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The viscosity of water is 1.65 lbm/h · ft at 100?F. A small capillary tube 50 ± 0.01 ft long is to be used to check this value. Calculate the maximum allowable flow rate for an inside tube diameter of 0.100 ± 0.001 in. Calculate the pressure drop for this flow rate and estimate the allowable uncertainty in the pressure drop in order that the uncertainty in the viscosity does not exceed 5 percent. Assume that the flow rate is measured within ±0.01 lbm/h.
a 9 m3 tank has two sections separated by a membrane both of which contain nitrogen gas. the nitrogen in section a has
A regenerative steam power cycle has a closed feed water heater that heats 20 kg/s of water from 100°C, 20 MPa to 250°C, 20 MPa. The extraction steam from the turbine enters the heater at 4 MPa, 275°C, and leaves as saturated liquid. What is the req..
Draw the T-s diagram (hint: it would help to begin with a schematic of the cycle) and.
an aluminum pin fin has a diameter of 4 mm and a length of 20 mm. calculate the heat dissipated when the base
The mean and the standard deviation for N.
A single-stage ideal regenerative steam cycle has a boiler pressure and temperature of 5000 kPa and 500 C, and a condensing pressure of 10 kPa. The extraction pressure is 500 kPa. If the regenerative heater is a closed heater with the condensate pump..
two structural members b and c are bolted to the bracket a. knowing that the tension in member b is 6kn and that the
the motion of a particle is defined by the relation x6t2-840cospit where x and t are expressed in inches and seconds
refrigerant -134a at 800kPa and 25 C is throttled to a temperature of -20C. determine the pressure and the internal energy of the refrigerant at the final state.
Rhodium (Rh) has an atomic weight of 102.91 g/mol and atomic radius of 1.345 Å. Determine whether it has an FCC or BCC crystal structure, if its density is 12.41 g/cm3. What is its lattice constant? Explain your answers.
A blind cylindrical hole of 2cm diameter and 3 cm in length is drilled into a metal slab having emissivity 0.7. if the metal slab is maintained at 650 k , make calculations for the radiation heat escape from the hole.
user uploaded imagea tank of water sits on a cart with frictionless wheels as shown. the cart is attached using a cable
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