A full load test on a two-stroke engine yielded the following results:speed 440 rpm; brake load 50 kg; imep 3 bar; fuel consumpt ion 5.4kg /h; rise in jacket water temperat ure 36 °C; jacket water flow 440kg /h; air-fuel ratio by mass 30; temper ature of exhaust gaa 350 °C;temperature of the test room 17 °C; baromet ric pressure 76 cm of Hgcylinder diameter 22 cm; stroke 25 cm; brake diameter 1.2 m; calorificvalue of fuel is 43 M.J /kg; propor tion of hydrogen by maas in the fuel15%; R1 kJ /kg K; specific heat of dry steam 2 k.J/kg K. Assume enthalpy ofsuper heated steam to be 3180 kl/kg. Determine,0.287 k.J/kg of mean specific heat of dry exhaust gases =%3D(i) the indicated ther mal efficiency(ii) the specific fuel consumption in g/kW h(iii) volumetric efficiency based on atmoepher ic condit ionsDraw up a heat balance for the test on the percentage basis indicat ingthe content of each item in the balance.

(i) To find: The indicated thermal efficiency. Given: The speed is N=440 rpm. The break load is m=50…

A full load test on a two-stroke engine yielded the following results: speed 440 rpm; brake load 50 kg; imep 3 bar; fuel consumption 5.4 kg/h; rise in jacket water temperature 36 °C; jacket water flow 440 kg/h; air-fuel ratio by mass 30; temperature of exhaust gas 350 °C; temperature of the test room 17 °C; barometric pressure 76 cm of Hg cylinder diameter 22 an; stroke 25 cm; brake diameter 1.2 m; calorific value of fuel is 43 MJ/kg: proportion of hydrogen by mass in the fuel 15%; R 0.287 kJ/kg of mean specific heat of dry exhaust gases = 1 kJ/kg K; specific heat of dry steam 2 kJ/kg K. Assume enthalpy of super heated steam to be 3180 kJ/kg. Determine, (i) the indicated thermal efficiency (ii) the specific fuel consumption in g/kWh (iii) volumetric efficiency based on atmospheric conditions Draw up a heat balance for the test on the percentage basis indicating the content of each item in the balance.

A full load test on a two-stroke engine yielded the following results: speed 440 rpm; brake load 50 kg; imep 3 bar; fuel consumption 5.4 kg/h; rise in jacket water temperature 36 °C; jacket water flow 440 kg/h; air-fuel ratio by mass 30; temperature of exhaust gas 350 °C; temperature of the test room 17 °C; barometric pressure 76 cm of Hg cylinder diameter 22 an; stroke 25 cm; brake diameter 1.2 m; calorific value of fuel is 43 MJ/kg: proportion of hydrogen by mass in the fuel 15%; R 0.287 kJ/kg of mean specific heat of dry exhaust gases = 1 kJ/kg K; specific heat of dry steam 2 kJ/kg K. Assume enthalpy of super heated steam to be 3180 kJ/kg. Determine, (i) the indicated thermal efficiency (ii) the specific fuel consumption in g/kWh (iii) volumetric efficiency based on atmospheric conditions Draw up a heat balance for the test on the percentage basis indicating the content of each item in the balance.

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

The following data were obtained during a test of six cylinder otto cycle engine. Speed 2000 rpm, bore 3.5 in stroke 3.75 in, specific fuel consumption base on brake hp.66 lbs. / bhp-hr, brake arm 1.05 ft. HHV of fuel 20000 Btu/lb, Brake Torque 133 ft-lb, friction torque 40 ft-lb room temperature 90 F. barometric pressure 14.7 psia Find:a.) BHP=b.) BMEP=c.) IMEP=d.) IHP=e.) BRAKE THERMAL EFFICIENCY=f.) INDICATED THERMAL EFFICIENCY=
9 A full load test on a two-stroke engine yielded the following results: speed 440 rpm; brake load 50 kg; imep 3 bar; fuel consumption 5.4 kg/h; rise in jacket water temperature 36 °C; jacket water flow 440 kg/h; air-fuel ratio by mass 30; temperature of exhaust gas 350 °C; temperature of the test room 17 °C; baromet ric pressure 76 cm of Hg: cylinder diameter 22 cm; stroke 25 cm: brake diameter 1.2 m; calorific value of fuel is 43 M.J/kg; proportion of hydrogen by mass in the fuel 15%: R 0.287 k.J/kg of mean specific heat of dry exhaust gases 1 kJ /kg K; specific heat of dry steam 2 kJ/kg K. Assume enthalpy of super heated steam to be 3180 k.J/kg. Determine. (i) the indicated thermal efficiency (ii) the specific fuel consumption in g/kW h (iii) volumetric efficiency based on atmospheric conditions Draw up a heat balance for the test on the percentage basis indicating the balance. the content of cach item
Q9: In a test on a two- stroke, heavy oil, marine engine, the following observations were made, Oil consumption, 4.05 kg; Calorific value of oil, 43000 kj/kg; het brake load 579N; Mean brake diameter, 1 m; mean effective pressure 275 kN/ m2; Cylinder diameter 0.20m; stroke, 0.250m; speed, 360 rpm. Icalculate o @ the mechanical efficiency the indicated thermal efficiency O Ihe brake thermal efficiency and The quantity of jacket water required per minute if 30% of the energy supplied by the fuel is absorbed by this waterPermissible rise in temperature is 20k and specific heat capacity of water=4.1868
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?
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.
(B) The following observations were recorded during a trial on à 4-slroke diesel Power absorbed by non-firing engine when driven by an electric motor 10 kW, speed of the engine 1750 rpm, brake torque = 327.4 Nm, fuel used = 15 kg/hr, calorific value of fuel 42000 kJ/kg, air supplied temperature of cooling water 65.8°C, temperature of exhaust gas = 400°C, room temperature 20.8°C, specific heat of water = 4.19 kJ/kg K, and specific heat of exhaust gas kJ/kg K. Determine : a) B.P, b) Mechanical efficiency, c) BSFC, and d) Draw up heat balance sheet on kW basis. ="4.75 kg/min, cooling water circulated =16 kg/min, outlet 1.25
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.
During testing of single cylinder two-stroke petrol engine following data were obtained. Brake torque = 640 Nm, cylinder diameter 21 cm, speed 350 rpm, stroke length = 28 cm, mean effective pressure = 5.6 bar, oil consumption = 8.16 kg/h, calorific value of the fuel = 42,705 kj/kg. Determine: Srake thermal efficiency
A test on a single cylinder, four stroke oil engine having a bore of 15cm and stroke 30 cm gave the following results: speed 300 rpm, brake torque 200 Nm, indicated mean effective pressure 7 bar, fuel consumption 2.4 kg/h, air fuel ratio 22, room temperature 20°C and pressure at 1 bar. The fuel has a calorific value of 42 MJ/kg and contains of 15% by weight of hydrogen. Calculate: i. indicated thermal efficiency ii. volumetric efficiency
COMBUSTION ENGINEERING In an air-standard Otto cycle engine, the following data were obtained: k = 1.4 , C, = 1.0045 ,C, = 0.7175 , P1 = 103 kPa , t, = 26°C, t2 = 414°C, tz = 2527°C, kgK kg-K t4 = 945.8°C. To be done: a. Find the compression ratio r. A. 6,5 В. 7 C. 7.5 D. 8.0 E. None of these b. Find the pressure at the end of the compression stroke p2. А. 1804 КРа В. 1894 КРа С. 1994 КPа D. 2004 КРа c. Find the pressure at the end of heat addition. A. 7700 kPa B. 7719 kPa C. 8019 kPa D. 8800 kPa E. None of these d. Find the pressure at the end of the expansion stroke P4. A. 410 kPa В. 420 kPa C. 8019 kPa D. 460 kPa E. None of these e. Find the Heat added qa to the cycle, in kJ/kg air. A. 1615 kJ/kg C. 1555 kJ/kg E. None of these B. 1575 kJ/kg D. 1516 kJ/kg f. Find the work of the cycle wey, in kJ/kg air. A. 866.1- kg air B. 877.1 k) kg air C. 880.2- D. 900- E. None of these kg air E. None of these kg air Page 1 of 2 g. Calculate the cycle efficiency for the cycle, in percent. A. Ncy =…
ENGINE SPECIFICATIONS: 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) Manometer readings for air flow. RPM, power output etc. Study of various components of diesel engine.
03 A 4 cylinder has a following data Bore=15 cm; Piston speed =510 m/min; B.P= 60 kW; Nnech=0.80; P=5 bar: C.V=40000KJ/kg. Calculate i) whether engine and why? this is 2 Stroke or 4 Stroke