In an air-standard Diesel cycle, the compression ratio is 17. The cutoff ratio, the ratio of the volume after heat addition to that before heat addition (V/V), is 2.5:1 The air conditions at the beginning of compression are 101 kPa and 300°K Determine (a) the thermal efficiency; (b) the heat added per kg of air, (c) the mear: effective pressure.

In an air-standard Diesel cycle, the compression ratio is 17. The cutoff ratio, the ratio of the volume after heat addition to that before heat addition (V/V), is 2.5:1 The air conditions at the beginning of compression are 101 kPa and 300°K Determine (a) the thermal efficiency; (b) the heat added per kg of air, (c) the mear: effective pressure.

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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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

In an air-standard Diesel cycle, the compression ratio is 17. The cutoff ratio, the
ratio of the volume after heat addition to that before heat addition (V/V,), is 2.5:1.
The air conditions at the beginning of compression are 101 kPa and 300°K.
Determine (a) the thermal efficiency; (b) the heat added per kg of air, (c) the mean
effective pressure.

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