Q3/ Answer the following question: A turbocharged, 4 cylinders and 2 liters engine operates with stoichiometric gasoline, 2000 rpm, and overall volumetric efficiency of 150%. The turbocharger has an isentropic efficiency of 80% for each of its parts. Exhaust enters the turbocharger at 400° C and 150 kPa. Reduction or increase of the pressure inside any part of the turbocharger is 25 kPa. Calculate the power losses of the turbocharger. Assume that the ambient conditions are 28° C and 100 kPa, C, and y for the exhaust are 1.107 kJ/kg.K and 1.35, respectively.

Q3/ Answer the following question: A turbocharged, 4 cylinders and 2 liters engine operates with stoichiometric gasoline, 2000 rpm, and overall volumetric efficiency of 150%. The turbocharger has an isentropic efficiency of 80% for each of its parts. Exhaust enters the turbocharger at 400° C and 150 kPa. Reduction or increase of the pressure inside any part of the turbocharger is 25 kPa. Calculate the power losses of the turbocharger. Assume that the ambient conditions are 28° C and 100 kPa, C, and y for the exhaust are 1.107 kJ/kg.K and 1.35, respectively.

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

See similar textbooks

Similar questions

What is the efficiency of a Diesel Engine if the heat added is 19 BTU and heat rejected is 9 BTU?
12. A 1.8-liter, 6-cylinder engine behaves as a polytropic air system with n=1.2. At the beginning the volume of air inside the cylinder is Vo=1/8 Vcylinder, the temperature and pressure are 25 °C and 77 KPa. At the end of the expansion, the temperature is 350°C and the volume is that of the cylinder. A. What is the pressure at the end of the cycle? B. If 40% of the boundary work is used to accelerate a 400 kg car. How long does it take for the car to go from 0 to 100 at 2000 RPM?
An ideal gas Diesel engine, that has an inlet temperature and pressure of 19 0C and 102 kPa respectively with a compression ratio of 23:1. The maximum cycle temperature is 1,237 0C. Take Specific heat at constant pressure and constant volume for air as 1.005 kJ/kg K and 0.717 kJ/kg K respectively. Calculate the specific heat received to one decimal place and include the correct SI unit.
Thermodynamics Instructions: Determine the following for the TURBINE. a) Work b) Thermal efficiency c) steam rate *show complete solutions and please write legibly. TY
7 . Calculate the work of a steam turbine with the following thermodynamic parameters: Enthalpy in = 1500 Btu/lbm Enthalpy out = 1053 Btu/lbm Velocity in = 125 ft/sec Velocity out = 130 ft/sec Inlet nozzle is 8 ft above the turbine Heat loss inside the turbine is 10 Btu/lbm
A cycle operates on air occurs as follows: an isentropic compression 1-2, a constant-pressure expansion 2-3, an isentropic expansion 3-4, and finally a constant volume cooling 4-1. The ratio os compression during the isentropic compression is 14, ratio expansion during constant-pressure expansion is 2. P1= 47 kPa T1 = 32 degree celsius, V1 =0.2m3. Find the heat added. a. 66.9kJ b. 94.6 kJ c. 88.2 kJ d. 75.4kJ
A Carnot engine using air receives heat at 300°C and rejects heat at 60°C. The pressure and volume at the start of the heat addition process are 5 MPaa and 0.9 L respectively, at the end of the process the pressure drops by 45%. Determine: • Work net • Heat added • Heat rejected • Thermal Efficiency
An ideal gas Diesel engine, that has an inlet temperature, pressure and compression ratio of 21 0C and 102 kPa 19:1 respectively. The maximum cycle temperature is 1,234 0C. Take Specific heat at constant pressure and constant volume for air as 1.005 kJ/kg K and 0.717 kJ/kg K respectively. Calculate the specific heat rejected during the cycle to one decimal place and include the correct SI unit.
For a fixed pressure,Compare the performance of otto engine and Diesel engine.
If the volumes at the end of compression and at the beginning of expansion in an ideal Diesel engine are 0.039 m³ and 0.041 m³ respectively. What is the cut-off ratio?
In the first stage of the impulse turbine, the adiabatic heat drop in the nozzle is 350 (kJ/kg), the velocity coefficient of the nozzle is 0.96, the nozzle exit angle is 20 degrees, the circumferential speed of the rotor is 350 m/s, the rotor The exit angle is 30 degrees. Find the next value.(1) Nozzle efficiency, (2) Draw a velocity triangle (scale), (3) Circumferential force acting on the rotor blade (4) Find the forward efficiency of the turbine.
An air standard gas turbine engine operates on an overall pressure ratio of 4 and between the temperature limits of 70 F and 1600 F. Assuming constant specific heats, evaluate the compressor work. The efficiencies of compressor and turbine are 0.82 and 0.92, respectively. (a) Assuming constant specific heats, evaluate the compressor work. (b) determine the turbine work (c) determine the thermal efficiencies. Show complete solution on a paper.