10.3 For the same engine, fuels, and engine running conditions of the above problem, what is the value if the swept volume of the engine is 1,000 cc, and volumetric efficiency is 85% ? Consider COG constituents as in problem 10.1. 10.4 A naturally-aspirated dual fuol Answer: 0.58 o is running on methane and pilot diocel TL Practice Problems dual-fuel engine is running on coke-oven gas, whose constituents are 56.8% hydrogen, 5.9% carbon monoxide, 29.5% methane, 2.2% carbon dioxide, and 5.6% nitrogen on a volume basis. Determine the molecular mass, density and lower heating value of the producer gas. Consider air density at STP as 1.2 kg/m³, molecular mass of air as 28.97 kg/kmol and energy density of hydrogen, carbon monoxide, and methane as 10.76 MJ/m³, 12.62 MJ/m³, and 35.87 MJ/m³, respectively. Answers: 10.044, 0.416 kg/m³ at STP, 17.44 MJ/m³ hongine is running at 2,000 rpm. The amount of 107 stroke, naturally-aspirated dual-fuel engine is running on the above coke-oven gas 34That in th Hydrog 11.3 De folle Rate: A