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Kent from Bywater
Registered Users
Posts:3
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| 04/02/2008 4:00 PM |
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| I have a spring on my property located slightly above my planned building site. I'm not sure of the flow rate but it would probably fill a 2" pipe. I'm new to this geo therm stuff and am wondering if this might be ideal for heating, cooling and possibly drinking. Also couldn't the water be returned to the natural streambed after going through the system? |
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tuffluckdriller
Registered Users
Posts:406
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| 04/02/2008 4:40 PM |
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Usually the water can be returned.
You need to know the gpm flow of the water, and the temperature of it.
Then you need the heating and cooling loads of your house. From there you can size the system, and see if there is sufficient water flow in the spring. Does the water flow year round?
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Clark Timothy (clark@pinksdx.com)
VP sales, Tuff Luck Geothermal Drilling
Geothermal, Heating and Cooling that's Dirt Cheap! |
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Eric D
Registered Users
Posts:59
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| 04/04/2008 6:27 AM |
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Hi Kent,
Having spring water on your home building site could indicate that you have a good source for home use, but there are many questions I would want answered before betting on it as a reliable supply for geothermal use. As tuffluckdriller pointed out, you need to know at minimum the gpm flow rate and if it is constant or does it change at different times of the year. Other factors needed is the water content and what type of head pressure can it develop?
It sound like an interesting project. Please keep us posted on how things are going.
Regards, |
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Eric D
Southern Michigan
From GeoDoctor
www.geodoc.us |
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Kent from Bywater
Registered Users
Posts:3
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| 04/04/2008 10:10 AM |
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| The flow is fairly constant all year, and I'll do some temp. readings between now and high summer. Does anyone have any low-tech ways to measure flow in a stream bed? I was thinking trying to divert the flow into a wooden channel (three boards nailed together) measure the depth, and the speed of a floating object. Would that give me cubic inches per second? Also there's not much fall to the building site so I was thinking a cistern and a pump. |
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Eric D
Registered Users
Posts:59
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| 04/05/2008 7:56 AM |
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Kent,
The lowest cost flow checking devise that actually works quite well, get yourself a 5 gallon pail and a stop watch. To figure the flow rate in gallons per minute, gpm, take the measured amount of water, in our case, 5 gallons, times 60, then divide by the number of seconds on the stop watch it took to fill it. For example, if it takes 15 seconds to fill the pail, this is the calculation:
(5 x 60) / 15 = 20 gallons per minute
To make it a little simpler, the 5 gallon pail and time ratio are constant, so you can just take the gallons measured and multiply by 60 for our unit of time, which gives you 300. Now all you need do is use your stop watch to measure the time to fill the pail, and what ever number of seconds it takes divide the 300 by it. Here are a few examples:
If it takes 45 seconds to fill the pail:
300/45 = 6.67 gpm
If it takes 12 seconds to fill the pail:
300/12 = 25 gpm
Hope this helps your flow question, |
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Eric D
Southern Michigan
From GeoDoctor
www.geodoc.us |
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