Question

a six-cylinder four stroke automobile engine is being designed to produce 75 kW at 2000 rpm...

a six-cylinder four stroke automobile engine is being designed to produce 75 kW at 2000 rpm with a bsfc of 300 g/kWh and a bmep of 12 bar. the engine is to have equal bore and stroke, and fueled with gasoline with a heat of combustion of 44510 kj/kg. (a) what should be the deisng displacement volume and bore? (b) what is the fuel consumption per cycle per cylinder? (c) what is the brake thermal efficiency?

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A high performance 4 stroke supercharged gasoline engine is being designed. The target specifications are as...
A high performance 4 stroke supercharged gasoline engine is being designed. The target specifications are as follows: IMEP: 31 bar at peak power bsfc:    233 g/kWh isfc:     205 g/kWh Bore to stroke ratio:    1..04 Number of cylinders: 4 Maximum mean piston speed: 24 m/s Compression ratio: 10:1 Simulation results indicate that the indicated work per cylinder per cycle needs to be 1400 J/cyl/cyc. Based on the provided information, finalize the engine design for the following parameters: Bore and stroke (mm)...
A high performance 4 stroke supercharged gasoline engine is being designed. The target specifications are as...
A high performance 4 stroke supercharged gasoline engine is being designed. The target specifications are as follows: IMEP: 31 bar at peak power bsfc:    233 g/kWh isfc:     205 g/kWh Bore to stroke ratio:    1..04 Number of cylinders: 4 Maximum mean piston speed: 24 m/s Compression ratio: 10:1 Simulation results indicate that the indicated work per cylinder per cycle needs to be 1400 J/cyl/cyc. Based on the provided information, finalize the engine design for the following parameters: Bore and stroke (mm)...
A four-cylinder, four-stroke engine is built into an automobile. Within each cylinder of the engine, the...
A four-cylinder, four-stroke engine is built into an automobile. Within each cylinder of the engine, the processes can be modeled as an air-standard Otto cycle. At the beginning of the compression process, the cylinder volume is .559 L. The temperature and pressure are 330 K and 1.5 bar, respectively. In the cycle, the maximum temperature is 2200 K when the engine operates at 3000 RPM. (4-stroke engine, 2 rotations per cycle, MW of air = 28.97 kg/kmol) If the engine...
A V-8 four-stoke petrol engine is required to give 186.5 kW at 4400 rev/min. The brake...
A V-8 four-stoke petrol engine is required to give 186.5 kW at 4400 rev/min. The brake thermal efficiency can be assumed to be 32% at the compression ratio of 9/1. The air-fuel ratio is 12/1 and the volumetric efficiency at this speed is 69%. If the stroke to bore ratio is 0.8, determine the engine displacement required and the dimensions of the bore and stroke. The Qnet,v of the fuel is 44 200 kJ/kg, and the free air conditions are...
1. An eight-cylinder, two stroke cycle diesel engine with 13.6 cm bore and 16.1 cm stroke...
1. An eight-cylinder, two stroke cycle diesel engine with 13.6 cm bore and 16.1 cm stroke produces 97 kW of brake power at 2800 RPM. Compression ratio rc = 15.5:1
Calculate: * a) Engine displacement [m3 and cm3] 
 * b) Torque [N-m] 
 * c) Brake mean effective pressure [kPa] 
 * d) Clearance volume of one cylinder [m3 and cm3] 

. A twin-cylinder 2-stroke engine has a swept volume of 150 cm3 . The maximum power...
. A twin-cylinder 2-stroke engine has a swept volume of 150 cm3 . The maximum power output is 19 kW at 11,000 rpm. At this condition, the bsfc is .11kg/MJ and the gravimetric air/fuel ratio is 12:1. If ambient test conditions are 10 C, 1.03 bar and the fuel has a calorific value of 44 MJ/kg, calculate the bmep, the arbitrary overall efficiency and the volumetric efficiency.
A 4 cylinder 4 stroke 3.2 L diesel engine with bore = 11 cm and stroke...
A 4 cylinder 4 stroke 3.2 L diesel engine with bore = 11 cm and stroke =12.4 cm. the crank radius is 5.5 cm and with a connecting rod length 15 cm. the compression ratio of the engine is 21 and the combustion efficiency is 96.3 %. If the average speed of the car over the running life of the engine is 65 km/h and the total traveled distance of the engine is 250000 km. note: use the engine speed...
In a certain automobile engine with an efficiency of 21.6%, combustion of gasoline in one cylinder...
In a certain automobile engine with an efficiency of 21.6%, combustion of gasoline in one cylinder releases 510 J of heat. (a) Find the work done by the system of gasoline vapor and air on the surroundings during one cycle. (b) Find the total mechanical power produced by all four cylinders, operating at 48 cycles/s, or 2880 rpm.
A naturally aspirated six cylinder, 6.128-L (374-in^3) diesel engine consumes 21.9 kg/h (48 lb/h) of fuel...
A naturally aspirated six cylinder, 6.128-L (374-in^3) diesel engine consumes 21.9 kg/h (48 lb/h) of fuel and 440 kg/h (970 lb/h) of air while running at 2400 r/min (rpm) and producing 93.8 kW (126 hp) of brake power. Assume the barometric pressure is 100 kPa (14.5 psi) and the ambient air temperature is 300 degrees K (540 degrees R). A. Calculate the theoretical air consumption of the engine. B. Calculate the volumetric efficiency. C. Calculate the air to fuel ratio....
A naturally aspirated six cylinder, 6.128-L (374-in^3) diesel engine consumes 21.9 kg/h (48 lb/h) of fuel...
A naturally aspirated six cylinder, 6.128-L (374-in^3) diesel engine consumes 21.9 kg/h (48 lb/h) of fuel and 440 kg/h (970 lb/h) of air while running at 2400 r/min (rpm) and producing 93.8 kW (126 hp) of brake power. Assume the barometric pressure is 100 kPa (14.5 psi) and the ambient air temperature is 300 degrees K (540 degrees R). A. Calculate the theoretical air consumption of the engine. B. Calculate the volumetric efficiency. C. Calculate the air to fuel ratio....