Designing a monster
- Thread starter Harleyguy
- Start date
:lol:
Harleyguy
Premium Member
Got to love Georgia, Power is cheap. About $.04 per/Kw. And only 3 months a year does it jump up to $.07 per/Kw. So yes, it will be bad, but not that bad... I figure if I can keep it the increase under $500 a month it will be fine. Seams craze, but it's an addiction... Although I think Crack might be cheaper...
I know my friend had a 225 with 3 400's an big pumps heater ,reactor power heads you name it it was full of stuff your forgetting about the fuel recovery fee they add which is just under .04. So I usually tell people to just figure its .12 which works pretty well. With some work you may be able to keep things under that $500.
you may also want to look into a thread by a guy on here liveforphysics or something like that. He modified his pump system to use 3phase motors and a VFD to control them with great results in flow and power reduction.
And you can use eductors on OM's, just have to use a few extra per leg to reduce the pressure a bit. They are cheap flow that dont cost electricity and its not that hard to hide them.
jnarowe
New member
Luke (liveforphysics) is a member of the PSAS and I have met him a couple times. very hard to understand that guy but he builds some wicked stuff. We are discussing the whole VFD deal as I will consider that for my next tank. But I don't have 220V in my tank room so that may be a deal breaker.
lol Yeah my tank has very expesive equiptment to say the least just mainly because they are low wattage. My monthly electric bill for my house and tank is like $250 a month. Im in the process of a upgrade to a 4'x3'x2' tank now which ill be using everything i have now so it wont cost anymore then what im paying now. look up my thread love to have all of your advise on there being theres alot of questions im gonna have for you larger fish tank owners.
Variable frequency device, it converts 220v single phase (typical residential service for a dryer) to 220v three phase, this is connected to a 220v three phase Iwaki 1/2 hp mx250 pump, the vfd controls the electrical supply to the pump, ramps up slowly and ramps down slowly like a natural ocean surge, very much like a real ocean current, I can control the speed of the ramps up and down and the intervals, there is also a simple timing device that signals the vfd to repeat on an ongoing basis. the really great part of it is the overall low current draw, about that of a DART. although the pump draws 460w at full power it's off half the time and when it's on it is only at full power for a very short time, so overall draw is around 150-200w depending how I set it up. I can also change the surge digitally, very easy.
lol I have started 2 thread to help me get started tons of veiws no posts i feel so unliked in the large section 
http://reefcentral.com/forums/showthread.php?s=&threadid=1304106
http://reefcentral.com/forums/showthread.php?s=&threadid=1304106
