A six-cylinder two-stroke engine with a compression ratio = 9 produces a torque of 1100 Nm at a speed of 2100 rpm. It has a bore bof 123 mm and a stroke s of 127 mm. (a) What is the displacement volume and the clearance volume of a cylinder? (b) What is the engine bmep, brake power, and mean piston speed?

A six-cylinder two-stroke engine with a compression ratio = 9 produces a torque of 1100 Nm at a speed of 2100 rpm. It has a bore bof 123 mm and a stroke s of 127 mm. (a) What is the displacement volume and the clearance volume of a cylinder? (b) What is the engine bmep, brake power, and mean piston speed?

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

A four-cylinder engine has a 85 mm bore ? and 90 mm stroke ?, and operates at 5000 rpm.What is the power lost to piston skirt friction?
Q108 The fallowing data refers to a test ona single cylinder four stroke oil engine Cylinder bore 220mm; stroke 360mm; area of indicator diagram 360mm length af diagram 40mm; indicator Spring rating =1.25 mm/bar; Speed 300 rev/min brake load 441-3N at o.9m radius; fuel consumption 3.8 Kg/hr} Calorific Value of fuel 43124 kj/kg ; Cooling water flow 3.8kg/hrjrise intemperature of coaling water 48K;and specific heat capacity of water 4.1868 Kj|Kg.K 340d.13biliN Calculate: @ the mechanical efficiency the indicated thermal efficiencyui a The heat balance sheet expressed as ki/min andas percentage of the heat supplied to the engine.
A 3-liter 6-cylinders square engine (bore = stroke) with two intake valves and one exhaust valve per cylinder is designed to have an output power of 300 kW and a corresponding bmep of 18.5 bar. The intake temperature is 55°C. Assume an average flow coefficient at the intake valve of 0.35. a) Calculate the intake valve area and the diameter of intake valves for a good volumetric efficiency (Mach index Z of 0.6) b) Calculate the exhaust valve area if the exhaust gases temperature is 600°C, the average flow coefficient at the exhaust valve is 0.6. c) The exhaust valve opens when the piston is at the bottom dead center. For a lift I = 1.35 cm of the exhaust valve, calculate the flow rate through the exhaust valve. The average flow coefficient at the exhaust valve is 0.6 and the cylinder pressure and temperature are 500 kPa and 600°C. Assume exhaust system pressure is 105 kPa. Notes: The specific heat ratio and gas constant for the gases at the inlet and exhaust valves are respectively 1 =…
(b) An air motor operates with a cylinder bore of 65 mm and maximum stroke of 115 mm. The supply pressure is 6.5 bar at 28°C with the exhaust pressure is maintained at atmospheric pressure. The air motor clearance volume is 5% of the swept volume and the cut-off ratio is 0.5. The induced air is compressed by the returning piston after it has travelled 95% through its stroke. Given that pV=constant, calculate; (i) the resulting temperature (K) at the end of expansion; (ii) the indicated power (kW) of the motor at 400 rpm; and (iii) the mass flowrate (kg/min) of air supplied by the air motor.
A power generator with two-cylinder, four-stroke gas engine has a bore of480 mm and a stroke of 585 mm. At 300 rev/min the torque developed is10 kNm. The generator is supplied with a mixture of gas and air in theproportion of 1 to 8 by volume. The estimated volumetric efficiency is 80% and the net calorific values of the fuel is 48.6 MJ/m3. Calculate: 1. the swept volume in m3/min, 2. the volume of mixture induced in m3/min 3. the gas flow to engine m3/min4. the energy supplied by gas5. the brake thermal efficiency
A certain six-cylinder engine has a 130.2 mm bore, a 127 mm stroke, and a clearance volume of 0.119 L in each cylinder. Does the engine run on diesel or gasoline fuel? Explain your answer
The shaft rotational speed of a 3.0Li Gasoline engine operating on a 4 stroke cycle is 3000rpm. Determine the engine's volume displacement.
A petrol engine is having, stroke length of 200 mm and clerance length (clerance gap) of 20 mm. Then the compression ratio of such engine will be a. 12 b. 11 c. 0.01 d. 10
A six-cylinder two-stroke automotive engine has been designed to provide a maximum brake torque of (3.30x10^2) Nm at rated engine speed of (5.000x10^3) rpm. The engine specifications are listed below: Bore and stroke (mm): (8.4000x10^1) x (9.2000x10^1) Compression ratio: 11.0: 1 Find its brake mean effective pressure (bmep). The answer should be in kPa with three significant figures. Note: Your answer is assumed to be reduced to the highest power possible. Your Answer: x10 Answer
During a test on a five-cylinder four-stroke IC diesel engine with a cylinder bore and stroke length of 260 mm and 305 mm respectively, running at 503 r/min, the following results were obtained: Mass on Dynamometer mass hanger (arm length = 0.825 m) 221.9 kg Indicated mean effective pressure 400 kPa Fuel consumption (with Qnet,v = 39.8 MJ/kg, density = 0.944 kg/l) 6 ml/s Take acceleration due to gravity as 9.81 m per square seconds Calculate the brake power .
A four cylinder diesel engine works on lower stroke has cylinder bore of 90 mm and the stroke of 150mm. The crank speed of 370 rpm fuel consumed by the engine 15 kg/hr and its calorific value 39000 kJ/kg the indicated mean effective pressure is 5 bar of compression ratio of an engine is 14 and cut off ratio is 2.3. Calculate relative efficiency of an engine if y=1.4
A four-stroke, 12-cylinder diesel engine has a bore and stroke of 820 mm and 2020 mm, respectively, per cylinder. The brake mean effective pressure of each cylinder is 1.2 MPa and the engine rotates at 145 rpm. The brake thermal efficiency of the engine is 32%, the mechanical efficiency is 72% and the net calorific value of the diesel is 40.75 MJ/kg. 1. calculate the specific fuel consumption (kg/kWh) ? Answer to 3 decimal places. 2. calculate thefuel consumption (kg/h) ? Answer to 0 decimal place.