7- At the commencement of the compression stroke, the cylinder of an oil engine is charged with air at 96.5kPa and 65°C. Compression takes place to 1/14th of the original volume according to the law PV.35 = C. Fuel the injected, the mass of the fuel injected being 1/40th of that of the air in the cylinder, and combustion takes place at constant pressure. Taking t5he calorific value of the oil as 44000KJ/kg, determine a- the theoretical pressure and temperature after compression b- the theoretical temperature after combustion c- the fraction of the stroke at which combustion is theoretically complete, cp=1.003KJ/kg.K %3D

7- At the commencement of the compression stroke, the cylinder of an oil engine is charged with air at 96.5kPa and 65°C. Compression takes place to 1/14th of the original volume according to the law PV.35 = C. Fuel the injected, the mass of the fuel injected being 1/40th of that of the air in the cylinder, and combustion takes place at constant pressure. Taking t5he calorific value of the oil as 44000KJ/kg, determine a- the theoretical pressure and temperature after compression b- the theoretical temperature after combustion c- the fraction of the stroke at which combustion is theoretically complete, cp=1.003KJ/kg.K %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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Concept explainers

IC engines

The term "engine" indicates a mechanical device/machine used to convert input energy to a specific mechanical output. The input energy may be in the form of chemical energy, thermal energy, or so on and mechanical output is in the form of mechanical energy (work done). Generally, the engines classify into two groups which are internal combustion type and external combustion type, and further, these two types can be classified into two types that are reciprocating and rotary engines.

Question

7- At the commencement of the compression stroke, the cylinder of an oil engine is
charged with air at 96.5kPa and 65°C. Compression takes place to 1/14th of the original
volume according to the law PV1.35 = C. Fuel the injected, the mass of the fuel injected
being 1/40th of that of the air in the cylinder, and combustion takes place at constant
pressure. Taking t5he calorific value of the oil as 44000kJ/kg, determine a- the
theoretical pressure and temperature after compression b- the theoretical temperature
after combustion c- the fraction of the stroke at which combustion is theoretically
complete, cp=1.003KJ/kg.K

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