A four-cylinder, four-stroke, 3.2-L compression-ignition_engine operates on the ideal diesel cycle with a compression ratio of 19. The air is at 95 kPa and 67°C at the beginning of the compression process and the engine speed is 1750 rpm. The engine uses light diesel fuel with a heating value of 42,500 kJ/kg, an air-fuel ratio of 28, and a combustion efficiency of 98 percent.

A four-cylinder, four-stroke, 3.2-L compression-ignition_engine operates on the ideal diesel cycle with a compression ratio of 19. The air is at 95 kPa and 67°C at the beginning of the compression process and the engine speed is 1750 rpm. The engine uses light diesel fuel with a heating value of 42,500 kJ/kg, an air-fuel ratio of 28, and a combustion efficiency of 98 percent.

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

A four-cylinder, four-stroke, 3.2-L compression-ignition_engine operates on the
ideal diesel cycle with a compression ratio of 19. The air is at 95 kPa and 67°C at
the beginning of the compression process and the engine speed is 1750 rpm. The
engine uses light diesel fuel with a heating value of 42,500 kJ/kg, an air-fuel ratio of
28, and a combustion efficiency of 98 percent.

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Calculate the maximum cycle temperature of a diesel cycle operating under air-standard circumstances. The compression ratio of the cycle is 16 and the cut-off ratio is 2.5.
1. A six-cylinder, four stroke, 3.2-L compression ignition engine operate on the diesel cycle with a compression ratio of 19. The air is at 95 kPa and 67°C at the beginning of the compression process and the engine speed is 1750 rpm. The engine uses light diesel fuel with heating value of 42,500 kJ/kg, an air-fuel ratio of 28 and a combustion efficiency of 98%. Using the constant specific heats at 850K determine the following: a) Maximum temperature b) Work net, Wnet c) Net Power output (kW) d) Specific fuel consumption in g/kWh, defined as the ratio of the mass of the fuel consumed to the net work output produced. *Constant specific heats at 850K: k=1.349, cp=1.110 kJ/kg-K, cv=0.823 kJ/kg-K, R=0.287 kJ/kg-K
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Hi cutie,
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