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Anonymous

Asked: 2 months agoIn: Mechanical Engineering

Derive the efficiency of Otto cycle with the help of P-V and T-S diagram.

VishalProfessional

Asked: 2 months agoIn: Mechanical Engineering

A 2-stroke oil engine has bore of 20 cm, stroke 30 cm, speed 350 r.p.m, i.m.e.p. 275 kN/m2, net brake load 610 N, diameter of brake drum 1 m, oil consumption 4.25 kg/hr, calorific value of fuel 44 × 103 kJ/kg. The indicated thermal efficiency will be

A 2-stroke oil engine has bore of 20 cm, stroke 30 cm, speed 350 r.p.m, i.m.e.p. 275 kN/m2, net brake load 610 N, diameter of brake drum 1 m, oil consumption 4.25 kg/hr, calorific value of fuel 44 ...Read more

Mazurek GravityPundit

Asked: 2 months agoIn: Mechanical Engineering

A gasoline engine with 2-Stroke configuration produces 28 kW and its frictional power 43.6 kW. It consumes air of 0.0556 kg/s and works with 1:10 of fuel-air ratio. The heating value of the fuel is 42000 kJ/kg. Calculate the mechanical efficiency, fuel consumption, indicated thermal efficiency, brake thermal efficiency, brake specific fuel consumption and indicated specific fuel consumption.

A gasoline engine with 2-Stroke configuration produces 28 kW and its frictional power 43.6 kW. It consumes air of 0.0556 kg/s and works with 1:10 of fuel-air ratio. The heating value of the fuel is 42000 kJ/kg. Calculate ...Read more

VishalProfessional

Asked: 2 months agoIn: Mechanical Engineering

A two-stroke CI engine develops a brake power of 368 kW while its frictional power is 73.6 kW. Its fuel consumption is 180 kg/h and works with an air-fuel ratio of 20:1. The heating value of teh fuel is 42000 kJ/kg. Calculate (i) indicated power (ii) mechanical efficiency (iii) air consumption per hour (iv) indicated thermal efficiency and (v) brake thermal efficiency.

A two-stroke CI engine develops a brake power of 368 kW while its frictional power is 73.6 kW. Its fuel consumption is 180 kg/h and works with an air-fuel ratio of 20:1. The heating value of teh fuel ...Read more

VishalProfessional

Asked: 2 months agoIn: Mechanical Engineering

Explain the working of a four-stroke petrol engine with the help of a neat sketch and an indicator diagram.

Explain the working of a four-stroke petrol engine with the help of a neat sketchand an indicator diagram.

VishalProfessional

Asked: 2 months agoIn: Mechanical Engineering

A one -litre capacity, four strokes, four-cylinder SI engine has a brake thermal efficiency of 30 % and indicated power is 40 kW at full load. At half load, it has a mechanical efficiency of 65 %. Assuming constant mechanical losses, calculate (1) brake power (2) frictional power (3) mechanical efficiency at full load.

A one -litre capacity, four strokes, four-cylinder SI engine has a brake thermal efficiency of 30 % and indicated power is 40 kW at full load. At half load, it has a mechanical efficiency of 65 %. Assuming ...Read more

VishalProfessional

Asked: 2 months agoIn: Mechanical Engineering

The following details were noted in a test on a four- cylinder, four stroke engine, diameter =100 mm; stroke= 120 mm; speed of the engine=1600 rpm ; fuel consumption=0.2 kg/min; calorific value of fuel is 44000Kj/kg; difference in tension on either side of the brake pulley=40 kg; brake circumference is 300 cm. if the mechanical efficiency is 80 %. Calculate (1) Brake thermal efficiency (2) Indicated thermal efficiency (3) Indicated mean effective pressure (4) brakes pecific fuel consumption.

The following details were noted in a test on a four- cylinder, four stroke engine, diameter =100 mm; stroke= 120 mm; speed of the engine=1600 rpm ; fuel consumption=0.2 kg/min; calorific value of fuel is 44000Kj/kg; difference in ...Read more