A diesel engine has a compression ratio of 14. The air-to-fuel ratio is 28 and the temperature at the end of the compression stroke is 800 K. Assuming that the combustion process takes place at constant pressure, calculate the ratio between cylinder volumes after and before the combustion process (cut-off ratio). Take cp = 1000+ 0.001T [J/kg.K], where T is the air temperature in K. Take the heating value of diesel to be 42.5 MJ/kg. The cut-off ratio: signment within 19

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A diesel engine has a compression ratio of 14. The air-to-fuel ratio is 28 and the temperature at the end of the compression stroke is 800 K.
Assuming that the combustion process takes place at constant pressure, calculate the ratio between cylinder volumes after and before the
combustion process (cut-off ratio). Take cp = 1000+ 0.001T [J/kg.K], where T is the air temperature in K. Take the heating value of diesel to be
42.5 MJ/kg.
. The cut-off ratio:
to "Midterm Exam File Upload" assignment within 10
Transcribed Image Text:A diesel engine has a compression ratio of 14. The air-to-fuel ratio is 28 and the temperature at the end of the compression stroke is 800 K. Assuming that the combustion process takes place at constant pressure, calculate the ratio between cylinder volumes after and before the combustion process (cut-off ratio). Take cp = 1000+ 0.001T [J/kg.K], where T is the air temperature in K. Take the heating value of diesel to be 42.5 MJ/kg. . The cut-off ratio: to "Midterm Exam File Upload" assignment within 10
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