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Polytechnic State University Sanluis Jan-2006 - Nov-2010
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Category > Applied SciencesPosted 13 May 2017My Price10.00
An air tank of volume 1.5 m3 is initially at 800 kPa
An air tank of volume 1.5 m3 is initially at 800 kPa and 20°C. At t 0, it begins exhausting through a converging nozzle to sea-level conditions. The throat area is 0.75 cm2 . Estimate (a) the initial mass flow in kg/s, (b) the time required to blow down to 500 kPa, and (c) the time at which the nozzle ceases being choked.