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Looking for an answer to 13.9 Which uses information from 138 23% A four-cylinder petrol engine with a bore of 63 mm and a stroke of 76 mm was tested at full throttle at 3000 rev min over

Looking for an answer to 13.9. Which uses information from 13.8

(23%) A four-cylinder petrol engine with a bore of 63 mm and a stroke of 76 mm was tested at full throttle at 3000 rev/min over a range of mixture strengths. The following readings were taken during the test: 13.8 4 162 165.5 169 170 169 162 159 Brake load/(N) Fuel consumption/(ml/s) 2.08 2.04 2.17 2.50 2.84 3.40 3.56 max poucr bmep s highest Problems he relative density of the fuel is-0.724. Calculate the corresponding values of bmep and specific fuel consumption. Plot a consumption loop and obtain from it the corresponding values for maximum power and maximum economy. The bp in kilowatts is given by WN/26 830, where W is the brake load in newtons and N is the engine speed in revolutions per minute (8.02 bar; 0.34 kg/kW h; 7.84 bar; 0.28 kg/kW h) For the test outlined in Problem 13.8 an air box was fitted which had an orifice of 41.65 mm diameter with a discharge coefficient of 0.6. The corresponding manometer readings in millimetres of water were as follows: 13.9 33.50 33.50 33.50 33.80 33.80 34.25 34.80 r at inlet as 1.215 kg/m3. Plot to a base of air-fuel ratio graphs at maximum power Manometer/(mm water) of bp and specific fuel consumption. What are the air-fuel ratios and maximum economy? (23%) A four-cylinder petrol engine with a bore of 63 mm and a stroke of 76 mm was tested at full throttle at 3000 rev/min over a range of mixture strengths. The following readings were taken during the test: 13.8 4 162 165.5 169 170 169 162 159 Brake load/(N) Fuel consumption/(ml/s) 2.08 2.04 2.17 2.50 2.84 3.40 3.56
max poucr bmep s highest Problems he relative density of the fuel is-0.724. Calculate the corresponding values of bmep and specific fuel consumption. Plot a consumption loop and obtain from it the corresponding values for maximum power and maximum economy. The bp in kilowatts is given by WN/26 830, where W is the brake load in newtons and N is the engine speed in revolutions per minute (8.02 bar; 0.34 kg/kW h; 7.84 bar; 0.28 kg/kW h) For the test outlined in Problem 13.8 an air box was fitted which had an orifice of 41.65 mm diameter with a discharge coefficient of 0.6. The corresponding manometer readings in millimetres of water were as follows: 13.9 33.50 33.50 33.50 33.80 33.80 34.25 34.80 r at inlet as 1.215 kg/m3. Plot to a base of air-fuel ratio graphs at maximum power Manometer/(mm water) of bp and specific fuel consumption. What are the air-fuel ratios and maximum economy?

Apr 27 2020 View more View Less

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