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A Rankine cycle operating with ammonia is heated by some low temperature source so the highest T is 120oC at a pressure of 5000 kPa. Its low pressure is 1003 kPa and it operates with one open feed water heater at 2033 kPa. The total flow rate is 5 kg/s. Find the extraction flow rate to the feed water heater assuming its outlet state is saturated liquid at 2033 kPa. Find the total power to the two pumps.
an actual refrigerator absorbs 500 kj of heat from a sink at 250 k and reject 660 kj of heat to environment at 300 k.
(a) Determine the surface temperatures on the two sides of the circuit board.
an engine rejects 1260 mjh when running at a thermal efficiency of 22. the calorific value of the fuel used is 42 mjkg.
1. imagine a thin cylinder of initial internal diameter do initial wall thickness to and initial fixed length
water is the working fluid in a vapor power cycle. the pressure and temperature at the turbine inlet are 1600 psia and
The total force Fa + Fb exerted on the shelter is in the direction parallel to the line L and it's magnitude is 400 lb. Graphically determine the magnitudes of Fa and Fb.
What kind of metals are often recommended for use at low temperatures, particularly when any sudden loading of the part is expected?
a regional power plant is updating one of its existing 25mw natural gas turbans with a new more efficient model as a
a water clock clepsydra used in ancient greece is designed as a vessel with a small orific o. the time is determined
a tennis ball is struck from a height of 7.5 ft. it strikes the smooth ground at a distance of 20 ft away and bounces
a 1 kg block of copper at 350degc is quenched in a 10 kg oil bath initially at ambient temperature of 20degc.
ethanol c2h5oh is burned with air in a sie with a fuel-rich mixture. consider mon 89 and ron 107 for this fuel.
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