158 mm
Air Properties:
kair = 0.0263 W/m.K, vair= 15.89 × 10“ m²/s, Prair
= 0.707
k2 = 1.23 W/m.K,
Air (To= 25 °C) passes at velocity, V m/s , in across flow around the rod.
The outer surface temperature, Tz= (139 C
Heat is generated in a rod (R1, ki = 4 w/m.K), according to
I gen(r) = q0 (1 -) "W /m³", qo: constant value
|
R1.
1. What is temperature distribution inside the rod in-terms of “heat generation : qo,
surface temperature:T1, thermal conductivity: ki
2. What is the convective heat transfer coefficient (W/m².K) at R2, heat transfer rate
(W), the temperature at the rod surface, T1, “"C", the heat generation constant , qo
"W/m3" and the maximum temperature in the rod ""C".
Solution
Temperature distribution, in final form
T(r) =
Convective heat transfer coefficient
(W/m?.K)
Heat transfer rate =
(W)
T1 =
°C
The heat generation constant, qo=
(W/m³)
Tmax
°C
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