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Showing 1 to 2 of 2 for “"Critical Valve"”.
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Supersonic wind-tunnel : nozzle design and control system analysis
… wind- tunnels. Without pressure recovery the critical flow pressure ratio through the tunnel for Mach 2,35 nozzles, is 2,53. Therefore it may be shown that the subsonic diffuser, and the silencer incorporated into it, is about 75% efficient. The analysis and modification to the existing …
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Boiler feed pump low load – leak off recirculation study
… start-up operating conditions. The recirculation valve, also known as a leak off valve, experiences a very high pressure difference and cavitation pitting is common due to the water being close to saturation. There are various ways in which the recirculation flow is controlled in the industry such …