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A mass of 12kg of saturated refrigerant-134a vapor is contained in a frictionless piston-cylinder device at 240kPa. Now 300kJ of heat is transferred to the refrigerant at constant pressure while a 110V source supplies current to a resistor within the cylinder for 6minutes. Determine the current supplied if the final temperature is 70C. Also, show the process on a T-v diagram with respect to the saturation lines.
Refrigerant 134a enters a heat exchanger in a steady state refrigeration system as saturated vapor at 0 °F and exits at 20 °F with no change in pressure.
a single stream tube is selected to characterize the air flow past the wing of an aircraft in flight at an altitude of
these include micrel mm5450 mic5821 allegro a6276ea ucn5832a and texas instruments tpic6c595. these are all serial
a tile-iron consists of a massive plate maintained at 150degc by an embedded electrical heater.nbspthe iron is placed
saturated liquid water at 25 degrees c is pumped to a pressure of 5 mpa in an isothermal process. the specific work
Determine the number of storage bits required in the controller memory so that the accuracy of the joint is as close as possible to, but less than, its repeatability. Use six standard deviations as the measure of repeatability.
A pump station has been designed to lift water out of a 6 metre deep pit (vented to atmosphere) via a centrifigual pump mounted at ground level. Calculate the Net Positive Suction Head (NPSH) for the system ?
The magnetic flux that passes through one turn of a 12-turn coil of wire changes to 4.0 from 9.0 Wb in a time of 0.050 s. The average induced current in the coil is 230 A. What is the resistance of the wire?
a fire hose needs to deliver 25 ls of water to a maximum height of 50 m above ground level. a find the stagnation
for a wind speed of 6 ms a stack gas exit velocity of 20 ms a stack diameter of 4 m a heat emission rate of 15 mw and
Working with processes of an application to ideal gases., While its temperature remains constant at 80 degrees F, 2.5lb of a certain gas, whose cp=0.28 and cv=0.2Btu/lb-degreeR
Construct a suitable finite element model and compare the FEA predictions with the theoretical data and produce a graph to show the stress distribution
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