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Old June 20th, 2014, 12:54 PM
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Default Cochin University, B.Tech ME 3rd Semester, Thermodynamics and Heat Transfer Exam pape

Give me question paper for Cochin University, B.Tech in Mechanical Engineering, 3rd Semester, Thermodynamics and Heat Transfer Examination ??
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  #2  
Old June 21st, 2014, 10:19 AM
Nitin Sharma
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Default Re: Cochin University, B.Tech ME 3rd Semester, Thermodynamics and Heat Transfer Exam

Here I am giving you question paper for Cochin University, B.Tech in Mechanical Engineering, 3rd Semester, Thermodynamics and Heat Transfer Examination in PDF file attached with it so you can get it easily.

M. (a) Explain the mechanism of heat flow by natural
convection. (8)
@) Define effectiveness of a heat exchanger. (4)
(c) Derive the effectiveness - NTU relationship for a
parallel flow heat exchanger. (8)
OR
X. (a) Define:
(i) Reynold's number
(ii) Prandtl number
(iii) Nusselt number (6)
I. (a) Explain the following:
(i) Thermodynamic system
(ii) Thmodnyamic Equilibrium
(iii) Zeroth law of thermodynamics
(iv) Joule-'Ihomsoa effect. (12)

(h) An engine cylinder has a piston of area 0.12m2 and
contains gas at a pressure of 1.SMPa. The gas expands
according to a process which i's represented by a straight
Line on a pressure-volume diagram. The final pressure is
0.15MPa. Calculate the work done by the gas on the
piston if the stroke is 0.3m. (8)

OR
n. (a) Derive the steady flow energy equation. How this
equation is applicable to turbine and compressor? (10)
(h) State and prove Camot's theorem. (10)
III. (a) Derive the Tds equations. (10)
(b) Explain the Rankine cycle showing it on P - V and
T - S diagrams. Obtain an expression for efficiency
of the cycle. (10)





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