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A counter flow cooling tower cools 2000 gal/min water from 104 F to 85 F with 210,000 ft^3/min of air at 90 F Dry bulb Temperature and 76 F WBT. The Mass transfer coefficient -surface area product is hA= 123lbm/hr ft^3. Air mass flow rate per unit cross sectional area of the cooling tower is [(mdot)a /A ]=1800 lbm/hr ft^2. Determine the volume and height of the cooling tower, effectiveness and relative humidity.
Determine the volume change, in ft^3, when 1 lbm of water, initially saturated liquid, is heated to saturated vapor while pressure remains constant at: Sketch a T-v diagram and indicate all relevant state points (eight total points).
a truncated cone 20 cm high is constructed of aluminum. the diameter at the top is 8 cm and the diameter at the bottom
a furnace needs hot pressurized gas at 200 kpa. this gas is to be provided by the exhaust from a gas turbine operating
a 2-kg sphere a is moving toward the right at 4 ms when it strikes the end of a 5 kg slender bar b. the coefficient of
While tripping out using a high viscosity mud a driller pumps five barrels of 11 ppg mude into the 4-1/2 inch 16.6lbf/ft drill pipe (its called a pill).Drill pipe I.D .is 3.826 in. With capacity of 0.0142bll/ft. If the well is kept full of 9ppg mud l..
At 500ºC the diffusion coefficient for Zn in Cu is 4.0E-18 m2/s. The activation energy for diffusion of Zn in Cu is 189 kJ/mol. Therefore at 700ºC, the diffusion coefficient for Zn in Cu is
determine the resultant force r made by the force p having a magnitude ofnbsp50n and making an angle theta 35 degrees
an electric wire made of c14500 copper is stretched between two street supports at 20degc so that a stress of 40 mpa is
a rectangular room has dimensionslength 3.5m width 4.5m height 3.25ma mercury barometer in the room shows a pressure
A meteorologist uses a pitot -static tube to measure the wind speed in a tornado. Based on the damage caused by the storm, the tornado is rated as EF5 on the enhanced Fujita Scale. This means that the wind speed is estimated to be in the range of 261..
a room that normally contains 40 people is to be air-conditioned with window air- conditioning units of 5-kw cooling
problem a tension link shown to the right is used in earth-moving equipment and is subjected to cyclic stresses varying
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