An ideal gas diesel engine ,that has an inlet temperature,pressure and a compression ratio of 27 degrees celsius, 102 KPa and 18:1 respectively. The maximum cycle temperature is 1,237 degrees celsius. Take specific heat at constant pressure and constant volume for air as 1,005 KJ/kg K and 0,717 KJ/kg K respectively. Calculate: 1. the absolute temperature after the isentropic expansion process to 1 decimal place and include units[absolute temperature] 2.the thermal efficiency of the cycle to 1 decimal place  3. the specific heat rejected and specific heat received during the cycle to 1 decimal place

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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An ideal gas diesel engine ,that has an inlet temperature,pressure and a compression ratio of 27 degrees celsius, 102 KPa and 18:1 respectively. The maximum cycle temperature is 1,237 degrees celsius. Take specific heat at constant pressure and constant volume for air as 1,005 KJ/kg K and 0,717 KJ/kg K respectively.

Calculate:

1. the absolute temperature after the isentropic expansion process to 1 decimal place and include units[absolute temperature]

2.the thermal efficiency of the cycle to 1 decimal place 

3. the specific heat rejected and specific heat received during the cycle to 1 decimal place

4. the cut off ratio to two decimal places

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