Posted by Ben on October 25, 2007, 8:48 pm
Hello again,
Trying to figure out how much copper pipe, what diameter and at what flow
rate to use geothermal to cool water. Anyone here maybe help with a formula
or walk me through the thought process? Really looking for a formula I can
do what if scenarios with.
Here are some numbers to get things started but I'm not even sure I know the
right questions to ask. Input temp of water is 65 degrees F, underground
temp is 55 degrees F. For the sake of the question lets assume the input
temp is constant, the water supply is unlimited and ground is clay with no
obstructions.
If you wanted an output flow rate of 5,000 GPH with output temp at or near
ground temp (so minus 10 F of what goes in), how much pipe would you need,
what diameter and how did you come up with that?
Thanks for any assistance.
=Ben
PS: Please don't flame me for being in wrong group, there are many
alternative power posts here but if you have a suggested group for
geothermal please send.
Posted by John on October 28, 2007, 8:33 pm
>Hello again,
>Trying to figure out how much copper pipe, what diameter and at what flow
>rate to use geothermal to cool water. Anyone here maybe help with a formula
>or walk me through the thought process? Really looking for a formula I can
>do what if scenarios with.
>Here are some numbers to get things started but I'm not even sure I know the
>right questions to ask. Input temp of water is 65 degrees F, underground
>temp is 55 degrees F. For the sake of the question lets assume the input
>temp is constant, the water supply is unlimited and ground is clay with no
>obstructions.
>If you wanted an output flow rate of 5,000 GPH with output temp at or near
>ground temp (so minus 10 F of what goes in), how much pipe would you need,
>what diameter and how did you come up with that?
>Thanks for any assistance.
>=Ben
>PS: Please don't flame me for being in wrong group, there are many
>alternative power posts here but if you have a suggested group for
>geothermal please send.
I have read many reports of geothermal instalations and I can give you
an idea of what has been done but if you want to calculate everything
I sugest that you go to the Canadian site
http://www.retscreen.net/
They have several programs that may help you
John
Posted by John on October 28, 2007, 8:47 pm
>Hello again,
>Trying to figure out how much copper pipe, what diameter and at what flow
>rate to use geothermal to cool water. Anyone here maybe help with a formula
>or walk me through the thought process? Really looking for a formula I can
>do what if scenarios with.
>Here are some numbers to get things started but I'm not even sure I know the
>right questions to ask. Input temp of water is 65 degrees F, underground
>temp is 55 degrees F. For the sake of the question lets assume the input
>temp is constant, the water supply is unlimited and ground is clay with no
>obstructions.
>If you wanted an output flow rate of 5,000 GPH with output temp at or near
>ground temp (so minus 10 F of what goes in), how much pipe would you need,
>what diameter and how did you come up with that?
>Thanks for any assistance.
>=Ben
>PS: Please don't flame me for being in wrong group, there are many
>alternative power posts here but if you have a suggested group for
>geothermal please send.
See this also
http://www.gogeothermal.ca/faq.html
Posted by Ben on October 30, 2007, 7:24 pm
[insert]
Thanks John, was losing hope I'd get a reply there =)
=Ben
>>Hello again,
>>
>>Trying to figure out how much copper pipe, what diameter and at what flow
>>rate to use geothermal to cool water. Anyone here maybe help with a
>>formula
>>or walk me through the thought process? Really looking for a formula I
>>can
>>do what if scenarios with.
>>
>>Here are some numbers to get things started but I'm not even sure I know
>>the
>>right questions to ask. Input temp of water is 65 degrees F, underground
>>temp is 55 degrees F. For the sake of the question lets assume the input
>>temp is constant, the water supply is unlimited and ground is clay with no
>>obstructions.
>>
>>If you wanted an output flow rate of 5,000 GPH with output temp at or near
>>ground temp (so minus 10 F of what goes in), how much pipe would you need,
>>what diameter and how did you come up with that?
>>
>>Thanks for any assistance.
>>
>>=Ben
>>
>>PS: Please don't flame me for being in wrong group, there are many
>>alternative power posts here but if you have a suggested group for
>>geothermal please send.
>>
>>
>>
> See this also
> http://www.gogeothermal.ca/faq.html
>Trying to figure out how much copper pipe, what diameter and at what flow
>rate to use geothermal to cool water. Anyone here maybe help with a formula
>or walk me through the thought process? Really looking for a formula I can
>do what if scenarios with.
>Here are some numbers to get things started but I'm not even sure I know the
>right questions to ask. Input temp of water is 65 degrees F, underground
>temp is 55 degrees F. For the sake of the question lets assume the input
>temp is constant, the water supply is unlimited and ground is clay with no
>obstructions.
>If you wanted an output flow rate of 5,000 GPH with output temp at or near
>ground temp (so minus 10 F of what goes in), how much pipe would you need,
>what diameter and how did you come up with that?
>Thanks for any assistance.
>=Ben
>PS: Please don't flame me for being in wrong group, there are many
>alternative power posts here but if you have a suggested group for
>geothermal please send.