The engine in Problem 3.8 produces 57kW of brake power at 2000 RPM. Calculate:
(a) Torque. [N-M]
(b) Mechanical efficiency. [%]
(c) Break mean effective pressure. [kPa]
(d) Break specific fuel consumption. [gm/kW-hr]
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i mmohit rajputsgkeel's hv vshkiddish k
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3-8. An in-line six, 3.3-liter CI engine using light diesel fuel at an air-fuel ratio of AF = 20 operates on an air-standard Dual cycle. Half the fuel can be considered burned at con- stant volume, and half at constant pressure with combustion efficiency Tic = 100%.
Cylinder conditions at the start of compression are 60°C and 101 kPa. Compression ratio rc = 14:1.
Calculate:
(a) Temperature at each state of the cycle. [K]
(b) Pressure at each state of the cycle. [kPa]
(c) Cutoff ratio.
(d) Pressure ratio.
(e) Indicated thermal efficiency. [%]
(f) Heat added during combustion. [kJ/kg]
(g) Net indicated work. [kJ/kg]
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