Quote:
Originally posted by myv65
I haven't done what you suggest, but it's pretty routine to keep pumps running 24/7 in the systems we used in the paper industry. The pump energy is enough to keep the oil warm during machine outages. A fun one was our hot oil systems. At room temperature the oil is pretty thick and our flow control valves would be wide open yet system flow well below setpoint. Pump energy would get you up to ~140°F and almost bring the valve off its wide-open position. By the time the burners took it to 550°F and the oil's viscosity dropped below water the flow control valve would darn near close to keep from overshooting the desired loop flow. [/b]
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<Off topic>
Who's black liquor recovery boiler do you have??