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Topic: .25 BTC BOUNTY for the best answer - page 2. (Read 13574 times)

full member
Activity: 188
Merit: 100
January 04, 2014, 10:21:38 AM
#48
Lets hop back on topic.....

OP, Can you tell us what the square footage of this datacenter is planned to be and also let us know what kind of budget you are looking to work with....

Woodser
sr. member
Activity: 406
Merit: 250
January 02, 2014, 08:34:46 PM
#47
Also build a datacenter in a cold country like north of Canada, Iceland, Norway...and you won't have to cool it, just use the cold air from around you. Can save a lot, if you have that option.
full member
Activity: 188
Merit: 100
January 02, 2014, 10:34:21 AM
#46
Thats why theres inline duct fans inside the duct.

I guess I missed that during the video....
legendary
Activity: 1204
Merit: 1002
Gresham's Lawyer
January 02, 2014, 10:11:51 AM
#45
On a related note:
http://www.gfxtechnology.com/
full member
Activity: 126
Merit: 100
CAUTION: Angry Man with Attitude.
January 01, 2014, 09:09:45 PM
#44
We have a lot of the "silliest" answers here, from people who have no datacenter or AC experience. You put up a bounty, you get stupid spammers and beggars.

Before qualifying any answer as silly or stupid, I think we need to know some additional considerations such as the amount of money he is willing to spend.

If we take into account the kind of unit he is considering to buy, that sounds more like a kind of garage project, in the line of DIY and low cost solutions.

In the company where I work, we recently did an investment in a cooling solution. The company spent a bit more than 50,000 euros (about 80,000 USD) in a solution based on in-row equipment from APC, like the one linked below. This was a very small datacenter with a power consumption much lower than 40,000 W

http://www.apc.com/products/family/index.cfm?id=379

So, if someone is willing to spend an amount in the range of 3000~4000 USD, maybe the silly solutions are those intended for real datacenters. May be, if he had a budget in the range of 100,000 USD he would be addressing his doubts to a professional cooling consultant. May be he would be ordering and paying a whole study and a project instead of being offering 0.25 BTC (about 180 USD) looking for ideas into a community of unknown people.

This.

I am looking for low cost, DIY solutions.  This will be built out in space not originally intended for Crypto mining.  I want to keep expenses to a minimum.....no need to spend all the profit on cooling the damn things. 

If you want, I suggest using a dehumidifier to keep out moisture and look at this expert on youtube showing his mining rig shelf and how he sets up cooling. http://youtu.be/G5f_e4P6gMA

My video is a good example though, because the duct is sucking out the hot air as the fans cover the front portion of the shelf .

I watched the video....Is there anything sucking the air into the duct?  To me I only saw the large box fans on the front.  It looks like to me without proper pressurization of that air it would be hard to make it travel through that ducting.

Thats why theres inline duct fans inside the duct.
full member
Activity: 188
Merit: 100
January 01, 2014, 03:52:50 PM
#43
We have a lot of the "silliest" answers here, from people who have no datacenter or AC experience. You put up a bounty, you get stupid spammers and beggars.

Before qualifying any answer as silly or stupid, I think we need to know some additional considerations such as the amount of money he is willing to spend.

If we take into account the kind of unit he is considering to buy, that sounds more like a kind of garage project, in the line of DIY and low cost solutions.

In the company where I work, we recently did an investment in a cooling solution. The company spent a bit more than 50,000 euros (about 80,000 USD) in a solution based on in-row equipment from APC, like the one linked below. This was a very small datacenter with a power consumption much lower than 40,000 W

http://www.apc.com/products/family/index.cfm?id=379

So, if someone is willing to spend an amount in the range of 3000~4000 USD, maybe the silly solutions are those intended for real datacenters. May be, if he had a budget in the range of 100,000 USD he would be addressing his doubts to a professional cooling consultant. May be he would be ordering and paying a whole study and a project instead of being offering 0.25 BTC (about 180 USD) looking for ideas into a community of unknown people.

This.

I am looking for low cost, DIY solutions.  This will be built out in space not originally intended for Crypto mining.  I want to keep expenses to a minimum.....no need to spend all the profit on cooling the damn things. 

If you want, I suggest using a dehumidifier to keep out moisture and look at this expert on youtube showing his mining rig shelf and how he sets up cooling. http://youtu.be/G5f_e4P6gMA

My video is a good example though, because the duct is sucking out the hot air as the fans cover the front portion of the shelf .

I watched the video....Is there anything sucking the air into the duct?  To me I only saw the large box fans on the front.  It looks like to me without proper pressurization of that air it would be hard to make it travel through that ducting.
full member
Activity: 126
Merit: 100
CAUTION: Angry Man with Attitude.
January 01, 2014, 06:51:23 AM
#42
We have a lot of the "silliest" answers here, from people who have no datacenter or AC experience. You put up a bounty, you get stupid spammers and beggars.

Before qualifying any answer as silly or stupid, I think we need to know some additional considerations such as the amount of money he is willing to spend.

If we take into account the kind of unit he is considering to buy, that sounds more like a kind of garage project, in the line of DIY and low cost solutions.

In the company where I work, we recently did an investment in a cooling solution. The company spent a bit more than 50,000 euros (about 80,000 USD) in a solution based on in-row equipment from APC, like the one linked below. This was a very small datacenter with a power consumption much lower than 40,000 W

http://www.apc.com/products/family/index.cfm?id=379

So, if someone is willing to spend an amount in the range of 3000~4000 USD, maybe the silly solutions are those intended for real datacenters. May be, if he had a budget in the range of 100,000 USD he would be addressing his doubts to a professional cooling consultant. May be he would be ordering and paying a whole study and a project instead of being offering 0.25 BTC (about 180 USD) looking for ideas into a community of unknown people.

This.

I am looking for low cost, DIY solutions.  This will be built out in space not originally intended for Crypto mining.  I want to keep expenses to a minimum.....no need to spend all the profit on cooling the damn things. 

If you want, I suggest using a dehumidifier to keep out moisture and look at this expert on youtube showing his mining rig shelf and how he sets up cooling. http://youtu.be/G5f_e4P6gMA

My video is a good example though, because the duct is sucking out the hot air as the fans cover the front portion of the shelf .
full member
Activity: 126
Merit: 100
CAUTION: Angry Man with Attitude.
January 01, 2014, 06:49:15 AM
#41
But OP hasent told us the size of his rig, he doesnt need to spend a alot of money doing this you know?
really?
I am not sure of the BTU rating, but I will need to dissipate upwards of 40,000 watts.

Must of missed that thanks.
legendary
Activity: 1512
Merit: 1036
January 01, 2014, 06:05:35 AM
#40
But OP hasent told us the size of his rig, he doesnt need to spend a alot of money doing this you know?
really?
I am not sure of the BTU rating, but I will need to dissipate upwards of 40,000 watts.
member
Activity: 82
Merit: 10
January 01, 2014, 05:11:52 AM
#39
Freeze lot's of ice while energy costs are low(at night), than melt it with coolant while costs are high (daytime). Might save up to 20% of cooling costs.  Cry
full member
Activity: 126
Merit: 100
CAUTION: Angry Man with Attitude.
January 01, 2014, 04:14:00 AM
#38
We have a lot of the "silliest" answers here, from people who have no datacenter or AC experience. You put up a bounty, you get stupid spammers and beggars.

You basically have two choices:

- Traditional refrigerant air conditioning with a condensing outdoor unit,
- Evaporative "Swamp coolers", where facilities allow large outside berth for building flow-through, and the local weather is favorable.

*snip*


Evaporative cooling is measured a different way, in the temperature drop from intake air temp, with accompanying increased humidity. You can make 100F outside air into 75F inside air. However, you will need to look at the cubic feet per minute ratings of the systems to see what can keep up with your heat load. You may decide that 85F will be the maximum "output" temperature rise after air goes through your racks - for this much cooling, you will be looking at garage-door sized walls of fans from the outside and gallons of water per minute.

However, the evaporative cooling does have the advantage that you are putting in a massive outside air circulation system - the 75% of the day and year when outside air is below 75F, you will need nothing more than to run the fans.

Inside a closed air conditioned building, evaporative cooling may enhance efficiency a bit. AC removes humidity, to the point where the IDUs need to pump water out. You could add some humidity back to pre-cool the hot AC intake air (you can't humidify cold air AC output). The humidity would have to be strictly monitored to not go overboard or add more humidity than the AC can remove.

Whatever system is implemented, you need to direct airflow through your facility and systems, ideally in a typical contained hot/cool-aisle system:
*cut*

You could always try an evaporative system base on old technology, like a windcatcher
http://en.wikipedia.org/wiki/Windcatcher
Just get a mechanical engineer to do the required calculations


But OP hasent told us the size of his rig, he doesnt need to spend a alot of money doing this you know?
newbie
Activity: 40
Merit: 0
January 01, 2014, 03:54:30 AM
#37
We have a lot of the "silliest" answers here, from people who have no datacenter or AC experience. You put up a bounty, you get stupid spammers and beggars.

You basically have two choices:

- Traditional refrigerant air conditioning with a condensing outdoor unit,
- Evaporative "Swamp coolers", where facilities allow large outside berth for building flow-through, and the local weather is favorable.

*snip*


Evaporative cooling is measured a different way, in the temperature drop from intake air temp, with accompanying increased humidity. You can make 100F outside air into 75F inside air. However, you will need to look at the cubic feet per minute ratings of the systems to see what can keep up with your heat load. You may decide that 85F will be the maximum "output" temperature rise after air goes through your racks - for this much cooling, you will be looking at garage-door sized walls of fans from the outside and gallons of water per minute.

However, the evaporative cooling does have the advantage that you are putting in a massive outside air circulation system - the 75% of the day and year when outside air is below 75F, you will need nothing more than to run the fans.

Inside a closed air conditioned building, evaporative cooling may enhance efficiency a bit. AC removes humidity, to the point where the IDUs need to pump water out. You could add some humidity back to pre-cool the hot AC intake air (you can't humidify cold air AC output). The humidity would have to be strictly monitored to not go overboard or add more humidity than the AC can remove.

Whatever system is implemented, you need to direct airflow through your facility and systems, ideally in a typical contained hot/cool-aisle system:
*cut*

You could always try an evaporative system base on old technology, like a windcatcher
http://en.wikipedia.org/wiki/Windcatcher
Just get a mechanical engineer to do the required calculations
full member
Activity: 126
Merit: 100
CAUTION: Angry Man with Attitude.
December 31, 2013, 06:41:47 PM
#36
We have a lot of the "silliest" answers here, from people who have no datacenter or AC experience. You put up a bounty, you get stupid spammers and beggars.

Before qualifying any answer as silly or stupid, I think we need to know some additional considerations such as the amount of money he is willing to spend.

If we take into account the kind of unit he is considering to buy, that sounds more like a kind of garage project, in the line of DIY and low cost solutions.

In the company where I work, we recently did an investment in a cooling solution. The company spent a bit more than 50,000 euros (about 80,000 USD) in a solution based on in-row equipment from APC, like the one linked below. This was a very small datacenter with a power consumption much lower than 40,000 W

http://www.apc.com/products/family/index.cfm?id=379

So, if someone is willing to spend an amount in the range of 3000~4000 USD, maybe the silly solutions are those intended for real datacenters. May be, if he had a budget in the range of 100,000 USD he would be addressing his doubts to a professional cooling consultant. May be he would be ordering and paying a whole study and a project instead of being offering 0.25 BTC (about 180 USD) looking for ideas into a community of unknown people.

This.

I am looking for low cost, DIY solutions.  This will be built out in space not originally intended for Crypto mining.  I want to keep expenses to a minimum.....no need to spend all the profit on cooling the damn things. 

If you want, I suggest using a dehumidifier to keep out moisture and look at this expert on youtube showing his mining rig shelf and how he sets up cooling. http://youtu.be/G5f_e4P6gMA
full member
Activity: 126
Merit: 100
CAUTION: Angry Man with Attitude.
December 31, 2013, 06:20:38 PM
#35
I design and build or rather used to....

I dont want your bounty but will happily offer up my 2 pence worth.

Not a concept i would choose, cooling is more complex than that....

How many servers are we talking? what are the BTU Raiting etc.....

How will air "flow" work around the space, will each server get enough cooled air

Why not free cooling??? just high speed fans in a small space and extraction can be enough on small setups.

Its not as simple as your question makes it

I am not sure of the BTU rating, but I will need to dissipate upwards of 40,000 watts.

Air flow would be a bit tricky.  I was planning on an intake and exhaust fan to get rid of humidity.  

The summer here are brutally hot....can get up to 110 F.  high speed fans don't really cut it in those conditions, at least they haven't the last couple years.  

Are you in AZ or Cali? I believe you can rent cooled spaces.
sr. member
Activity: 406
Merit: 250
December 31, 2013, 06:02:20 PM
#34
Well I have a better option for you. Look at how big companies do it. They try to make it as efficient as possible. Microsoft doesn't even put a roof on their new facilities.
legendary
Activity: 1204
Merit: 1002
Gresham's Lawyer
December 31, 2013, 09:32:26 AM
#33
I would like to rig miners to my pool's water heater and make use of the heat to heat my pool to tropical temperatures.
This could save .25 BTC a day for each day I want to heat it.
If you have AC or a heat pump, there are already systems that can heat the pool with waste heat (or cool your house with your pool if you look at it the other way):
http://www.hotspotenergy.com/pool-heater/
Thanks for the link.
Yes, this is what I am looking at.
Solar panels provide electricity already for the home/office.
Running the chillers on the miner with the waste heat warming the swimming pool which serves as the evap.
Virtuous cycle mining.
legendary
Activity: 1512
Merit: 1036
December 31, 2013, 12:49:42 AM
#32
I would like to rig miners to my pool's water heater and make use of the heat to heat my pool to tropical temperatures.
This could save .25 BTC a day for each day I want to heat it.
If you have AC or a heat pump, there are already systems that can heat the pool with waste heat (or cool your house with your pool if you look at it the other way):
http://www.hotspotenergy.com/pool-heater/
legendary
Activity: 1204
Merit: 1002
Gresham's Lawyer
December 31, 2013, 12:19:55 AM
#31
I would like to rig miners to my pool's water heater and make use of the heat to heat my pool to tropical temperatures.
This could save .25 BTC a day for each day I want to heat it.
newbie
Activity: 38
Merit: 0
December 30, 2013, 09:52:13 PM
#30
I'm not in no way, of possession of the credentials to give the OP's the reply he wants, but I've once seen Liquid Nitrogen cooling solution, which was actually a small flat chamber with the liquid trapped inside, which was serving as a "floor" for us to step over. To keep it cool at the lowest cost I believe that a magnetic cooling system was set up (don't clearly remember the occasion).

 It was serving as cooling solution for chemical reactors though, not sure if such technology applies to this case.

A quick search on google points me to this on first link: http://en.wikipedia.org/wiki/Magnetic_refrigeration

Have no idea about the costs Cheesy

Happy new year

Edit: The Lab was located at University of Algarve in Portugal, department of Physics and Chemistry
https://www.ualg.pt/home/en
newbie
Activity: 6
Merit: 250
December 30, 2013, 02:39:43 PM
#30
We have a lot of the "silliest" answers here, from people who have no datacenter or AC experience. You put up a bounty, you get stupid spammers and beggars.

Before qualifying any answer as silly or stupid, I think we need to know some additional considerations such as the amount of money he is willing to spend.

If we take into account the kind of unit he is considering to buy, that sounds more like a kind of garage project, in the line of DIY and low cost solutions.

In the company where I work, we recently did an investment in a cooling solution. The company spent a bit more than 50,000 euros (about 80,000 USD) in a solution based on in-row equipment from APC, like the one linked below. This was a very small datacenter with a power consumption much lower than 40,000 W

http://www.apc.com/products/family/index.cfm?id=379

So, if someone is willing to spend an amount in the range of 3000~4000 USD, maybe the silly solutions are those intended for real datacenters. May be, if he had a budget in the range of 100,000 USD he would be addressing his doubts to a professional cooling consultant. May be he would be ordering and paying a whole study and a project instead of being offering 0.25 BTC (about 180 USD) looking for ideas into a community of unknown people.
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