Thursday, November 5, 2015

Kurukshetra University Thermodynamics BTech MECH 2014 Question Paper

Looking for Thermodynamics Old Question Papers from Kurukshetra University ? You can find here one of the question paper asked in the exam year 2014. Download this question paper titled Kurukshetra University B.Tech Mechanical Engineering Thermodynamics in Text form provided below.


Question Paper University : Kurukshetra University
Degree of QP : B.Tech Mechanical Engineering
Subject : Thermodynamics
Exam Year of the Question Paper : 2014
Question Paper Type; Old Question Papers / Previous Years Exam Papers

Roll No.………  Total page: 03
BT-3/D-14
THERMODYNAMICS
ME-201E
TIME : THREE HOUR] [Maximum Marks : 100
Note: Attempt Five questions in all, selecting at least one question from each unit. All questions carry equal marks. Use Of only scientific calculator allowed. Use of only scientific calculator allowed. Use of steam table and Moliere charts allowed

Unit I
1. (a) Define and explain thermodynamic system ,surrounding and boundary .
(b) Explain the concept of thermodynamic equilibrium .
2. (a) Explain the concept of an ideal gas
(b) The average skin temperature of a person standing in a room is 35 C. The walls of this room are at 25 C .what is the rate of radiation energy flux from this person if the emissivity of the skin is assumed to be 0.96

Unit II
3. A heat exchanger is to be designed for cooling oil flowing at a rate of 0.7 kg/s from 170 C to 110 C. The air at inlet temperature of 25 C enters into the heat exchanger and leaves at 100 C . The heat exchanger is well insulated .Assuming no change in kinetic and potential energy across both hot and cold streams , determine the mass flow rate of air .Assume CP, OIL = 1.8 KJ/ Kg –K , Cp air = 1.005 KJ/kg-k
4 (a) Explain the limitation of First Law
(b) An inventor claims to have been designed and developed a new engine that can produce 45 kW of power by absorbing 52 Kw of heat from a thermal reservoir at 700 k while rejecting heat from a thermal reservoir at 700 k while rejecting heat to another thermal reservoir at 300K ascertain validity of the claim

Unit III
5 (a) Explain the principle of Entropy .
(b) Explain third law of thermodynamics.
6 In a power plant , 1 kg\s of superheated steam enters into steam turbine at 3 MPa and 300 C and leaves it after getting expanded with saturated vapour at 10 KPa . assuming the flow to be steady , determine (i) actual power output , (ii) maximum possible output , (iii) second law efficiency (iv) availability of steam at inlet conditions and (v) isentropic efficiency ( first law efficiency ) . The surrounding air is at 100 kPa and 298 K . Assume negligible changes in kinetic and potential energies.

Unit IV
7 (a) Write a note on saturated Super- heated Steam.
A (b) Explain P-V and P-T plots during steam formation
8 (a) State and explain T-ds relations
(b) Derive thermodynamic relation known as clapeyron equation 
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