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1. An in-line six cylinder, 6.6 liter, four-stroke cycle SI engine with multiple port fuel injection operates at 3000 RPM, with a volumetric efficiency of 89%. The intake manifold runner can be approximated as round pipes with an inside diameter of 4.0 cm. Inlet temperature to the manifold is 27°C.Calculate: a) average velocity and mass flow rate of air to each cylinder, using inlet temperature to evaluate properties.b) Reynolds number in the runner to cylinder #1, which is 40 cm long.c) Temperature of the air entering cylinder #1 if the runner wall temperature is constant @ 67C.d) wall temperature needed for the runner to cylinder #3, such that the cylinder air inlet temperature is the same as that in cylinder #1. Runner length for cylinder #3 is 15 cm.
calculate the vapor pressure-temperature relationship of liquid iron.
your job is to create a design of Rankine cycle that create the most possible power from this heat source . you may use any working fluid for which you can find the properties , assume the turbines 92% efficient and pumps 85%
measure the velocity of air. If the deflection deflection (the vertical distance between the fluid levels in the two arms) is 7.3 cm, determine the air velocity. Take the density of air to be 1.25 kg/m3.
approximately how many pounds of downward pressure is placed on a piston in an internal combustion engine at the moment of ignition? I know this will vary some depending on the type fuel, the size of the combustion chamber and ect.
a constriction in a pipe will cause the velocity to rise and the pressure to fall at section 2 in the throat.nbspthe
Consider a cold air-standard Diesel cycle. Operating data at principal states in the cycle are given in the table below.For k=1.4 Cv=0.718kJ/(kg*k), and Cp= 1.005 kJ/(kg*K)
calculate the enthalpy change of the universe during the process. Cp=Cv = 4.18 kj/kgK
Determine an expression for the number of cycles to failure, Nf if the initial crack size is a0. State any assumptions you make.
Consider a 4-in square steel bar subjected to transverse biaxial tensile stresses of 20 ksi in the x direction and 10 ksi in the y direction.
Estimate the time necessary to achieve the same concentration at a 5.3-mm position for an identical steel and at the same carburizing temperature.
Determine the time taken for the crate to come to a rest and the distance travelled if the coefficient of dynamic friction is 0.4
Compute the percentage ionic character of the interatomic bond for each of the following compounds: MgO, GaP, CsF, CdS, and FeO
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