please I need help with this thermodynamics problem 
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2. (11 marks total) A Diesel engine burns liquid Diesel fuel with a composition of 86% C, 14% H b...
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 (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...
Question 1 25 Marks A fuel consisting of carbon, hydrogen, sulphur, oxygen and non-combustible is burnt...
Question 1 25 Marks A fuel consisting of carbon, hydrogen, sulphur, oxygen and non-combustible is burnt under excess air conditions. A bomb calorimeter test gives the fuel energy content of 38.5 MJ/kg and after combustion the mass of ash is 5% of the original mass of fuel burnt. The percentage analysis of the exhaust gas yields (by basis) mass CO2 H20 N2 SO2 14.2% 15% 69.5% 0.3% O2 1% For this combustion calculation, assume 23% O2 and 77% N2 in...
2. An aircraft with a single turbojet engine (with an inlet area of 1 m2) is...
2. An aircraft with a single turbojet engine (with an inlet area of 1 m2) is flying at cruising condition with a flight Mach number of 0.7. The ambient temperature and pressure are 250 K and 100 kPa, respectively. The engine compressor pressure ratio is 12, and the turbine inlet temperature is 1200 K. Assume all mechanical components are operating at isentropic condition and the specific heat can be considered a constant (throughout the entire engine) of 1 kJ/(kg K)....
Question 3 [Total Marks- 25 Biomass, Bioenergy and Biomass Supply Chain a) Briefly describe how to use a bomb calorimet...
Question 3 [Total Marks- 25 Biomass, Bioenergy and Biomass Supply Chain a) Briefly describe how to use a bomb calorimeter to measure the higher heating value (HHV of a biomass fuel. 5 Marks] The data for proximate analysis and ultimate analysis of a woody biomass are given in Table 1. The higher heating value (HHV, MJ/kg) of the fuel can be estimated using the equation below: b) HHV-19.914-0.2324 x Ash, where Ash is the weight percentage on dry biomass basis....
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 (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...
Question 1 25 Marks A fuel consisting of carbon, hydrogen, sulphur, oxygen and non-combustible is burnt under excess air conditions. A bomb calorimeter test gives the fuel energy content of 38.5 MJ/kg and after combustion the mass of ash is 5% of the original mass of fuel burnt. The percentage analysis of the exhaust gas yields (by basis) mass CO2 H20 N2 SO2 14.2% 15% 69.5% 0.3% O2 1% For this combustion calculation, assume 23% O2 and 77% N2 in...
2. An aircraft with a single turbojet engine (with an inlet area of 1 m2) is flying at cruising condition with a flight Mach number of 0.7. The ambient temperature and pressure are 250 K and 100 kPa, respectively. The engine compressor pressure ratio is 12, and the turbine inlet temperature is 1200 K. Assume all mechanical components are operating at isentropic condition and the specific heat can be considered a constant (throughout the entire engine) of 1 kJ/(kg K)....
Question 3 [Total Marks- 25 Biomass, Bioenergy and Biomass Supply Chain a) Briefly describe how to use a bomb calorimeter to measure the higher heating value (HHV of a biomass fuel. 5 Marks] The data for proximate analysis and ultimate analysis of a woody biomass are given in Table 1. The higher heating value (HHV, MJ/kg) of the fuel can be estimated using the equation below: b) HHV-19.914-0.2324 x Ash, where Ash is the weight percentage on dry biomass basis....
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