16.39 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 5.4kg/h; rise in jacket water temperature 36 °C; jacket water flow 440kg/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 cm; stroke 25 cm; brake diameter 1.2 m; calorificvalue of fuel is 43 MJ/kg; proportion of hydrogen by mass in the fuel15%; 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 ofsuper heated steam to be 3180 kJ/kg. Determine,(i) the indicated thermal efficiency(ii) the specific fuel consumption in g/kW h(iii) volumetric efficiency based on atmospheric conditionsDraw up a heat balance for the test on the percentage basis indicatingthe content of each item in the balance.

Answered: Image /qna-images/answer/849136f7-c086-41b4-9950-dbe209cebc00.jpg

Answered: 16.39 A full load test on a two-stroke…

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=
Q1. During a test on a two stroke diesel engine on full load the following observations were recorded: Speed= 350 rpm Net brake load= 590 N Mean effective pressure= 2.8 bar Fuel consumption=4.3 kg/h Jacket cooling water= 500 kg/h Temperature of jacket water at inlet and outlet= 25°C and 509C respectively Air used per kg of fuel= 33kg Temperature of air in test room= 25°C Temperature of exhaust gases= 400°C Cylinder diameter= 220 mm Stroke length= 280 mm Effective brake diameter= 1 m Calorific value= 43900 KI/kg Proportion of hydrogen in fuel= 15% Mean specific heat of dry exhaust gases= 1.0 KI/kg K Specific heat of steam= 2.09 KJ/kg K Calculate: (1) indicated power (2) brake power (3) draw up heat balance sheet on minute basis.
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.
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.
A four-stroke, four-cylinder diesel engine running at 2000 rpm develops 60 kW. Brake thermal efficiency is 30% and calorific value of fuel (CV) is 42MJ / k_{g} . Engine has a bore of 120 mm and stroke of 100 mm. Take p_{a} = 1.15 kg / (m ^ 3) air-fuel ratio- 15:1 and eta_{m} = .8 Calculate (i) furl consumption kg/s) : (ii) air consumption (m^ 3/s );(ii) indicated thermal efficiency; (iv) volumetric efficiency: (v) brake mean effective pressure and (vi) mean piston speed.
ENGINE SPECIFICATIONS: 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 :- (i) Fuel consumption. (ii) Inclined manometer readings for air flow. (iii) RPM, power output etc. (iv) Study of various components of diesel engine.
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.
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.
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.
this problem is related to ic engine .please the numerical problem
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)
The following data were taken during a one-hour trial run on a single cylinder, single acting, four-stroke diesel engine of cylinder diameter of 175 mm and stroke 225 mm , the speed being constant at 1000 rpm : Indicated mep: 5.5 barsDiam. of rope brake: 1066 mmLoad on brake: 400 NReading of balance: 27 NFuel consumed: 5.7 kgCalorific value: 44.2 MJ/kg Calculate the indicated power, brake power, specific fuel consumption per indicated kWh and per brake kWh , mechanical efficiency, indicated thermal and brake thermal efficiency.

SEE MORE QUESTIONS

Recommended textbooks for you

Elements Of Electromagnetics

Mechanical Engineering

ISBN:

9780190698614

Author:

Sadiku, Matthew N. O.

Publisher:

Oxford University Press

Mechanics of Materials (10th Edition)

Mechanical Engineering

ISBN:

9780134319650

Author:

Russell C. Hibbeler

Publisher:

PEARSON

Thermodynamics: An Engineering Approach

Mechanical Engineering

ISBN:

9781259822674

Author:

Yunus A. Cengel Dr., Michael A. Boles

Publisher:

McGraw-Hill Education

Elements Of Electromagnetics

Mechanical Engineering

ISBN:

9780190698614

Author:

Sadiku, Matthew N. O.

Publisher:

Oxford University Press

Mechanics of Materials (10th Edition)

Mechanical Engineering

ISBN:

9780134319650

Author:

Russell C. Hibbeler

Publisher:

PEARSON

Thermodynamics: An Engineering Approach

Mechanical Engineering

ISBN:

9781259822674

Author:

Yunus A. Cengel Dr., Michael A. Boles

Publisher:

McGraw-Hill Education

Control Systems Engineering

Mechanical Engineering

ISBN:

9781118170519

Author:

Norman S. Nise

Publisher:

WILEY

Mechanics of Materials (MindTap Course List)

Mechanical Engineering

ISBN:

9781337093347

Author:

Barry J. Goodno, James M. Gere

Publisher:

Cengage Learning

Engineering Mechanics: Statics

Mechanical Engineering

ISBN:

9781118807330

Author:

James L. Meriam, L. G. Kraige, J. N. Bolton

Publisher:

WILEY

SEE MORE TEXTBOOKS