Engineering, 16.01.2020 05:31 actived
Agasoline truck engine takes in 10,000 j of heat and delivers 2000 j of mechanical work per cycle. the heat is obtained by burning gasoline with heat of combustion
(a) what is the thermal efficiency of this engine?
(b) how much heat is discarded in each cycle?
(c) if the engine goes through 25 cycles per second, what is its power output in watts? in horsepower?
(d) how much gasoline is burned in each cycle?
(e) how much gasoline is burned per second? per hour?
Answers: 3
Engineering, 03.07.2019 14:10
Amass of 1.5 kg of air at 120 kpa and 24°c is contained in a gas-tight, frictionless piston-cylinder device. the air is now compressed to a final pressure of 720 kpa. during the process, heat is transferred from the air such that the temperature inside the cylinder remains constant. calculate the boundary work input during this process.
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Engineering, 04.07.2019 18:10
The mass flow rate of the fluid remains constant in all steady flow process. a)- true b)- false
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Engineering, 04.07.2019 18:10
Aflywheel accelerates for 5 seconds at 2 rad/s2 from a speed of 20 rpm. determine the total number of revolutions of the flywheel during the period of its acceleration. a.5.65 b.8.43 c. 723 d.6.86
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Engineering, 04.07.2019 18:10
Afour cylinder four-stroke in-line engine has a stroke of 160mm, connecting rod length of 150mm, a reciprocating mass of 3kg and its firing order is 1-3-4-2. the spacing between cylinders is 100mm. i. show that the engine is in balance with regard to the primary inertia forces and primary 3. a and secondary inertia couples. li determine the out of balance secondary inertia force ii. propose ways of balancing this out of balance force and discuss the challenges that will arise
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Agasoline truck engine takes in 10,000 j of heat and delivers 2000 j of mechanical work per cycle. t...
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