Q2: A two-stroke diesel engine was electrically motored (non-firing operation) when the mete reading was 1.5 kW. Then the test on the engine was carried out for firing operation and th following observations were recorded: brake torque = 120 N.m; speed = 600 rpm. (i) Determin the brake power (b.p), the indicated power (ip), and mechanical efficiency (nm). (ii) Draw u the heat balance sheet on percentage basis, if the fuel used = 2.5 kg/hr; calorific value of fuel 40.3 MJ/kg; cooling water used = 818 kg/hr; rise in temperature of cooling water 10°C exhaust gas temperature = 345°C; room temperature 25°C; AFR = 32:1. Tak (n=42 kl/kg K and Cn = 1.05 kl/kg K Assume n = = - 98%

Q2: A two-stroke diesel engine was electrically motored (non-firing operation) when the mete reading was 1.5 kW. Then the test on the engine was carried out for firing operation and th following observations were recorded: brake torque = 120 N.m; speed = 600 rpm. (i) Determin the brake power (b.p), the indicated power (ip), and mechanical efficiency (nm). (ii) Draw u the heat balance sheet on percentage basis, if the fuel used = 2.5 kg/hr; calorific value of fuel 40.3 MJ/kg; cooling water used = 818 kg/hr; rise in temperature of cooling water 10°C exhaust gas temperature = 345°C; room temperature 25°C; AFR = 32:1. Tak (n=42 kl/kg K and Cn = 1.05 kl/kg K Assume n = = - 98%

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

Total resistance, percent of vehicle weight 40 30 25 Rated GVW Rated NVW. First Second Performance Chart Engine: GM 6-71 N at 239 hp Transmission: Fuller 5GT-1220 Axle ratio: 16.07:1 Tire size: 16.00-25 Third- Fourth- Ro.Ra. 28.6 in. Fifth 300 200 150 100 80 60 50 40 30 20 0 5 10 15 20 25 30 35 40 45 50 Vehicle weight, lb (x1000) mph FIGURE 10.8 Performance chart for a 22-ton rear-dump truck 150 100 90 80 70 60 50 40 30 25 20 15 = 99876 5 4 3 2.5 2 1.5 Rimpull, lb (x1000)
A 4 stroke four cylinder engine is tested while running at 4000 rpm. The inlet air is at 25ºC and pressure is 750 mm of Hg. The piston displacement for each cylinder is 299cc. The A/F ratio is 15:1 and BSFC is 325 g/kWh. The dynamometer reading shows a power out of 80 hp. Assume the calorific value of the fuel as 43 MJ/kg. Find i) Volumetric Efficiency ii) Brake Thermal Efficiency iii) Total Fuel Consumption iv) Brake Mean effective Pressure
A crawler with 1.5 m diesel engine has the following information: Cost of equipment Shipping cost Unkoading &assembling at destination Engine Crankcase capacity 1lours between oil changes Operating factor Useful life, with no salvage value Hours operated per year Weight Cost of fuel per liter Cost of oil per liter Maintenance $82260 $2448 $220 160 hp 22.71 liter 100 hr 06 6 vears 2000 61700 kg 0.33 $/liter 0.53 S/liter 100% of Depreciation 12% of Average Valuc Investment 1- what is the initial capital cost of the crawler?
An engine undergoes the brake power testing in an brake rope dynamometer running at 8000 rpm and experience a torque of 500 N-m, how much brake power generated by the engine?
Please solve the question quickly
QUESTION 3 In an axial clutch, the clutch plate has an outer diameter of 15.0 inches and an inner diameter of 5.0 inches. Assume a coefficient of friction of 0.22. Applying the uniform wear assumption, what is the magnitude of the axial force (in lbf) to obtain a cluiching torque of 2000 in-lb? OA. 1.6x103 OB. 1.7×103 OC 1.8×103 OD.2.1×103 OE. None of the above
Please write the complete step-by-step solution in a clear manner. Thank you!
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
1. 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?
QUESTION 4 A single-cylinder, 4-stroke, 3-liter gasoline engine operates at 800 rpm and a compression ratio of 9. The pressure and temperature at the intake are 103 kPa and 30 °C respectively. The fuel used has a heating value of 42,500 kJ/kg, the air-fuel ratio is 14, and 82 % mechanical efficiency. The length of the indicator card is 60mm with an area of 520 mm² and the spring scale is 0.85 bar/mm, considering a volumetric efficiency of 95%, 25% excess air, and k = 1.37. Determine the Brake Engine Efficiency in (%). Note: Use four (4) decimal places.
NOTE: Do not solve the whole numerical.I only want the simplified schematic diagram of the plant showing all the necessary data displayed on it.
An engine of 175 mm bore and 375 mm stroke is governed by hit and miss type governor to 220 rpm. With a fixed setting of the gas supply and ignition advance, indicator diagrams gave the following values of mean effective pressure. Firing, positive loop 5.7 bar, negative loop 0.25 bar; missing negative loop 0.42 bar. When developing 6 kW the explosions were 100 per minute and the gas used was 0.1 m per minute. Calculate the friction power and assuming uniform gas supply per explosion, find the gas consumption per minute at no load.