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At steady state, a refrigeration cycle removes 18,000 kJ/hr of energy by heat transfer from a space maintained at -40oC and discharges energy by heat transfer to surroundings at 20oC. If the coefficient of performance of the cycle is 25% of that of a reversible refrigeration cycle operating between the same temperature reservoirs, determine the power input to the cycle in kW.
a cylinder fitted with a piston has an initial volume of 2 ft3 and contains nitrogen at 20 lbfin2 at 80 f degrees. the
determine the thermal efficiency and the required steam flow rate kgs for a reheat-regenerative steam power plant which
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A large stationary Brayton cycle gas-turbine power plant delivers a power output of 100MW to an electric generator. The minimum temperature in the cycle is 300K
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a cylinder having a piston restrained by a linear spring of spring constant 15 knm contains 0.5 kg of saturated vapor
a trailer truck enters a 2 percent uphill grade traveling at 72 kmh and reaches a speed of 108 kmh in 300 m. the cab
five pounds of propane have a volume of 1 ft3 and a pressure of 600 psi. determine the temperature in degr using each
determine the design stress for bolts in a cylinder cover where the load is fluctuating due to gasnbsppressure. the
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