A compression ignition engine for a small truck is to operate on an air-standard Dual cycle with
Question:
A compression ignition engine for a small truck is to operate on an air-standard Dual cycle with a compression ratio of r c = 18. Due to structural limitations, maximum allowable pressure in the cycle will be 9000 kPa. Light diesel fuel is used at a fuel-air ratio of FA = .054. Combustion efficiency can be considered 100%. Cylinder conditions at the start of compression are 50 degrees C and 98 kPa.
Calculate:
(a) Maximum indicated thermal efficiency possible with these conditions. [%]
(b) Peak cycle temperature under conditions of part (a). [degrees C]
(c) Minimum indicated thermal efficiency possible with these conditions. [%]
(d) Peak cycle temperature under conditions of part (c). [degrees C]
Thermodynamics An Engineering Approach
ISBN: 978-0073398174
8th edition
Authors: Yunus A. Cengel, Michael A. Boles