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What is the appropriate model tow velocity in m/s? A boat of length 50 m is designed to cruise at 30 mph and is to be tested in a tow tank with a model of length 0.5 m.
Determine (i) the inlet air velocity in m/s and (ii) volumetric flow rate in L/min. Show correct units. State all assumptions. Use the problem solving methodology.
If the fluid is gasoline at 20 degrees Celsius and the flow enters the blades radially, estimate the theoretical (a) flow rate in gal/min, (b) horsepower, and (c) head in ft.
Knowing the mass center of the automobile and driver is 2 ft from the wall. Determine the minimum required value of the coefficient of static friction between the tires and the wall.
Draw a system diagram and label all the components. Number the flow, starting with a 1 at the pump inlet. The actual thermal efficiency of the cycle. Compare to the answer you got in problem I and II.
Calculate and discuss the blood and water outlet temperatures as a function of the water flow rate for the range 2 to 4 liter/min.
Calculate the overall heat transfer coefficient (U) for the assumed tube diameter, finshape and material. Use correlations to estimate hot-and cold-side convectioncoefficients.
A boat of length 50m is designed to cruise at 30 mph and is to be tested in a tow tank with a model of length 0.5 m. if the model wave drag is 1.2 N, what is the estimated full size boat wave drag
After developing the velocity profile of this Poiseuille flow across the 2m long tube, what is the estimated velocity in m/s at a radius of 1.2 mm the tube?
For liquid propane, hf=-118,900kj/kmol. Determine the temperature of the combustion products, in K, for complete combustion with the theoretical amount of air.
A solid 1.5-m-diameter sphere floats at the interface between water (SG = 1.0) and mercury (SG = 13.56) such that 30 percent is in the water. What is the specific gravity of the sphere?
Determine the pressure drop in kPa along a 2m length of the tube, which is far from the tube entrance so that the only component velocity is parallel to the tube axis.
The specific heat of air can be estimated from the .appropriate table. Determine the inlet air velocity in m/s and volumetric flow rate in L/min.
Water at 200kpa with a quality of 90% enters a well insulated compressor. it leaves this compressor at 1 Mpa, 300 celcius degree. How much specific work is required for this process?
Determine the rate at which entropy is produced within the turbine per Kg of steam flowing, in KJ/Kg K. The changes in Kinetic and potential energies can be negleglected.
A furnace is shaped like along semicylindrical duct of diameter 15 ft. Determine net radiation heat transfer from the dome to the base surface per unit length during steady operation.
If the plane becomes airborne at a speed of 270 km/hr, determine the length of runway required for the plane to take off.
Design a system using filters having an efficiency of 0.5 and a pressure loss of 0.14 in-wg at 350 ft/min face velocity. Pressure loss should not exceed 0.2 in-wg.
Design a 1D compressed air rocket engine. Assume standard atm conditions and isentropic flow. k=1.4, R=0.287. Determine tank ressure required producing a Machof 1,3,5, 7, and 9.
The number average molecular weight of polystyrene is 250,000 g/mol. Compute the number average degree of polymerization (atomic weight of C= 12, H=1)
Compute the work and heat transfer per unit mass for each process in, kj/kg, and the entropy production, in kj/k, and determine the thermal efficiency of the cycle and compare to the Carnot efficiency
Iron titanate, FeTiO3, forms in the illmenite crystal structure that consists of an HCP arrangement of O2- ions. What fraction of the total octahedral sites will be occupied?
Determine the ratio of work delivered by the turbine to the work consumed by the pump. Assume the entire cycle to be reversible and the heat losses from the pump and the turbine to be negligible.
Determine the maximum axial compressive load P that can be supported by the column if a factor of safety of 1.9 with resect to failure by buckling is specified.