During a trial of a single cylinder, a four-stroke diesel engine, the following observations were recorded:...

Transcribed Image Text:

During a trial of a single cylinder, a four-stroke diesel engine, the following observations were recorded: Bore = 340 mm, stroke = 440 mm, rpm = 400, area of indicator diagram = 465 mm², length of diagram = 60 mm, spring constant = 0.6 bar/mm, load on hydraulic dynamometer = 950 N. dynamometer constant = 7460, fuel used = 10.6 kg/h, calorific value of fuel (CV) = 49500 kJ/kg, cooling water circulated-25 kg/min, rise in temp. of cooling water=25°C, mass analysis of fuel: carbon = 84%, hydrogen = 15%, incombustible = 1%, volume analysis of exhaust gas: carbon dioxide = 9%, oxygen = 10%, temperature of exhaust gases = 400°C, specific heat of exhaust gas = 1.05 kJ/kg °C, partial pressure of steam in exhaust gas = 0.030 bar, specific heat of superheated steam= 2.1 kJ/kg C, saturation temp. of steam at 0.030 bar = 24.1°C. Draw up heat balance sheet on minute basis. [IAS, 2011] During a trial of a single cylinder, a four-stroke diesel engine, the following observations were recorded: Bore = 340 mm, stroke = 440 mm, rpm = 400, area of indicator diagram = 465 mm², length of diagram = 60 mm, spring constant = 0.6 bar/mm, load on hydraulic dynamometer = 950 N. dynamometer constant = 7460, fuel used = 10.6 kg/h, calorific value of fuel (CV) = 49500 kJ/kg, cooling water circulated-25 kg/min, rise in temp. of cooling water=25°C, mass analysis of fuel: carbon = 84%, hydrogen = 15%, incombustible = 1%, volume analysis of exhaust gas: carbon dioxide = 9%, oxygen = 10%, temperature of exhaust gases = 400°C, specific heat of exhaust gas = 1.05 kJ/kg °C, partial pressure of steam in exhaust gas = 0.030 bar, specific heat of superheated steam= 2.1 kJ/kg C, saturation temp. of steam at 0.030 bar = 24.1°C. Draw up heat balance sheet on minute basis. [IAS, 2011]

Answer rating: 100% (QA)

The detailed ... View the full answer