A diesel engine gives an output torque of 1,740 ft-lbf at an engine speed of 1,200...
A diesel engine gives an output torque of 1,740 ft-lbf at an engine speed of 1,200 rpm. If the fuel consumption rate was 31.5 gal/hr, what is the Input , output power and overall efficiency of the engine?
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A diesel engine gives an output torque of 1,740 ft-lbf at an
engine speed of 1,200...
Air at 14.7 psia, 40 oF enters an ideal four-stroke Diesel cycle with a compression ratio...
Air at 14.7 psia, 40 oF enters an ideal four-stroke Diesel cycle with a compression ratio of 20 and a displacement of 300 in3. It runs at 2100 RPM and the maximum temperature is 3300 oF. The fuel has an energy content of 19,360 Btu/lbm. a. The power output of the engine in Hp b. The cycle thermal efficiency c. The fuel consumption rate in lbm/hr
2. Analyze an Audi 3.0-liter TDI V6 Biturbo diesel engine using an air-standard Diesel cycle that...
2. Analyze an Audi 3.0-liter TDI V6 Biturbo diesel engine using an air-standard Diesel cycle that addresses the "real" effects of non-isentropic compression/expansion, air-fuel ratio, fuel heating value, incomplete combustion, exhaust residual, and heat loss. The engine is four-stroke, has six cylinders with a compression ratio of 16.0, and develops maximum power at 4250 rpm. Assume the following: the diesel fuel heating value is Quv 42,600 kJ/kg, the air-to-fuel ratio (AF) at maximum power is 25, and the combustion efficiency...
Problem 4: A 12-cylinder, two-stroke CI diesel engine produces 2440 kW of brake power at 550...
Problem 4: A 12-cylinder, two-stroke CI diesel engine produces 2440 kW of brake power at 550 rpm using equivalence ratio o=1. The engine has a bore of 24 cm, stroke of 32 cm, volumetric efficiency of 100%. Calculate the mass flow rate of fuel into engine and brake specific fuel consumption.
Khswer: 0.52 0.A naturally-aspirated dual-fuel engine is running on methane and pilot diesel. The...
solve it
Khswer: 0.52 0.A naturally-aspirated dual-fuel engine is running on methane and pilot diesel. The or diesel supplied per cycle is 2 mg when the engine is running at 3000 rpm. What m rate is needed to maintain an overall φ value of 0.8 if the swept volume of the eng and volumetric efficiency is 85%? Consider air's molecular mass as 2897, and kg/m3 ine is 1000cc, density as 12 Answer: 6684nt
Khswer: 0.52 0.A naturally-aspirated dual-fuel engine is...
1. (30P) A twenty-cylinder MTU 4 STROKE 20V 4000 M93 marine diesel engine is designed to...
1. (30P) A twenty-cylinder MTU 4 STROKE 20V 4000 M93 marine diesel engine is designed to develop 3490 kW brake power at 1800 rpm. The bore is 170mm and stroke length is 210 mm for each cylinder and bsfc is 205 g/kWh. The calorific value of the petrol is 42 800kJ/kg. The inlet air manifold conditions are 80 kPa and 313 K. and The engine has a volumetric efficiency of 0.82. Calculate: a) Displacement (litre) b) Bmep (kPa) c) Fuel...
The output torque of a motor is 69.2 lb-ft when it operates at 950 rpm. Calculate...
The output torque of a motor is 69.2 lb-ft when it operates at 950 rpm. Calculate the losses in the machine and its efficiency if, under this condition, the power input is 10900 watts. Topic: DC MOTOR: Efficiency and Power Losses
A 4-stroke 3 litre V6 spark ignition petrol engine has a maximum power output of 100kW...
A 4-stroke 3 litre V6 spark ignition petrol engine has a maximum power output of 100kW at 5500rev/min, and a maximum torque of 236Nm at 3000rev/min. The minimum sfc is 0.090 kg/MJ at 3000 rpm, and the air flow rate is 0.068m²/s. The compression ratio is 8.9:1 and the mechanical efficiency is 90%. The engine was tested under ambient conditions of 20°C and 1 bar. Take the calorific value of fuel to be 44MJ/kg. (a) Determine the power output at...
Problem (3) (10 marks) An experiment was made on a diesel engine, works on four stroke....
Problem (3) (10 marks) An experiment was made on a diesel engine, works on four stroke. The result follows: Friction powe sed 15 kg/hr. Calorifie value of the fuel-42000 KJ/kg. Air consumption 4.75 kg/min. s is as r 10 KW, Engine speed 1750 rpm, Brake torque 327.4 J, Fuel Mass flow of cooling water-16 kg/min. Outlet temperature of the cooling water is 65.8 oC. Temperature of the exhaust gases 400°C Room temperature is 20.8℃ C,for water 4.19 KJ/kg k. C,for...
Please answer all PROBLEM 1 A three-litre four-stroke diesel engine develops 12 kW per m3 of...
Please answer all PROBLEM 1 A three-litre four-stroke diesel engine develops 12 kW per m3 of free air inducted per minute. The volumetric efficiency is 82 % at 3600 rpm referred to atmospheric condition of 1 bar and 27 oC. A rotary compressor which is mechanically coupled to the engine is used to supercharge the engine. The pressure ratio and the isentropic efficiency of the compressor are 1.6 and 75 % respectively. Calculate the percentage increase in brake power due...
In an engine performance test, two types of fuel are being used.They are diesel (D2) and...
In an engine performance test, two types of fuel are being used.They are diesel (D2) and biodiesel (B20).Tests were performed at 2500 rpm by using a four cylinder diesel engine with a diameter of 82.2 mm and 94.0 mm stroke size.Tests data are tabulated in Table 1 Table 1 Properties & test data Diesel (D2) Biodiesel (B20) Calorific value, (MJ/kg) 45.609 44.197 Viscosity @ 40°C, (mPa.s) 3.743 4.299 Density, (kg/m³) 838 850 Tourque, (Nm) 230 221 Fuel flowrate, (kg/hr) 12.89...
2. Analyze an Audi 3.0-liter TDI V6 Biturbo diesel engine using an air-standard Diesel cycle that addresses the "real" effects of non-isentropic compression/expansion, air-fuel ratio, fuel heating value, incomplete combustion, exhaust residual, and heat loss. The engine is four-stroke, has six cylinders with a compression ratio of 16.0, and develops maximum power at 4250 rpm. Assume the following: the diesel fuel heating value is Quv 42,600 kJ/kg, the air-to-fuel ratio (AF) at maximum power is 25, and the combustion efficiency...
Problem 4: A 12-cylinder, two-stroke CI diesel engine produces 2440 kW of brake power at 550 rpm using equivalence ratio o=1. The engine has a bore of 24 cm, stroke of 32 cm, volumetric efficiency of 100%. Calculate the mass flow rate of fuel into engine and brake specific fuel consumption.
solve it
Khswer: 0.52 0.A naturally-aspirated dual-fuel engine is running on methane and pilot diesel. The or diesel supplied per cycle is 2 mg when the engine is running at 3000 rpm. What m rate is needed to maintain an overall φ value of 0.8 if the swept volume of the eng and volumetric efficiency is 85%? Consider air's molecular mass as 2897, and kg/m3 ine is 1000cc, density as 12 Answer: 6684nt
Khswer: 0.52 0.A naturally-aspirated dual-fuel engine is...
1. (30P) A twenty-cylinder MTU 4 STROKE 20V 4000 M93 marine diesel engine is designed to develop 3490 kW brake power at 1800 rpm. The bore is 170mm and stroke length is 210 mm for each cylinder and bsfc is 205 g/kWh. The calorific value of the petrol is 42 800kJ/kg. The inlet air manifold conditions are 80 kPa and 313 K. and The engine has a volumetric efficiency of 0.82. Calculate: a) Displacement (litre) b) Bmep (kPa) c) Fuel...
A 4-stroke 3 litre V6 spark ignition petrol engine has a maximum power output of 100kW at 5500rev/min, and a maximum torque of 236Nm at 3000rev/min. The minimum sfc is 0.090 kg/MJ at 3000 rpm, and the air flow rate is 0.068m²/s. The compression ratio is 8.9:1 and the mechanical efficiency is 90%. The engine was tested under ambient conditions of 20°C and 1 bar. Take the calorific value of fuel to be 44MJ/kg. (a) Determine the power output at...
Problem (3) (10 marks) An experiment was made on a diesel engine, works on four stroke. The result follows: Friction powe sed 15 kg/hr. Calorifie value of the fuel-42000 KJ/kg. Air consumption 4.75 kg/min. s is as r 10 KW, Engine speed 1750 rpm, Brake torque 327.4 J, Fuel Mass flow of cooling water-16 kg/min. Outlet temperature of the cooling water is 65.8 oC. Temperature of the exhaust gases 400°C Room temperature is 20.8℃ C,for water 4.19 KJ/kg k. C,for...
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