A reciprocating air compressor has cylinder with 30cm bore and 40cm stroke. Compressor admits air at 1 bar. 20 degree Celsius and compresses it up to 5 bar. Compressor runs at 150 rpm. Considering the compressor to be single acting, single stage and has polytropic index of 1.2. Considering the compression process to be isothermal, polytropic and adiabatic, determine the following: a. Draw the P-V diagram of these processes. b. Find out the mean effective pressure and horsepower required to run the compressor. c. Calculate the isothermal efficiencies when the compressor is of polytropic and adiabatic type.

A reciprocating air compressor has cylinder with 30cm bore and 40cm stroke. Compressor admits air at 1 bar. 20 degree Celsius and compresses it up to 5 bar. Compressor runs at 150 rpm. Considering the compressor to be single acting, single stage and has polytropic index of 1.2. Considering the compression process to be isothermal, polytropic and adiabatic, determine the following: a. Draw the P-V diagram of these processes. b. Find out the mean effective pressure and horsepower required to run the compressor. c. Calculate the isothermal efficiencies when the compressor is of polytropic and adiabatic type.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Power Transmission Elements

It is defined as the energy transfer from one location to another location. The energy will start moving from the energy generation source to the energy applied position to obtain the work output. From this method, a large amount of electric energy moves from the power station to various electrical substations.

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A reciprocating air compressor has cylinder with 30cm bore and 40cm stroke. Compressor admits
air at 1 bar. 20 degree Celsius and compresses it up to 5 bar. Compressor runs at 150 rpm.
Considering the compressor to be single acting, single stage and has polytropic index of 1.2.
Considering the compression process to be isothermal, polytropic and adiabatic, determine the
following:
a. Draw the P-V diagram of these processes.
b. Find out the mean effective pressure and horsepower required to run the compressor.
c. Calculate the isothermal efficiencies when the compressor is of polytropic and adiabatic type.

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Step 1: Given Data

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Step 2: a) P-V diagrams

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Step 3: b) Calculating the mean effective pressure and power required

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Step 4: c) Calculating the isothermal efficiency

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