Thermodynamics-1 TD-1 4th Sem/ME/5307/May 2018 Diploma Paper

84

Thermo dynamics-1 TD-1 4th SemME/ 5307/RAC/ may 2018 PAPER

Get Started

Section a Thermodynamics-1 TD-1 4th SemME/5307/may 2018 PAPER

Temperature is ___________ property.

Temperature is ___________ property.

The Carnot cycle comprises of two ________ and two processes.

The Carnot cycle comprises of two ________ and two processes.

Dryness fraction of dry stream is ______________

Dryness fraction of dry stream is ______________

Otto cycle is also known as __________ cycle.

Otto cycle is also known as __________ cycle.

In a water tube boiler __________ Flows through tubes.

In a water tube boiler __________ Flows through tubes.

During an Isentropic process ________ is constant.

During an Isentropic process ________ is constant.

Conduction mainly occurs in ____________

Conduction mainly occurs in ____________

The unit of pressure in SI system is ______________

The unit of pressure in SI system is ______________

___________ Water is used for boiler.

___________ Water is used for boiler.

The work done during constant volume process is ___________________

Section B :Thermodynamics-1 TD-1 4th SemME/5307/may 2018 PAPER

State Boyle\’s Law and Avogadro\’s Law.

Explain briefly three basic modes of heat transfer.

Three basic modes of heat transfer.

Compare a fire tube boiler and a water tube boiler.

Compare a fire tube boiler and a water tube boiler.

Explain the difference between dry steam and wet steam.

Difference between dry steam and wet steam.

State Kelvin Plank\’s statement of second law of thermodynamics.

Kelvin Plank’s statement of second law of thermodynamics.

Compare a reciprocating air compressor with a rotary compressor

Compare a reciprocating air compressor with a rotary compressor.

Discuss open system, closed system and isolated system with neat sketch.

Open system, closed system and isolated system with neat sketch.

Write uses of compressed air.

Thermo dynamics-1 TD-1 4th Sem ME/ 5307/RAC/ Dec 2018 PAPER

Section c :- Thermodynamics-1 TD-1 4th SemME/5307/may 2018 PAPER

Explain construction and working of Babcock and Wilcox boiler with a neat sketch.

Construction and working of Babcock and Wilcox boiler with a neat sketch.

Explain formation of steam with neat sketch.

Formation of steam with neat sketch.

Write a short note on i. Fourier Law

Short note on i. Fourier Law

Write a Short Note ii. Diesel Cycle

Short Note ii. Diesel Cycle

Short Note on iii. Dryness Fraction

iii. Dryness Fraction

A gas is compressed polytropically from its initial volume of 0.67 m3 and pressure of 2 bars to a final pressure of 30 bars. If the initial temperature of the gas is 40oC, Find: i. Final Volume ii. Final temperature iii. Work to be done on the gas for compression. Take value of polytropic index as 1.2.

Gas is compressed polytropically from its initial volume of 0.67 m3 and pressure of 2 bars to a final pressure of 30 bars. If the initial temperature of the gas is 40oC, Find:i. Final Volumeii. Final temperatureiii. Work to be done on the gas for compression. Take value of polytropic index as 1.2.

Derive an expression for efficiency of an otto cycle.