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A 5.23 ft3 rigid tank contains saturated refrigerant-134a at 100 psia. Initially, 12 percent of the volume is occupied by liquid and the rest by vapor. A valve at the top of the tank is now opened, and vapor is allowed to escape slowly from the tank. Heat is transferred to the refrigerant such that the pressure inside the tank remains constant. The valve is closed when the last drop of liquid in the tank is vaporized. Determine the total heat transfer for this process.
blood flows from the left ventricle of the heart up through the ascending aorta. this system can be modeled as a
how do you calculate the strain of a solid cantilever bending beam fixed at one end if given curvature of 0.0243 m and
A motor has a disk mounted on its shaft. The disk has a diameter of 1 foot and weighs 60 pounds. Starting from rest, the motor rotates at 350 rpm after 5 seconds. If the motor has a 92% efficiency, determine the input power in watts.
Steam enters a diffuser at 20 psia and 240oF with a velocity of 900 ft/s and exits as saturated vapor at 240oF and 100 ft/s. The exit area of the diffuser is 1 ft2. Determine (a) the mass flow rate of steam and (b) the rate of entropy generation.
Refrigerent 134a at a flow rate of 0.5 lb/s enters a heat exchanger in a refrigeration system operating at steady state as saturated liquid at 20 degrees Fahrenheit at a pressure of 20lbf/in^2. A separate air stream passes in counter flow to the refr..
for a flow in the xy plane the x component of velocity is given by u ax2y2 where a 0.3 m-3s-1 and x and y are
a solar-powered rankine cycle power plant uses 18.5 x 103 m2 of solar collectors. refrigerant-22 is used as the working
the hawkins supply company is currently faced with an inventory rotation problem.this difficulty stems from the fact
1. work at a rate of 25 kw is done by a paddle wheel on a slurry contained within a closed rigid tank. heat transfer
a machinist is making engine parts with axle diameter of 0.7 inch. a random sample of 15 parts shows mean diameter
Honda Civic 2012 model has an EPA rating of 28 mpg city and 39 mpg highway. What is the thermal efficiency of Honda Civic for city and highway respectively?
as a particle moves from the origin to 12i 6j m it is acted upon by a force given by 4i 8j n. calculate the work done
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