Speedbump
Active Member
Here's one I got today in my e-mail. Last name left out purposly. The above was in the Subject of the email. It was a CSV1/60.
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Rancher
Guest
If I had a geothermal HVAC system I would also be considering a CSV valve, a perfect application for it, but how much did his power usage go up?
Rancher
Rancher
Bob NH
In the Trades
If I had a geothermal HVAC system I would be selecting a pump that would operate at its most efficient point, and I would be reinjecting the water to recover as much energy as possible.
When a pump is operated at its most efficient point, it has a lot of head margin at low flow to get the flow going in the circuit.
If I were using the same well for irrigation or other uses, I would add a second pump in series for the higher pressure requirement.
Running a higher pressure pump and throttling it for a geothermal HVAC system destroys much of the efficiency benefit of the system.
When a pump is operated at its most efficient point, it has a lot of head margin at low flow to get the flow going in the circuit.
If I were using the same well for irrigation or other uses, I would add a second pump in series for the higher pressure requirement.
Running a higher pressure pump and throttling it for a geothermal HVAC system destroys much of the efficiency benefit of the system.
Speedbump
Active Member
He says he thinks it went down.
I am not sure what Thinly disguised means.
BobNH, two pumps? Your going to add another pump to a submersible pump system?
bob...
Bob NH
In the Trades
speedbump said:
Not a second pump in the hole; a second pump acting as a second stage, so the pump supplying water to the heat pump can operate at its most efficient point, while the second pump boosts a much smaller amount of water to the higher pressure required for domestic use.
It is not very smart to pump all of the heat pump water to 60 psi just so it can fill the pressure tank. The heat pump usually requires much more water (gallons per day) and usually at less than 15 psi.
Speedbump
Active Member
Your reinventing the wheel again Bob. I don't see how two pumps can be more efficient than one pump running at reduced amps because of the CSV. Not to mention the maintenance being doubled.
bob...
bob...
Sammyhydro11
In the Trades
For engineers the more technical gadgets involved the more it makes sense. They have a hard time grasping simplicity.
SAM
SAM
R
Rancher
Guest
Tell him I got some beach front property over by Yuma that he can buy real cheap.speedbump said:
Rancher
Speedbump
Active Member
Come on Rancher, we know your just jealous.
R
Rancher
Guest
Bob, I hope you didn't tell him that it would save him money from less power usage? If you did, I would have a hard time sleeping at night.
And boy are you old.
Rancher
And boy are you old.
Rancher
Speedbump
Active Member
Well your right about the old thing. Ain't nothin I can do about that one.
I never tell anyone they will save on electric. But when they say they think it saves them energy, it may very well be. It would depend on a lot on his circumstances. No two systems are alike.
bob...
I never tell anyone they will save on electric. But when they say they think it saves them energy, it may very well be. It would depend on a lot on his circumstances. No two systems are alike.
bob...
In most cases the CSV does reduce energy cost. Sorry if it keeps you up nights trying to figure out how. There are just a few hundred thousand people who have said the CSV has reduced their energy cost, so it must be true. If the VFD pump companies can say they reduce energy consumption, then so does the Cycle Stop Valve, as the principle is the same.
