Q2/ A six-cylinder, gasoline engine operates on the four-stroke cycle. The böre of each cylinder is 80 mm and the stroke is 100 mm. The clearance volume per cylinder is 70 cc. At the speed of 4100 rpm, the fuel consumption is 5.5 gm/sec (or 19.8 kg/hr.) and the torque developed is 160 Nm. Calculate: (1) Brake power, (ii) The brake mean effective pressure, (iii) Brake thermal efficiency if the calorific

Q2/ A six-cylinder, gasoline engine operates on the four-stroke cycle. The böre of each cylinder is 80 mm and the stroke is 100 mm. The clearance volume per cylinder is 70 cc. At the speed of 4100 rpm, the fuel consumption is 5.5 gm/sec (or 19.8 kg/hr.) and the torque developed is 160 Nm. Calculate: (1) Brake power, (ii) The brake mean effective pressure, (iii) Brake thermal efficiency if the calorific

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

An I.C. engine with brake power output an AF ratio of 15 to 1 uses a fuel with a heating value of 20,000 Btu/lb. fuel. The unit produces a continuous brake power output of 500 bhp while consuming 90 lb. of fuel during a 30-minute period of operation. From the engine performance, the indicated thermal efficiency is found to be 39 percent. Calculate (a) the mechanical efficiency, %; (b) the required air flow, lb. air/min; and (c) the brake specific fuel consumption, lb. fuel/bhp-hr.
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?
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
A fan is listed having the following performance with standard air:Volume discharge : 120m3/sSpeed : 7.0rpsStatic Pressure : 310mm water gageBP Required : 620kWThe system duct will remain the same and the fan will discharge the same volume of 120m3/s of air at 93oC and a barometric pressure of 735mm of Hg, when its speed is 7.0rps. Find the brake power input of the fan and the static pressure required. Provide solutions and schematic diagram.
Explain the mechanical efficiency of two and four stroke engines note:Use whatever laws or graphics you need to illustrate the answer
write an article for one stroke engine:
18 The power output of a six cylinder four-stroke engine is absorbed by a water brake for which the law is WN/20000 where the brake load, W is in Newton and the speed, N is in rpm. The air consumption is measured by an air box with sharp edged orifice system. The following readings are obtained. Orifice diameter 30 mm Bore 100 mm Stroke 120 mm Brake load 560 N %3D C/H ratio by mass Coefficient of discharge Ambient pressure Pressure drop across orifice Time taken for 100 cc of fuel consumption Ambient temperature Fuel density 83/17 0.6 %3D 1 bar 14.5 cm of Hg 20 s 27 °C 831 kg/m³ Calculate (i) the brake power (ii) the torque (iii) the brake specific fuel consumption (iv) the percentage of excess air and (v) the volumetric efficiency
Show Complete Solution
A 1500cm³, four-stroke, four cylinder CI engine operating at 3000rpm produces 48kW of brake power. Volumetric efficiency is 0.92 and air-fuel ratio AF=21:1 Calculate: (Show your solution) a. Rate of air flow into the engine (kg/sec) b. Break specific fuel consumption (gm/kW-hr) c. Break output per displacement (kW/I)
You are asked to design a four cylinder four-stroke compression ignition engine for light trucks, which is required to provide a maximum brake torque of (2.000x10^2) Nm at the rated speed of (4.50x10^3) rpm. The bore (B)/stroke (L) ratio is required to be (9.0000x10^-1). Given that the bmep of the engine is assumed to be (1.0000x10^3) KPa, find its stroke (L). The answer should be in the unit of meter with 3 significant figures.
A four-stroke SI engine 0.08 m bore (d), 0.10 m stroke (L), is tested at full throttle at constant speed. The fuel supply is fixed at 0.0011333 kg/s and the spark plugs of the four cylinders are successively short circuited without change of speed, brake torque being correspondingly adjusted. The brake power (bp) measurements are the following:With all cylinders firing = 12.5 kWWith cylinder No. 1 cut off = 9 kWWith cylinder No. 2 cut off = 9.15 kWWith cylinder No. 3 cut off = 9.2 kWWith cylinder No. 2 cut off = 9.1 kWThe lower calorific (or heating value, LCVf) of the fuel is 44100 kJ/kg. The clearancevolume (Vcl) of one cylinder 70.0 x 103 mm3. Determine:(a) Indicated power (ip) of the engine under these conditions.(b) The indicated thermal efficiency (c) The relative efficiency of this engine. (d) Draw schametic diagram
A four-stroke automotive engine has been designed to provide a maximum brake torque of (1.900x10^2) Nm at rated engine speed of (5.200x10^3) rpm. The engine specifications are listed below: Bore and stroke (mm): (7.5000x10^1) x (8.10x10^1) Compression ratio: 11.0: 1 Estimate the maximum brake power the engine will deliver. The answer should be in kW with three significant figures. Note: Your answer is assumed to be reduced to the highest power possible. Your Answer: x10 Answer