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A Carnot heat engine receives heat from a reservoir at 900 degrees Celsius at a rate of 800kJ/min and rejects the waste heat to the ambient air at 27 degrees Celsius. The entire work output of the heat engine is used to drive a refrigerator that removes heat from the refrigerated space at -5 degrees Celsius and transfers it to the same ambient air to 27 degrees Celsius. Determine (a) the maximum rate of heat removal from the refrigerated space and (b) the total rate of heat rejection to the ambient air.
a new dam project will require 48000 a year in maintenance costs after it is complete. these maintenance costs will
in an experiment similar to the procedure set out for part a of the calorimetry experiment 1.500 g of mgs was combined
a weight attached to a spring of stiffness 525nm has a viscous damping device. when the weight is displaced and
a 90-lbf triangular plate is supported by two cables as shown. when the plate is in position nbspshown the angular
a carnot heat pump is to be used for heating house in winter. the house temperature is set at 25oc. one day the outdoor
compute the second specimen's radius after deformation.
sketch a system of mass m which is accleerated from rest to a velocity v2 raised to a height of elevation h and cooled
What strategies could be used to counteract the increased Nitric oxides emissions with ethanol blended petrol?
a 12 cantilever beam has a 4000 lb load at the end of the beam. draw the shear force and bending moment diagrams and
baseline validationdetermine the natural frequencies of the system-for the baseline systemdesign modificationnotice
solar energy reaching the earth is about 1350 wm2 outside the earths atmosphere and 950 wm2 on earths surface normal to
a tank contains a gas at an absolute pressure of 104.0 kpa. the pressure in the tank is measured using a mercury p13.59
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