Steam flow meters on an industriai process line recorded maximum flow rates of 57,900 lb per hr for cycles of 15 see duration. To keep this fluctuation off the boilers and allow them to steam evenly at an average rate of 7500 lb per hr, a Ruths steam accumulator was installed, working between 45 and 35 psigA water surface area, ofsufficient size to limit rate of steam disengagement to 1 cuft per sec per sq it, wasconsidered necessary to insure dry steam production. Fin suitable dimensions for the accumulator tank (ie., dia. X length). Note: As actually installed the tank was 6' dia. X 24' long.

Steam flow meters on an industriai process line recorded maximum flow rates of 57,900 lb per hr for cycles of 15 see duration. To keep this fluctuation off the boilers and allow them to steam evenly at an average rate of 7500 lb per hr, a Ruths steam accumulator was installed, working between 45 and 35 psigA water surface area, ofsufficient size to limit rate of steam disengagement to 1 cuft per sec per sq it, wasconsidered necessary to insure dry steam production. Fin suitable dimensions for the accumulator tank (ie., dia. X length). Note: As actually installed the tank was 6' dia. X 24' long.

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter10: Heat Exchangers

Section: Chapter Questions

Problem 10.19P

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Albert bought a portable device to pump his truck tyres. On the manual, he found out that the device is a single stage, single-acting air compressor. Air delivery for thisdevice is 30 bar at a speed of 1500 rev/min. The atmospheric condition of his locationis 87 kPa and 20 ˚C, with a FAD of 0.22 m2/min. The clearance volume is 4% of the swept volume and the stoke/bore ratio is 1.3/1. Take “n” as 1.3, cp = 1.005 kJ/kg K, cv = 0.718 kJ/kg K 1.What is the delivery isothermal efficiency of the compressor percentages to 2 decimal places?
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