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The thermal efficiency of a reversible power cycle operating between hot and cold reservoirs is 20%. Evaluate the coefficient of performance of
a) a reversible refrigeration cycle operating between the same two reservoirs.
b) a reversible heat pump cycle operating between the same two reservoirs. State all assumptions
Present an overview of (i) impact testing methods, and (ii) non-destructive testing (NDT) methods presented in your textbook. Elaborate on one type of impact testing as well as one type of non-destructive testing method. What are the advantages of us..
the density of atmospheric air is about 1.15 kgm3which we assume is constant. how large an absolute pressure will
create the main window shown here. you may use any layout manager or you may lay the components out manually.when a
an object whose mass is 50 lb attached to a rope wound around a pulley. the radius of the pulley is 3 in. if the mass
Solve the velocity distributions in the two fluids.
water at 20 bar 400degc enters a turbine operating at steady state and exits at 1.5 bar. stray heat transfer and
liquid octane c8h18 at 25ordmc 1.0 atm enters a well-insulated reactor and reacts with air entering at the same
a cylinder of an aluminum alloy with a radius of 2.00 cm and a length of 11.00000cm is subjected to a force of 41.0kn.
in a process in which ball bearings are produced steel ball bearings of .9 cm diameter are quenched by dropping them at
a mass of 5kg of saturated liquid-vapor mixture of water is contained in a piston-cylinder device at 125kpa. initially
material a has a fracture toughness and yield stress ten times that of material b a write an expression for the
water at 200 lbfin2 and 300 f is throttled adiabatically through a valve to 30 lbfin2. the inlet velocity is 5 fts and
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