What is the value of the rate of flow of fuel if the coefficient discharge of fuel is 0.75, area of the jet is 0.885 mm^2, density of the fuel is 780 kg/m^3, and pressure differential causing fuel flow is 15000 Pa?(a) 3.21 g/s(b) 4.21 g/s(c) 5.21 g/s(d) 6.21 g/sThis question was posed to me in an interview.This interesting question is from Petrol Engine Fuel System in portion Fuel Supply System of Automobile Engineering

What is the value of the rate of flow of fuel if the coefficient disch

1.	What is the value of the rate of flow of fuel if the coefficient discharge of fuel is 0.75, area of the jet is 0.885 mm^2, density of the fuel is 780 kg/m^3, and pressure differential causing fuel flow is 15000 Pa?(a) 3.21 g/s(b) 4.21 g/s(c) 5.21 g/s(d) 6.21 g/sThis question was posed to me in an interview.This interesting question is from Petrol Engine Fuel System in portion Fuel Supply System of Automobile Engineering
Answer» The CORRECT option is (a) 3.21 g/s To elaborate: Pressure differential causing fuel FLOW = ΔP = 15000 PA, coefficient of discharge = Cf = 0.75, density of the fuel = ρ = 780 kg/m^3, and AREA of the jet = A = 0.885 mm^2. The rate of flow of fuel = Wf = A* Cf\(\sqrt{2\rho\Delta P}\) = 0.8850.7510^-6\(\sqrt{278015000}\) = 3.21*10^-3 kg/s = 3.21g/s.

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