Download GTU (Gujarat Technological University Ahmedabad) B.Tech/BE (Bachelor of Technology/ Bachelor of Engineering) 2020 Summer 4th Sem 2140907 Applied Thermal And Hydraulic Engineering Previous Question Paper

Enrolment No.___________

**GUJARAT TECHNOLOGICAL UNIVERSITY**

**BE - SEMESTER? IV EXAMINATION ? SUMMER 2020**

**Subject Code: 2140907**

**Date:26/10/2020**

**Subject Name: Applied Thermal and Hydraulic Engineering**

**Time: 10:30 AM TO 01:00 PM**

**Total Marks: 70**

**Instructions:**

**1. Attempt all questions.**

**2. Make suitable assumptions wherever necessary.**

**3. Figures to the right indicate full marks.**

**Q.1 (a)**List the main component of Steam Power Plant and Describe the function of

**03**

a condenser in steam power plant.

**(b)**Explain briefly the various modes of Heat Transfer with example.

**04**

**(c)**Explain with T-S and p-V diagram of Brayton cycle for Gas turbine Power

**07**

plant.

**Q.2 (a)**Define Co-efficient of performance and 1 Ton of refrigeration (TR).

**03**

**(b)**In a constant pressure open cycle gas turbine air enters the compressor a 1

**04**

bar and 17 where it is compressed to a pressure ratio of 7. The gases enter

the gas turbine at 740 and expand to original pressure. Calculate Turbine

work output and Compressor work Input. Assume, =1.4. Cp=1.0 kj/kg k for

air & gases Neglect the mass of fuel.

**(c)**Describe the simple vapour compression refrigeration system with T-S and

**07**

P-H Diagram.

**OR**

**(c)**Explain working of Rankine cycle with its P-V, T-S and h-s diagrams.

**07**

**Q.3 (a)**Define Natural and force convection.

**03**

**(b)**State and derive Fourier's law of conduction heat transfer.

**04**

**(c)**Deduce the expression for conduction heat transfer through a composite wall.

**07**

**OR**

**Q.3 (a)**Define absorptivity, reflectivity and transmissivity.

**03**

**(b)**Explain different types of fins and their application.

**04**

**(c)**Explain with neat diagram, the arrangement and working of parallel flow heat

**07**

exchanger.

**Q.4 (a)**Define the term: Specific gravity, kinematic viscosity, mass density.

**03**

**(b)**Explain the Pascal's law with usual notation.

**04**

**(c)**Classificati

on of manometers and explain U-tube differential manometer.

**07**

**OR**

**Q.4 (a)**List the assumptions which are made while deriving Bernoulli's equation.

**03**

**(b)**Explain the surface tension.

**04**

**(c)**Deduce the Euler's equation of motion along a stream line.

**07**

**Q.5 (a)**Classification of reciprocating pump.

**03**

**(b)**Define NPSH? State its importance.

**04**

**(c)**Explain with neat sketch the function of main component of centrifugal

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pump.

**OR**

**Q.5 (a)**Define hydraulic turbine and classify hydraulic turbine.

**03**

**(b)**Explain draft tube and its importance.

**04**

**(c)**Explain with neat sketch the Kaplan turbine.

**07**

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This post was last modified on 04 March 2021