**MRW
002 Solved Assignment 2022-23**

**HEAT
TRANSFER**

*MRW 002 Solved Assignment 2021-22 : All assignments are in PDF format which would be send on email/WhatsApp (9958676204) just after payment.*

**Course
Code : MRW 002**

**Last
Date of Submission :May 15, 2022**

**Weightage
: 30%**

**Maximum
Marks : 100
**

**Note : All questions are compulsory and carry equal
marks. This assignment is based on all Blocks of Computer Aided Process
Planning.**

**Q.1 Describe the mechanism of heat transfer through
conduction. Also discuss the Fourier’s law of heat conduction.**

**Q.2 (a) The heat flow rate through a wood board with a
5cm thickness is 500 W/m2 . Temperature difference along the direction of flow
of heat between the faces of the wood board is 55 0 C. 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 C with the help of an 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) temperature distribution 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/mK and 0.75 mm thickness protrude 25 mm from a cylindrical
surface of 50 mm diameter and 1 m length placed in an atmosphere of 40 0C. If
the cylindrical surface is maintained at 150 0 C and the heat transfer
coefficient is h=23 W/m2 . K, calculate a) rate of heat transfer b) percentage
increase in heat transfer due to fins**

**Q.9 Define Reynolds number and give the difference
between free and forced convection. Also explain viscosity and its unit in SI
system.**

**Q.10 Derive the expression for critical thickness of
insulation for a cylinder or a tube.**

*MRW 002
Solved Assignment 2021-22 : All assignments are in PDF format which would be
send on email/WhatsApp (9958676204) just after payment.*

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had successfully submitted their Assignments to their allocated study centers
can now check their Assignment Status. Alongside --assignment status, they will
also checkout their assignment marks & result. All this is often available
in a web mode. After submitting the assignment, you'll check you MRW 002 Solved
Assignment 2022-23 only after 3-4 weeks. MRW 002 Solved Assignment 2022-23 it'd
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