Free MRW 002 Solved Assignment English Medium 2023-24 for July 2023 and January 2024 Session, All IGNOU Assignments (Programme Wise) · Master's Degree Programmes · Bachelor's Degree Programmmes · P.G. Diplomaa Programmes · Diploma Programmes · Certificate Programmes. IGNOU Assignment 2023-24 (UPDATED) Get Here. IGNOU Assignment Status 2023-24, Marks, Grade Card, Practical Submission
M.R.W – 002
Heat Transfer IGNOU MRW 002 Solved Assignment 2023-24
GET PDF & Handwritten (Paid)
WhatsApp
- 7838475019
NOTE: All questions
are compulsory.
Q.1 Discuss in detail
the aims of studying heat transfer and its various applications.
Q.2 a) What is
convection heat transfer? Why is it considered to be a mode of heat transfer?
b) Give two examples
each of natural and forced circulation
Q.3 A hot plate of
area 0.5 m2 is maintained at a
temperature of 600 C by a 100W electric heater when room temperature is 300 C.
The appropriate convection coefficient is 2.15 (T)1/3 W/m2K. What fraction of
the heat supplied is lost by natural convection? What happens to the rest of
the heat supplied?
Q.4 The quantity of
radiation received by earth from the sun is 1.4 kW/m2 (solar constant).
Assuming that sun is an ideal radiator, calculate the surface temperature of
the sun. The ratio of the radius of earth’s orbit to the radius of the sun is
216.
Q.5 a) What is
Fourier’s law? What are its key features?
b) Calculate the net thermal resistance and the
net heat transfer for a composite wall comprising of three walls of lengths L1,
L2, L3 and thermal conductivities K1, K2, K3 respectively in series. Area of
cross-section is the same for all three walls and is given as A.
Q.6 Derive the
expression for critical radius of insulation for a cylinder and also discuss
how thickness of insulation affects the heat transfer rate from a particular
body.
Q.7 Derive the
expression for the temperature reached by a solid at a given time ‘t’ in case
of transient heat conduction.
Q.8 Explain with the
help of a diagram the concept of hydrodynamic and thermal boundary layer for a
laminar flow over a thin flat plate. Also define critical Reynolds number and
the physical significance of Prandtl number?
Q.9 a) Explain the
following terms: i) Radiosity ii) Emission iii) Spectral Intensity
b) What is a black
body and what are its characteristics?
Q.10 State Kirchoff’s
law and derive the expression for the law. Also explain what is a gray surface?
IGNOU MRW 002 Solved
Assignment English Medium 2023-24 The Indira Gandhi National Open
University has updated the IGNOU Assignment Status
2023-24 December Session so that students can know if their submission is
completed or not. Now if you have also submitted your
Assignment/Practical/Project till 15 December 2023 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 2023-24.
For SOLVED PDF & Handwritten
WhatsApp No :- 7838475019