Free MRW 002 Solved Assignment English Medium 2022-23 for July 2022 and January 2023 Session, All IGNOU Assignments (Programme Wise) · Master's Degree Programmes · Bachelor's Degree Programmmes · P.G. Diplomaa Programmes · Diploma Programmes · Certificate Programmes. IGNOU Assignment 2022-203 (UPDATED) Get Here. IGNOU Assignment Status 2022-23, Marks, Grade Card, Practical Submission
M.R.W – 002
ENERGY
CONVERSION IGNOU MRW 002 Solved
Assignment 2022-23
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NOTE: All questions are
compulsory.
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.
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 Assignment English Medium 2022-23 The Indira Gandhi National
Open University has updated the IGNOU Assignment Status
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Assignment/Practical/Project till 15 December 2022 then you must be worried
about the Assignment Status and Grade Card. So we decided to come up with https://ignouadmission.samarth.edu.in/
Assignment
2022-23.