Q.1::12 kg of air per minute is delivered by a centrifugal air compressor It enters the compressor at a velocityof 12 m/s with a pressure of 1 bar and specific volume of 0. 5 m²/kg and leaves at a velocity of 90 m/swith a pressure of 8 bar and specific volume of 0.14 m/kg. The increase in enthalpy of air passingthrough the compressor is (hz-h: = 150 kJ/kg) and heat loos to the surroundings at a rate of 700kJ/min. Assume the inlet and discharge line are at the same level. Answer the following:a. What are the main assumptionsb. Calculate the power required to drive the compressor, in kWc. Calculate the ratio of inlet and outlet pipe diameter?Air outBoundaryCentrifugalcompressordiAir in

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12 kg of air per minute is delivered by a centrifugal air compressor It enters the compressor at a velocity of 12 m/s with a pressure of 1 bar and specific volume of 0. 5 m/kg and leaves at a velocity of 90 m/s with a pressure of 8 bar and specific volume of 0.14 m/kg. The increase in enthalpy of air passing through the compressor is (h-h; = 150 kJ/kg) and heat loos to the surroundings at a rate of 700 kJ/min. Assume the inlet and discharge line are at the same level. Answer the following; a. What are the main assumptions b. Calculate the power required to drive the compressor, in kW c. Calculate the ratio of inlet and outlet pipe diameter? Boundary Air out Centrifugal compressor di Air in

12 kg of air per minute is delivered by a centrifugal air compressor It enters the compressor at a velocity of 12 m/s with a pressure of 1 bar and specific volume of 0. 5 m/kg and leaves at a velocity of 90 m/s with a pressure of 8 bar and specific volume of 0.14 m/kg. The increase in enthalpy of air passing through the compressor is (h-h; = 150 kJ/kg) and heat loos to the surroundings at a rate of 700 kJ/min. Assume the inlet and discharge line are at the same level. Answer the following; a. What are the main assumptions b. Calculate the power required to drive the compressor, in kW c. Calculate the ratio of inlet and outlet pipe diameter? Boundary Air out Centrifugal compressor di Air in

College Physics

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ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Diatomic Gas

Molecule, is a collection of two or more atoms together (which constitute the smallest observable unit) into a pure material. There are some ways to represent the structure of a molecule. Factor symbols represent atoms in Lewis structures, and dots represent electrons that accompany them. A pair of mutual electrons (covalent bond) may be represented by a single dash. The ball-and-stick model depicts the spatial structure of the atoms better.

Question

Q.1::
12 kg of air per minute is delivered by a centrifugal air compressor It enters the compressor at a velocity
of 12 m/s with a pressure of 1 bar and specific volume of 0. 5 m²/kg and leaves at a velocity of 90 m/s
with a pressure of 8 bar and specific volume of 0.14 m/kg. The increase in enthalpy of air passing
through the compressor is (hz-h: = 150 kJ/kg) and heat loos to the surroundings at a rate of 700
kJ/min. Assume the inlet and discharge line are at the same level. Answer the following:
a. What are the main assumptions
b. Calculate the power required to drive the compressor, in kW
c. Calculate the ratio of inlet and outlet pipe diameter?
Air out
Boundary
Centrifugal
compressor
di
Air in

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