IC Engine Numerical – 5 | Testing & Performance of IC Engines |

Following data relates to 4 stroke four cylinder petrol engine. Air fuel ratio by weight = 16:1,calorific value of the fuel is 45200 kJ/kg, mechanical efficiency = 82 % air standard efficiency =52%, relative efficiency = 70%, volumetric efficiency =78%, stroke to bore ratio is 1.25, suction conditions = 1 bar, 25C , rpm = 2400, power at brake = 72 kW. Calculate i) compression ratio ii) indicated thermal efficiency iii) brake specific fuel consumption and iv) bore & stroke In this lecture, we solve a numerical problem on Testing and Performance of Internal Combustion (IC) Engines. The problem involves engine dimensions, piston speed, brake power, mechanical efficiency, mean effective pressure, and calorific value of fuel. 📚 Topics Covered IC Engine Numerical – 1 Indicated Power (IP) Brake Power (BP) Mechanical Efficiency Mean Effective Pressure (MEP) Bore and Stroke Piston Speed 2-Stroke and 4-Stroke Engine Identification Calorific Value of Fuel Step-by-Step Numerical Solution This lecture is useful for B.E./B.Tech Mechanical Engineering, Diploma students, GATE aspirants, and students studying Testing and Performance of IC Engines. #ICEngine #EnginePerformance #ICEngineNumerical #MechanicalEngineering #Thermodynamics