Please solve the question quickly النموذج الثانيRFinal Examination (2021-2022), 1st attempt.Q1: A construction vehicle has a diesel engine with eight cylinders of 130mm boreand 192min stroke, operating on four stroke cycle. It delivers 105 kW brakepower at 1000rpm, with mechanical efficiency of 0.72,calculate:B-P1-total engine displacement. 2-brake mean effective pressure. 3-engine torque.4-indicated power. 5-friction mean effective pressure.

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Answered: Q1: A construction vehicle has a diesel…

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

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Engine Type Four cylinder Four stroke MPFI petrol engine(Maruti Zen), Bore: 0.072 m, Stroke: 0.061m Capacity: 993 cc, Power: 60 HP at 6000 rpm, Torque: 78.5 Nm at 4500 rpm and Compression Ratio :9.4:1. Explain how to calculate :- (1) Mechanical Efficiency (2) Brake Thermal Efficiency (3) Indicated Specific Fuel Consumption
03/ A 4 cylinder has a following data Bore-15 cm; Piston speed 510 m/min; B.P= 60 kW; T0.80; Pa-5 bar; C.V=40000KJ/kg. Calculate i) whether this is 2 Stroke or 4 Stroke engine and why? 04/ Write a notes on heat balance sheet, draw that on the energy flow and enhance your answers with equations.
1- A four-cylinder, two stroke cycle diesel engine with (10.9 cm) bore and (12.6 cm) stroke produces (88 kW) of brake power at (2000 RPM). Compression ratio is (18:1). Determine: (a) Engine displacement. Ans.: (4700.6 cm³). (b) Brake mean effective pressure. Ans.: (561.7 kPa).
03/ A 4 cylinder has a following data Bore=15 cm; Piston speed 510 m/min; B.P= 60 kW; sch=0.80; P=5 bar; C.V-40000KJ/kg. Calculate i) whether this is 2 Stroke engine and why? or 4 Stroke
Engine Type: Single cylinder Four stroke Diesel engine, Bore: 0.0875m, Stroke: 0.11m Capacity: 661.5 cc, Power: 6 H.P. at 1500 rpm, Torque: 2.96 kg.m at 1500 rpm and Compression Ratio :17.5:1 Explain how to measure the :- Fuel consumption. Inclined manometer readings for air flow. RPM, power output etc. (iv) Study of various components of diesel engine. (ii)
A four stroke eight cylinders square gasoline engine operating at 3000 rpm has a bore equal to 86 mm. If the mechanical efficiency is 82%, the indicated mean effective pressure is 1500 kPa, the brake specific fuel consumption is 0.1889 g/kW.s, the volumetric efficiency is 83%, the intake temperature is 27°C, the intake pressure is 1 bar and the gas constant for air is 287 J/kg.K, the air to fuel ratio is: Select one: O a. 2.89 Ob. 12.2 О с. 3.15 O d. 9.15
1. A four stroke diesel engine gave the following test results at a speed of 450 RPM. Mean effective pressure - 850 kPa Cylinder bore - 22 cm. Stroke - 26 cm. Specific fuel consumption - 0.32 kg/BHP.hr Calorific value of fuel – 45000 kJ/kg. Mechanical Efficiency = 88% Determine the (a) BHP, (b) IHP, (c) Indicated themal efficiency, and (d) Brake thermal efficiency.
Q3) The following reading was taken from the performance test of single cylinder four-stroke engine with 250 mm bore and 400 mm stroke: indicated mep 7.5 bar, engine speed 250 rpm, net load on the brake 1080 N, effective diameter of the brake 1.5 m, fuel used per hour 10 kg, calorific value of the fuel 44300 kK/kg. calculate : (1) Indicated power (2) Brake power (3) Mechanical efficiency (4) Indicated thermal efficiency State any necessary assumptions for your analysis. 1)
Engine Type Four cylinder Four stroke Diesel engine, Bore: 0.073m, Stroke: 0.0889m Capacity : 1489cc, Power 36 H.P. at 4000 rpm, Torque: 8.5 kg.m at 2250 rpm and Compression Ratio :17.3:1 Explain how to measure the :- (i) Fuel consumption. Manometer readings for air flow. (iii) RPM, power output etc. (iv) Study of various components of diesel engine.
Question Design a 4 cylinder inline, turbo diesel engine to produce 103 kW of brake power at design speed when installed in a Multi-Purpose Vehicle (MPV). The square engine operates on a four stroke cycle and produces 20 bar of maximum brake mean effective pressure (bmep). Average piston speed is 11.5 m/s and bmep at peak power is 14.4 bar. If the decided values of torque position and torque increase are 50% and 28% respectively, determine the: a) bore b) stroke c) displacement d) maximum torque e) engine speed at peak torque as well as f) engine speed at peak power
Engine Type Four cylinder Four stroke Diesel engine, Bore: 0.073m, Stroke: 0.0889m Capacity: 1489cc, Power: 36 H.P. at 4000 rpm, Torque : 8.5 kg.m at 2250 rpm and Compression Ratio :17.3:1 Explain how to measure the :- (i) Fuel consumption. (ii) (iii) RPM, power output etc. (iv) Study of various components of diesel engine. Manometer readings for air flow.
(7) A single-cylinder, four-stroke cycle CI engine with 12.9 cm bore and 18 cm stroke operating at 800 r.p.m. uses 0.113 kg of fuel in four minutes while developing a torque of 76 N.m. calculate :- (a) Brake specific consumption.hr (b) Brake mean effective pressure. (kpa) (c) Brake power. (kW) (d) specific power. kW (e) Output per displacement. (kW) L (f) Specific volume. L kW

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