Which one of the following process is the energy efficient one for compression of air?

Isentropic compression
Polytopic compression
Isothermal compression
None of the above

LohaHridoy

4 views

2025-01-04 04:42

1 Answers

AhmedNazir

Option 3 : Isothermal compression

Concept:

The work done during compression of air is given by

w = ∫ v dP

Polytropic Process is represented by

PVⁿ = C

n = 0 ⇒ P = C ⇒ Constant Pressure Process (Isobaric Process)
n = 1 ⇒ PV = C ⇒ Constant Temperature Process (Isothermal process)
n = γ ⇒ PV^γ = C ⇒ Adiabatic Process
n = ∞ ⇒ V = C ⇒ Constant Volume Process (Isochoric process)

[ alt="RRB JE ME 46 11Q TE CH 1 Hindi Diag(Shashi) images Q6" src="//storage.googleapis.com/tb-img/production/19/06/RRB_JE_ME_46_11Q_TE_CH_1_Hindi_Diag%28Shashi%29_images_Q6.PNG">

From the figure, it is clearly evident that the area under the curve (work done) is minimum for isothermal compression and maximum for isentropic compression.

∴ Isothermal compression is the energy-efficient process for compression of air.

4 views Answered 2022-09-04 04:29

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