A 6 cylinder 4 stroke engine operating on a diesel cycle, the diesel cycle has initial conditions of 1 kg/cm^2 and 20 C. The compression ratio is 15 and the maximum temperature is 3300 K. The engine is operating at 1500 rpm on an AF = 16, resulting in an output torque of 150 N.m and has a bsfc = 0.856 kg/kWh (Calorific value of the fuel is 44000 kJ/kg). The surrounding air conditions are 1 bar and 20 C. Find A) The net output work of the cycle [kJ] B) The air standard cycle efficiency [%] [ C) The brake mean effective pressure for the engine [kPa] D) The volumetric efficiency of the engine [%] [ E) Relative efficiency based on indicated nower [%1

A 6 cylinder 4 stroke engine operating on a diesel cycle, the diesel cycle has initial conditions of 1 kg/cm^2 and 20 C. The compression ratio is 15 and the maximum temperature is 3300 K. The engine is operating at 1500 rpm on an AF = 16, resulting in an output torque of 150 N.m and has a bsfc = 0.856 kg/kWh (Calorific value of the fuel is 44000 kJ/kg). The surrounding air conditions are 1 bar and 20 C. Find A) The net output work of the cycle [kJ] B) The air standard cycle efficiency [%] [ C) The brake mean effective pressure for the engine [kPa] D) The volumetric efficiency of the engine [%] [ E) Relative efficiency based on indicated nower [%1

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Question

A 6 cylinder 4 stroke engine operating on a diesel cycle, the diesel cycle has initial
conditions of 1 kg/cm^2 and 20 C. The compression ratio is 15 and the maximum
temperature is 3300 K. The engine is operating at 1500 rpm on an AF = 16,
resulting in an output torque of 150 N.m and has a bsfc = 0.856 kg/kWh (Calorific
value of the fuel is 44000 kJ/kg). The surrounding air conditions are 1 bar and 20
C. Find
A) The net output work of the cycle [kJ]
[
B) The air standard cycle efficiency [%]
[
]
C) The brake mean effective pressure for the engine [kPa]
[
]
D) The volumetric efficiency of the engine [%]
[
E) Relative efficiency based on indicated power [%]
[
]
F) Mechanical Efficiency of the engine [%]
[
]
Note: Wnet
mmWnet
(ma + mf)Wnet
V
mmRT
NIT
Nri
Nair

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