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An air-conditioning unit takes in outside air at 46oC and 100 kPa having a relative humidity of 16%. The air is cooled and dehumidified to provide an outlet temperature of 29oC and relative humidity of 39%. The coefficient of performance of the air-conditioning unit is 2.92. Determine:
a. The mass of water removed per unit of dry air
b. The cooling rate per unit mass of dry air
c. The input power to the vapor-compression refrigeration system per unit mass of dry air.
derive the scaling relation for the strain energy release rate of crack extension under fixed displacement. clearly
the boat is to be pulled onto shore using two ropes. If the resultant force is to be 1000 N, directed along the keel aa , determine the magnitude of forces T, P acting in each rope at the angle teta of P so that the magnitude of P is minimum. T ac..
consider a gas-turbine cycle with two stages of compression and two stages of expansion. the pressure ratio across each
using excel find the value of the 95 confidence interval for a single-sample using the z variable and the students
Determine (a) the velocity of the air at the duct inlet and (b) the temperature of the air at the exit.
a hovercraft has a square planform a mass of 1.8 kg and has a plenum pressure requirement of 125 pa. a levitation fan
consider a vertical plate of dimension 0.25 m x 0.50 m that is at ts100 c in a quiescent environment at t infinity 20
Determine the position of the neutral axis relative to the bottom face - dimensions of a 6 m long asymmetric I-beam are shown. Determine the position of the neutral axis relative to the bottom face
the velocity of a particle moving in the x-y plane is given by 6.12i 3.24j ms at time t3.65s. its average acceleration
heat treatment is common in processing semiconductor materials. a 200- mm-diameter silicon wafer with thickness of 725
Determine the peak runoff from 500 ft of pavement(32ft wide) that drains toward a gutter(for 10 years freq. storm), the pavement slope is .0005, n=.016 and c=.9
would a flagpole made of steel or aluminum freeze ones tongue to it faster? why? thermal conductivity 2. the outer
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