her فرع واحد : he / توك سؤال / Q1/Write a notes on heat balance sheet, draw that on the energy flow and enhance your answers with equations. 2:2 Q2/An indicator diagram taken from a single cylinder four stroke, compression ignition engine has a length of 100/mm and an area of 2045 mm². The indicator pointer deflects a distance of 10 mm for a pressure increment of 2 bar in the cylinder. If the bore and stroke of the engine cylinder are both 100 mm and the engine speed is 900 rev/min, calculate the mean effective pressure and the indicated power. If the mechanical efficiency is 0.75, what is the brake power developed. Draw the indicator diagram. lp or bie 03/A diesel engine develops 5kW. Its indicated thermal efficiency is 0.3 and mechanical efficiency 0.75. Estimate the fuel consumption of engine in (a) Kg/hr (b) liters/hr (c) indicated specific fuel consumption and (d) brake specific fuel consumption. Take heat value of fuel 42000 kJ/Kg and density of fuel 0.87 Kg/liter. n Quiz/(a) A diesel engine has brake thermal efficiency of 28 percentage. If the calorific value of fuel is 42500 kJ/kg, find its brake specific fuel consumption. (b) An internal combustion engine with 12 cm by 15 cm has six cylinder and piston speed of 480 m/min. The brake horse power and mechanical efficiency are 60, 75%. The mean effective pressure is 43.3454 N/m². Check that this engine is a four stroke or two stroke.
her فرع واحد : he / توك سؤال / Q1/Write a notes on heat balance sheet, draw that on the energy flow and enhance your answers with equations. 2:2 Q2/An indicator diagram taken from a single cylinder four stroke, compression ignition engine has a length of 100/mm and an area of 2045 mm². The indicator pointer deflects a distance of 10 mm for a pressure increment of 2 bar in the cylinder. If the bore and stroke of the engine cylinder are both 100 mm and the engine speed is 900 rev/min, calculate the mean effective pressure and the indicated power. If the mechanical efficiency is 0.75, what is the brake power developed. Draw the indicator diagram. lp or bie 03/A diesel engine develops 5kW. Its indicated thermal efficiency is 0.3 and mechanical efficiency 0.75. Estimate the fuel consumption of engine in (a) Kg/hr (b) liters/hr (c) indicated specific fuel consumption and (d) brake specific fuel consumption. Take heat value of fuel 42000 kJ/Kg and density of fuel 0.87 Kg/liter. n Quiz/(a) A diesel engine has brake thermal efficiency of 28 percentage. If the calorific value of fuel is 42500 kJ/kg, find its brake specific fuel consumption. (b) An internal combustion engine with 12 cm by 15 cm has six cylinder and piston speed of 480 m/min. The brake horse power and mechanical efficiency are 60, 75%. The mean effective pressure is 43.3454 N/m². Check that this engine is a four stroke or two stroke.
Refrigeration and Air Conditioning Technology (MindTap Course List)
8th Edition
ISBN:9781305578296
Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Chapter1: Heat, Temperature, And Pressure
Section: Chapter Questions
Problem 17RQ: Convert 22C to Fahrenheit.
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