In an unused area of test facility, lies two internal combustion engines that were brought in for assessment several years ago. Using what little information has been found, determine the relative efficiency of each. Take ϒ for air is 1.4. compression Ignition Engine Assumed to be operating n an ideal air standard diesel cycle, it has a compression ratio of 6 and a cut off ratio of 3.6, the maximum cycle temperature is 1400 0C and the minimum cycle temperature is 75 0C Spark ignition Engine Due to lack of other information, it is assumed to be operating on the ideal air standard Otto cycle, this four-cylinder engine has a swept volume of 1.4 litres and the clearance volume in each cylinder is 70 cm3. The inlet temperature of the air is 270C and the maximum cycle temperature is 1900 0C. Having determined the efficiency of different above engines, you should review these efficiencies by comparing them with each other and comparing values with published efficacy data for these types of engines. please give some attention while claculating the compression ratio. because the the swept volume given for four cylinder engine.
In an unused area of test facility, lies two internal combustion engines that were brought in for assessment several years ago. Using what little information has been found, determine the relative efficiency of each.
Take ϒ for air is 1.4.
compression Ignition Engine
Assumed to be operating n an ideal air standard diesel cycle, it has a compression ratio of 6 and a cut off ratio of 3.6, the maximum cycle temperature is 1400 0C and the minimum cycle temperature is 75 0C
Spark ignition Engine
Due to lack of other information, it is assumed to be operating on the ideal air standard Otto cycle, this four-cylinder engine has a swept volume of 1.4 litres and the clearance volume in each cylinder is 70 cm3. The inlet temperature of the air is 270C and the maximum cycle temperature is 1900 0C.
Having determined the efficiency of different above engines, you should review these efficiencies by comparing them with each other and comparing values with published efficacy data for these types of engines.
please give some attention while claculating the compression ratio. because the the swept volume given for four cylinder engine.
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