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A counterflowing heat exchanger cools air at 600 K, 400 kPa to 320 K using a supply of water at 20°C, 200 kPa. The water flow rate is 0.1 kg/s and the air flow rate is 1 kg/s. Assume this can be done in a reversible process by the use of heat engines and neglect kinetic energy changes. Find the water exit temperature and the power out of the heat engine(s).
use constant specific heats at room temperature. round all answers to one decimal place. a simple brayton cycle
A two capacity process tank is to be analyzed using proportional and integral controllers. A process could be a steam jacketed kettle as shown in Figure.1.Water is heated continuously by the steam flow and it is proposed to use a controller to regula..
Load that can be lifted by aerostat balloon An aerostat balloon is filled with hydrogen. It has a volume of 1000m^3 at constant air temperature of 27 degree C and pressure of 0.98bar.
a clock face has negative point charges -q -2q -3q middot middot middot -12q fixed at the positions of the
given a thin-walled square tube with median edge dimensions a x a wall thickness t and a longitudinal slot of
determine the dimentionless parameters that characterize the average velocity of the flow in a smooth pipeline if the
Water is being pumped from a large lake to a reservoir 30 m above at a rate of 5x10-3 m3/s by a 12 kW (shaft) pump. If the irreversible head loss of the piping system is 8m, determine the mechanical efficiency of the pump.
the lower end of the 30 kg slender rod is displaced a small amount and released from the rest. determine the natural
superheated steam at 120 bar and 520c leaves the steam generator of a vapor power plant and enters a turbine with an
a flat-bottomed barge 25 m long and 10 m wide submerged to a depth of 1.5 m is to be pushed up a river at a rate of 8.6
a voltmeter with a range of 0 to 100v reads 2v when the leads are shorted together. the manufacture claims an accuracy
an isobaric heating process raises the temparature of one of one mole of an ideal gas by delta t 100 k. the heat
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