MRW 002 Solved Assignment 2022-23
MRW 002 Solved Assignment 2022-23
Heat Transfer
MRW 002
Solved Assignment 2022: MRW 002 Solved Assignment 2022 MRW
002 Assignment 2022-23 All IGNOU Assignment a vailable at our website.
IGNOU University always being in picture due to its IGNOU Assignment Date
Extended. In this post Student will Get MRW 002 Solved Assignment 2022.
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University:
IGNOU |
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Course:
Heat Transfer |
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Language:
ENGLISH |
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Semester:
2022 |
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Course:
Heat Transfer |
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Session:
2022 |
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Short
Name: MRW 002 |
Note : All questions
are compulsory and carry equal marks. This assignment is basedonall Blocks of
Computer Aided Process Planning.
Q.1 Describe the
mechanism of heat transfer through conduction. Also discuss the Fourier’s lawof
heat conduction.
Q.2 (a) The heat flow
rate through a wood board with a 5cm thickness is 500 W/m2 . Temperaturedifference
along the direction of flow of heat between the faces of the wood boardis550C.
Calculate the thermal conductivity of wood.
(b) Air at 30 0 C
flows over a hot plate (50 c x 75 cm) maintained at 200 0 Cwith thehelpofan
electric heater. The convection co-efficient is 20 W/m2 . Calculate the heat
transfer.
(5+5=10)
Q.3 Derive the
expressions for
i) rate of heat transfer
through a thin cylinder
ii)
temperaturedistribution along the radial direction of cylinder.
Q.4 Discuss, in
detail flow over a flat plate.
Q.5 Explain in detail
the properties of absorptivity, reflectivity and transmissivity
Q.6 State and derive
the expression for kirchoff’s law.
Q.7 Derive the
general expression for view factor.
Q.8 12 (twelve)
number of fins each having thermal conductivity k=75 W/mKand 0.75 mmthickness
protrude 25 mm from a cylindrical surface of 50 mm diameter and 1 mlengthplaced
in an atmosphere of 40 0C. If the cylindrical surface is maintained at 150 0
Candtheheat transfer coefficient is h=23 W/m2 . K, calculate a) rate of heat
transfer b) percentageincrease in heat transfer due to fins
Q.9 Define Reynolds
number and give the difference between free and forced convection. Alsoexplain
viscosity and its unit in SI system.
Q.10 Derive the
expression for critical thickness of insulation for a cylinder or a tube.
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MRW 002 Solved
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IGNOU MSCRWEE Solved Assignment
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