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A water kettle has 1 kg of saturated liquid water at P0 . It is on an electric stove that heats it from a hot surface at 500K. Water vapor excapes form the kettle, and when the last liquid drop disappears, the stove is urned off. Find the destruction of exergy in two places: (a) between the hot surface and the water and (b) between teh electrical wire input and the hot surface.
a 0.2-cm-thick 10-cm-high and 15-cm-long circuit board houses electronic components on one side that dissipate a total
underground water is to be pumped by a 70 efficient 3-kw submerged pump to a pool whose free surface is 30 m above the
water is the working fluid in a vapor power cycle. the pressure and temperature at the turbine inlet are 1600 psia and
a steam power plant operates on a rankine cycle with reheat. steam enters the turbine at 600 psia and 700 f. steam is
Steam @ 10 MPa, 600 degrees celcius enters the first-stage turbine of an ideal Rankine cycle with reheat. The steam leaving the reheat section of the steam generator is @ 500 degrees celcius
water steam at 3mpa and 400oc is expanded to 100kpa in an adiabatic turbine with an isentropic efficiency of 92.
the pressure of 200 kgs of water is to be increased from 1 atm to 4 mpa. the water enters through a 20-cm-diameter pipe
a convenient and secure attachment point for fall protection lines is located 35 feet above ground level on the
a vortex tube has an air inlet flow at 20 degrees celsius 200 kpa and two exit flows of 100 kpa one at 0 degrees
The velocity at the inlet is controlled so that it changes according to the following expression. V=a-ct^2, where a = 20m/s, c- 0.8m/s. If the tank initially contains 3kg of liquid water, determine the final mass at the end if 4 seconds of flow.
a piston cylinder device contains 0.5 kg of water at 1.0mpa and 400oc. now it is cooled to 1mpa in sat-v phase.
shape memory alloys are metals that undergo a change in crystaline structure within a relatively narrow temperature
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