The engine of a small truck is a four-cylinder, four-liter Cl that operates on an air-standard...

 

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The engine of a small truck is a four-cylinder, four-liter Cl that operates on an air-standard Dual cycle using light diesel fuel at an air-fuel ratio of 18. The compression ratio of the engine is 16:1 and the cylinder bore diameter is 10 cm. At the start of the compression stroke, conditions in the cylinders are 60°C and 100 KPa with a 2% exhaust residual. It can be assumed that half of the heat input from combustion is added at constant volume and half at constant pressure. If heating value of the diesel fuel is 42500 (kJ/kg), Calculate the: 5.1 Temperature and pressure at each state of the cycle 5.2 Indicated thermal efficiency 5.3 Exhaust temperature 5.4 Engine volumetric efficiency 5.5 Mean effective pressure (8) (3) (3) (5) The engine of a small truck is a four-cylinder, four-liter Cl that operates on an air-standard Dual cycle using light diesel fuel at an air-fuel ratio of 18. The compression ratio of the engine is 16:1 and the cylinder bore diameter is 10 cm. At the start of the compression stroke, conditions in the cylinders are 60°C and 100 KPa with a 2% exhaust residual. It can be assumed that half of the heat input from combustion is added at constant volume and half at constant pressure. If heating value of the diesel fuel is 42500 (kJ/kg), Calculate the: 5.1 Temperature and pressure at each state of the cycle 5.2 Indicated thermal efficiency 5.3 Exhaust temperature 5.4 Engine volumetric efficiency 5.5 Mean effective pressure (8) (3) (3) (5)

Answer rating: 100% (QA)

Given data Cylinder bore diameter d10cm Airfuel ratio 18 Compression ratio CR161 Initial conditions ... View the full answer