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A balanced-cross-flow compact heat exchanger is required for an air heating system that processes 0.5 kg/s air. The inlet temperature for the hot water is 295 K, and the cold air enters at 270 K to be heated to 287 K. The inlet pressure for the hot water is 986 mbar. Determine the dimensions of the heat exchanger with a pressure drop of 3300 Pa.
If a flat surface is oriented perpendicular to the plane of projection it will appear in the drawing as a: The distance between two horizontal planes called.
a photocell is composed of germaniumand it is exposed to filtered solar radiation. the filter passes all wavelengths
an ideal gas carnot cycle with air in a piston cylinder has a high temperature of 1200 k and a heat rejection at 400 k.
A mixture of dry air and water vapor is at a temperature of 21C under a pressure of 101.3 kPa.The dew point temperature is 15C.(Ps= saturation pressure at 15C=1.7044 kPa;Pd=saturation pressure at 21C=2.4861 kPa) find humidity ratio and relative hu..
Five pounds of propane have a volume of 1 ft3 and a pressure of 600 psi. Determine the temperature (in °R) using each of the following methods.
an inventor claims to have invented a heat engine that operates using energy reservirs whose temperatures are 600k and
the water level of a tank on a building roof is 20m above the ground. a hose leads from tank bottom to the ground. the
air is compressed in a standard compressor. its intital state is 100 kpa at 17 c and its final state is 600 kpa and 57
two moles of nitrogen are initially at 10 bar and 600 k state 1 in a horizontal pistoncylinder device. they are
a double acting hydraulic cylinder is hooked up in the regenerative circuit. the relief valve setting is 1000 psi. the
a system for delivering lawn fertilizer in liquid form. the nozzle on the end of the hose requires 20 psig of pressure
A cylindrical S-950 alloy specimen is under a tensile stress test. The specimen is 975 mm long. If the tensile stress is 300 Mpa and temperature is at 730C. What is the total elongation after 4 hour steady state operation? Assume the total of both in..
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