The levels of combustible species in the exhaust of a direct-injection diesel engine are: HC, 0.8...

The levels of combustible species in the exhaust of a direct-injection diesel engine are: HC, 0.8
g/kW.h; CO, 3 g/kW.h; particulates, 0.7 g/kW.h. If the specific fuel consumption is 210
g/kW. h calculates the combustion efficiency

Expert Solution

plz upvote my ans

samet mamat answered 1 year ago

The two basic systems can be used for the injection into diesel engine?

Why does diesel engine initiate 2 stage fuel injection? What is the reason for that?

Describe the differences in valve timing on a naturally aspirated diesel engine, a turbocharged diesel engine,...

Describe the differences in valve timing on a naturally aspirated diesel engine, a turbocharged diesel engine, and a high-performance petrol engine.

Describe how the diesel engine works

An oil cooler for a large diesel engine is to cool engine oil from 60 to...

An oil cooler for a large diesel engine is to cool engine oil from 60 to 45 °C, using seawater at an inlet temperature of 20 °C with a temperature rise of 15 °C. The design heat load is 140 kW, and the mean overall heat transfer coefficient based on the outer surface area of the tubes us 70 W/m2°C. Calculate the heat transfer surface area for single pass (a)- counter flow and (b)- parallel flow arrangements.

Determine the concentrations of all species in the exhaust from the complete and perfect combustion of...

Determine the concentrations of all species in the exhaust from the complete and perfect combustion of an oil with the chemical formula C16H25S0.1. Assume 51 % excess air (79 mol% N2, 21 mol% O2) is the source of oxygen. A) Calculate the amount of oxygen in moles that must be supplied (includes excess). B) Calculate the concentration of CO2 in the exhaust gas in ppm. C) Calculate the concentration of SO2 in the exhaust gas in ppm.

A propane burning engine is being evaluated and the exhaust gas collected on a dry basis...

A propane burning engine is being evaluated and the exhaust gas collected on a dry basis is 10.1% CO2, 1.1% CO, 4.7% O2 and 84.1% N2. During the test, 0.50 kg of fuel is burned and 1.73 m3 of exhaust gas (again dry) was collected at 15°C and 108 kPa. However, after the test someone questions whether it was really propane that was burned. Using the data above, specify what hydrocarbon was burned.

(30%) Q5. Composition of gas in diesel engine after combustion engine is 5% oxygen, 20% carbon...

(30%) Q5. Composition of gas in diesel engine after combustion engine is 5% oxygen, 20% carbon dioxide, 15% water vapor, and remaining is nitrogen gas in volume. Temperature and pressure of the gas is 1800K and 6 MPa. This gas is isentropically expanded to the atmospheric pressure. Use air standard assumption. a) Calculate the required properties of gas mixture (specific heats, gas constant, etc.) b) Calculate the power generated expansion for per kg of mixture. c) What is the temperature...

A diesel engine has a compression ratio of 19. The lowest pressure of the bike is...

A diesel engine has a compression ratio of 19. The lowest pressure of the bike is 250 kPa, the lowest the temperature is 180 ºC and the heat supply is 1200 kJ / kg. (a) Draw a principle image of the engine. (1p) (b) Draw a T-s and a P-v diagram with numbered points for the cycle (1p) (c) Set up at least one table of given input for relevant points (1p) The table can also be filled in with...

A Diesel engine with a compression ratio of 16 has a cutoff ratio of 1.5. The...

A Diesel engine with a compression ratio of 16 has a cutoff ratio of 1.5. The state before polytropic compression (exponent 1.3) is 1700 cm3 , 96 kPa and 22°C and there is isentropic expansion. (a) Sketch the P-v diagram for this cycle. (b) Calculate the heat transfer in and heat transfer out. answer must be Qin = 657 J or 724 J or 866 J, Qout = 291 J or 296 J or (c) Determine the thermal efficiency. answer...

Question