Example 18.10 The static pressure ratio across the rotor is 2.5:1. Static inlet pressure and temperature are 0.6 bar and 5°C respectively. The air-fuel ratio is 13:1 and the engine consumes 0.04 kg fuel/s. For the air-fuel mixture take y= 1.39 and c, = 1.005 kJ/kg K. The isentropic efficiency of the compressor is 84%. Estimate the power required to drive the compressor. Taking the exit velocity from the compressor as 120 m/s and assuming that the mixture is adiabatically brought to rest in the engine cylinders, estimate the stagnation temperature and pressure of the mixture at the beginning of the compression stroke in the engine cylinder. A rotary compressor is used to supercharge a petrol engine. %3D
Example 18.10 The static pressure ratio across the rotor is 2.5:1. Static inlet pressure and temperature are 0.6 bar and 5°C respectively. The air-fuel ratio is 13:1 and the engine consumes 0.04 kg fuel/s. For the air-fuel mixture take y= 1.39 and c, = 1.005 kJ/kg K. The isentropic efficiency of the compressor is 84%. Estimate the power required to drive the compressor. Taking the exit velocity from the compressor as 120 m/s and assuming that the mixture is adiabatically brought to rest in the engine cylinders, estimate the stagnation temperature and pressure of the mixture at the beginning of the compression stroke in the engine cylinder. A rotary compressor is used to supercharge a petrol engine. %3D
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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Transcribed Image Text:Example 18.10
The static pressure ratio across the rotor is 2.5:1. Static inlet pressure and
temperature are 0.6 bar and 5°C respectively. The air-fuel ratio is 13:1 and the engine
consumes 0.04 kg fuel/s. For the air-fuel mixture take y= 1.39 and c, = 1.005 kJ/kg
K. The isentropic efficiency of the compressor is 84%. Estimate the power required
to drive the compressor. Taking the exit velocity from the compressor as 120 m/s and
assuming that the mixture is adiabatically brought to rest in the engine cylinders,
estimate the stagnation temperature and pressure of the mixture at the beginning of
the compression stroke in the engine cylinder.
A rotary compressor is used to supercharge a petrol engine.
%3D
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