I have a pair of outdoor uninsulated water silos that need to be maintained at or above 145°F. Both are supplied by the same source, which includes a heat exchanger for pre-heating. That same heat exchanger can be used for recirculating one silo at a time. This is a new piping arrangement to coincide with the temperature requirement.
We've had some cold nights around here as winter's approaching and my silo temps haven't been able to keep up with the outdoor temperature drop. It only got down to the 20s so far and last winter we hit just south of -20°F once. Does anybody know of a good formula/correction factor to compensate for outdoor temperature in such a situation?
I'm using Peter's SMC algorithm to control the steam and it's worked great for months, so I don't think that's an issue. It seems like I simply need to be more proactive in accounting for the cooler nights.
Thanks in advance.
We've had some cold nights around here as winter's approaching and my silo temps haven't been able to keep up with the outdoor temperature drop. It only got down to the 20s so far and last winter we hit just south of -20°F once. Does anybody know of a good formula/correction factor to compensate for outdoor temperature in such a situation?
I'm using Peter's SMC algorithm to control the steam and it's worked great for months, so I don't think that's an issue. It seems like I simply need to be more proactive in accounting for the cooler nights.
Thanks in advance.