assignment-1 thermodynamics basic concept
TRANSCRIPT
VIDHYADEEP INSTITUTE OF ENGINEERING AND TECHNOLOGY
Vidhyadeep Campus, Anita (Kim), Ta. Olpad, Dist. Surat
1 | P a g e
Subject Name: ET Subject Code: 2131905 Sem: 3RD (2016)
Assignment-1 Thermodynamics – Basic Concept
Q.1 Define Thermodynamic system. Also explain different thermodynamic systems with
appropriate examples.
Q.2 Discuss macroscopic and microscopic point of view in thermodynamics
Q.2 Differentiate between Intensive and Extensive properties of system.
Q.3 Explain concept of Quasi-static process with necessary figure.
Q.4 Explain flow work, shaft work and paddle wheel work transfer.
Q.5 Define the followings.
i) Thermodynamic equilibrium
ii) Reversible and irreversible processes
iii) One Pascal pressure and one bar pressure
iv) Di-thermal boundary of a thermodynamic system
v) Point function and Path function
vi) Critical points of pure substance
vii) Triple point
Q.6 Recognize whether the system is open, closed or isolated
i) A tube of bicycle filled with air
ii) A jet engine in flight
iii) Water pump
iv) Car battery
v) An Electric geyser
vi) Thermos flask
Q.7 Explain Zeroth law of thermodynamics
Subject Coordinator H.O.D. (Mech)
VIDHYADEEP INSTITUTE OF ENGINEERING AND TECHNOLOGY
Vidhyadeep Campus, Anita (Kim), Ta. Olpad, Dist. Surat
1 | P a g e
Subject Name: ET Subject Code: 2131905 Sem: 3RD (2016)
Assignment-2 First Law of Thermodynamics
Q.1 Define first law of thermodynamics. Also define internal energy of the system and
show that the internal energy is properties of the system.
Q.2 What do you mean by PPM and Explain “perpetual motion machines of first kind”
Q.3 Derive the general energy equation for steady flow process also describe
What are the requirements of a steady flow process?
Q.4 Explain engineering application of steady flow energy equation.
Q.5 Obtain the steady flow energy equation for
(i) Nozzle
(ii) Boiler
(iii)Reciprocating air compressor
(iv) Water turbine
(v) Centrifugal water pump
(vi) Steam turbine
(vii) Gas turbine
(viii) Water turbine
Q.6 Write steady flow energy equation and reduce the same for turbine, nozzle,
automobile, radiator, and throttling device. Clearly state the assumptions made in
each case.
Q.7 What is unsteady state flow process? Explain bottle filling process.
Q.8 Explain flow process and non-flow process and differ between a non-flow process
and steady flow process.
Q.9 Explain the significance of −∫ 𝑣2
1dp
Q.10 For an isothermal steady flow and non-flow processes, prove that, −∫ 𝑣2
1dv =
−∫ 𝑣2
1𝑑𝑝. Also state assumption made.
Q.11 Prove that reversible adiabatic lines are steeper than isothermal lines on p-V plane.
Subject Coordinator H.O.D. (Mech)
VIDHYADEEP INSTITUTE OF ENGINEERING AND TECHNOLOGY
Vidhyadeep Campus, Anita (Kim), Ta. Olpad, Dist. Surat
1 | P a g e
Subject Name: ET Subject Code: 2131905 Sem: 3RD (2016)
Assignment-3 Second Law of Thermodynamics
Q.1 Write limitation of the first law of thermodynamics. Explain the second law of
thermodynamics.
Q.2 Prove the equivalency of Kelvin-Plank and Clausius statements.
Q.3 Discuss perpetual motion machine of second kind.
Q.4 State and prove Carnot theorem for heat engine. Also write the statements of Carnot
theorem in context of refrigerator or heat pump.
Q.5 State and prove Carnot’s theorem.
Q.6 Prove that all reversible engines working between the two constant temperature
reservoirs have the same efficiency.
Q.7 Explain the thermodynamic temperature scale and show that it is independent of
working substance.
Q.8 Carnot cycle is not practical. Justify.
Q.9 Show that the negative absolute temperature scale is impossible.
Subject Coordinator H.O.D. (Mech)
VIDHYADEEP INSTITUTE OF ENGINEERING AND TECHNOLOGY
Vidhyadeep Campus, Anita (Kim), Ta. Olpad, Dist. Surat
1 | P a g e
Subject Name: ET Subject Code: 2131905 Sem: 3RD (2016)
Assignment-4 Entropy
Q.1 Prove that entropy is a property of system.
Q.2 Define Clausius inequality and prove it.
Q.3 Explain principle of increase of entropy.
Q.4 Derive an expression for the change in entropy of the universe.
Q.5 With usual notations prove that ∮𝛿𝑄
𝑇≤ 0.
Q.6 Define and explain reversible and irreversible process with suitable example.
Q.7 Derive equation for maximum work obtainable from two finite bodies at temperature
T1 and T2.
Subject Coordinator H.O.D. (Mech)
VIDHYADEEP INSTITUTE OF ENGINEERING AND TECHNOLOGY
Vidhyadeep Campus, Anita (Kim), Ta. Olpad, Dist. Surat
1 | P a g e
Subject Name: ET Subject Code: 2131905 Sem: 3RD (2016)
Assignment-4 Exergy and Irreversibility
Q.1 Write note on available and unavailable energy.
Q.2 Explain available energy referred to a cycle.
Q.3 Explain the concept of decrease in available energy when heat is transferred through
a finite temperature difference with the aid of temperature-entropy diagram.
Q.4 Derive an expression for availability of a non-flow and steady flow open process
Q.5 Explain reversibility and irreversibility. What are the causes of irreversibility?
Q.6 State the types of irreversibility. What is their effect?
Subject Coordinator H.O.D. (Mech)
VIDHYADEEP INSTITUTE OF ENGINEERING AND TECHNOLOGY
Vidhyadeep Campus, Anita (Kim), Ta. Olpad, Dist. Surat
1 | P a g e
Subject Name: ET Subject Code: 2131905 Sem: 3RD (2016)
Assignment-6 Vapour Power Cycle
Q.1 Explain Carnot cycle with schematic and T-S diagram and derive the efficiency of a
Carnot cycle also give reason, why is Carnot cycle not practicable for a steam power
plant?
Q.2 Draw Rankine cycle on three usual thermodynamic planes and explain the processes
involved. Also derive an expression for its thermal efficiency with and without pump
work.
Q.3 Write comparison of Carnot and Rankine cycle.
Q.4 How actual vapour cycle differ from an ideal vapour cycle. Explain in detail.
Q.5 Discuss with T-S diagram, the effect of various operating variables on efficiency of
Rankine cycle.
Q.6 Explain regenerative feed heating by bleeding process used for steam turbine. What
is the effect of number of heaters on thermal efficiency of steam power plant?
Q.7 Explain Reheat-Regenerative feed heating cycle.
Subject Coordinator H.O.D. (Mech)
VIDHYADEEP INSTITUTE OF ENGINEERING AND TECHNOLOGY
Vidhyadeep Campus, Anita (Kim), Ta. Olpad, Dist. Surat
1 | P a g e
Subject Name: ET Subject Code: 2131905 Sem: 3RD (2016)
Assignment-7 Gas Power Cycle
Q.1 Derive expression for air standard efficiency of Otto cycle.
Q.2 Compare Otto, Diesel and Dual cycle for
1. Same compression ratio and heat supplied
2. Same maximum pressure and temperature
3. Constant maximum pressure and heat input
Q.3 Derive expression for air standard efficiency of Diesel cycle.
Q.4 Derive expression for air standard efficiency of Dual cycle.
Q.5 Derive expression for air standard efficiency of Brayton cycle.
Q.6 Derive an expression for optimum intermediate pressure in an open cycle gas turbine
with reheating.
Q.7 Discuss in detail, the means of improving the specific output and thermal efficiency
of simple open cycle gas turbine plant.
Q.8 Draw the schematic diagram of a simple gas turbine cycle with intercooling,
regeneration and reheating. Draw also T-S diagram of the cycle.
Subject Coordinator H.O.D. (Mech)
VIDHYADEEP INSTITUTE OF ENGINEERING AND TECHNOLOGY
Vidhyadeep Campus, Anita (Kim), Ta. Olpad, Dist. Surat
1 | P a g e
Subject Name: ET Subject Code: 2131905 Sem: 3RD (2016)
Assignment-8 Properties of Gas and Gas Mixture
Q.1 Explain Dalton’s law of partial pressure and Avogadro’s law in detail.
Q.2 Derive Vander wall’s equation.
Q.3 Write shot note on Reduced properties.
Q.4 Write shot note on Law of corresponding states.
Q.5 Write short note on Gibbs Dalton ‘s law.
Q.6 Write short note on Adiabatic mixing of perfect gases.
Subject Coordinator H.O.D. (Mech)