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1.Saturated liquid water at 1000 kPa flows at 2 kg/s inside a 10 cm outer diameter steel pipe and outside of the pipe is a flow of hot gases at 1000 K with a convection coefficient of h = 150 W/m2 K. Neglect any ?T in the steel and any inside convection h and find the length of pipe needed to bring the water to saturated vapor.
2.A large condenser (heat exchanger) in a power plant must transfer a total of 100 MW from steam running in a pipe to sea water being pumped through the heat exchanger. Assume the wall separating the steam and seawater is 4 mm of steel, conductivity 15 W/m K and that a maximum of 5°C difference between the two fluids is allowed in the design. Find the required minimum area for the heat transfer neglecting any convective heat transfer in the flows.
Given a sand with a moisture content of 10%, how much water needs to be added to bring the sand to a moisture content of 20%
The forces F1, F2, and F3, all of which act on point A of the bracket, arespecified in three different ways. Determine the x and y scalar components of each of the three forces.
determine the force in member AC, FH, and FG and indicate if the member is in tension or compression. List all zero force members.
Determine the compressive strengths of the following
A distance of 72.55 ft is recorded using a steel tape weighing 0.016 lb per foot. The tapes is supported only at the ends with a tension of 15 lb. Find the distance corrected for sag.
The natural ground water table at a site is located at a depth of 2m below the ground water. Laboratory tests reveal that the voidratio of the soil is 0.85 while the grain size corresponding to 10%finer is 0.05 mm.
The business it to make dinner ware for various markets this will include plastic utensils (forks, knives, spoon, etc) as well as low end flat ware suitable for institutions such as high school college cafeterias.
The variation in the diffusion coefficient with temperature, over an appropriate range of temperature, can usually be approximated as follows: D= (D0)e^-(Q/(KT) where, Q = activation energy (eV/atom) and k = Boltzmann's constant (8.616*10-5 eV/ato..
In a curved prestressed bridge, how should the guided bearings in piers of the curved region be oriented with respect to the fixed bearing in abutment?
According to his will: First give one coin to manager. 1/5th of the remaining to the elder son. Now give one coin to the manager and 1/5th of the remaining to second son and so on.
The flow is assumed to be laminar and the film thickness, H, constant. Using a coordinate system located on the plate at the surface of the pool, complete the following: a. Dram and sketch the system. Include coordinate system in your sketch.
Estimate the theoretical fracture strength of a brittle material ifit is known that fracture occurs by the propagation of anelliptically shaped surface crack of length
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