Airflow Quesstion.. | Bitcointalksearch.org

Steamtyme

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Quote from: RichardBTC on October 03, 2017, 05:07:09 PM

Quote from: dwink on October 01, 2017, 06:44:28 PM

Quote from: RichardBTC on October 01, 2017, 09:47:40 AM

I know that gpu mining is most likely not on this level of heat but my two rigs are in my garage and i have a big steel fan blowing on them but the hot air coming out of the rigs is just being blown back onto the rigs, and then opening the windows creates dust.. Im not sure what i can do more besides getting an aircon.. Which is electricity intensive

Blowing ambient temperature air on to the heat producing rigs without any exhaust simply makes the ambient temperature hotter as time passes. You need an exhaust fan set up in the garage and move the rigs close / under the exhaust fan. That way the hot air that raises up from the rigs gets sucked out before mixing with the ambient air. A large fan with a high CFM will work wonders to maintaining the ambient temp. Don't worry about getting cold air into the room. Your garage is not an air locked chamber... there will be gaps through which air gets in. If it is indeed one of those stuffy zero ventilation garages, keep the window just barely open... like an inch or two. Dust is an issue only if you keep it full open... or if we're talking Interstellar level of dust winds

Thanks for your reply man! really appreciate it. I am going to go to my local tool store to get some pricing of a extractor fan and somehow incorporate it in my garage just to get that ambient warm air out. I think this would be the best bet because with it being a garage, it gets extremely hot in there without the miners running. I am also going to install a ceiling, which should also hopefully cool the area down.

You can honestly go to any store, like a walmart or homedepot, and find a window fan they mount directly inside the sliding window, they work just fine for bringing air in or exhausting air out. Does your garage have an attic space, if so you can set up a fan in the access there as well, one blowing in one exhausting out. When I had 3 s5's and an s4+ running in my garage simply having my fan blowing into the space and leaving my attic access open kept the ambient temperature low enough, but on 35C days I either ran both fans or just rested 1 or 2 of the miners. I did also place a filter on my window screen to help keep dust down.

https://www.walmart.ca/en/ip/bionaire-ultra-thin-window-fan/6000085562714?cmpid=sem_pla_google_en_none_6000085562714_100062012931728_4595&cmpid=sem_pla_google_en_none_868545256_45415463938_None_%2010002_None&gclid=CjwKCAjw6szOBRAFEiwAwzixBW9PUK0vdwlxmoqr33s8qIojVHwvkd5X4_hNImlq74_NNVglr1582xoCTNkQAvD_BwE

leowonderful

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Quote from: RichardBTC on October 03, 2017, 05:07:09 PM

Quote from: dwink on October 01, 2017, 06:44:28 PM

Quote from: RichardBTC on October 01, 2017, 09:47:40 AM

I know that gpu mining is most likely not on this level of heat but my two rigs are in my garage and i have a big steel fan blowing on them but the hot air coming out of the rigs is just being blown back onto the rigs, and then opening the windows creates dust.. Im not sure what i can do more besides getting an aircon.. Which is electricity intensive

Blowing ambient temperature air on to the heat producing rigs without any exhaust simply makes the ambient temperature hotter as time passes. You need an exhaust fan set up in the garage and move the rigs close / under the exhaust fan. That way the hot air that raises up from the rigs gets sucked out before mixing with the ambient air. A large fan with a high CFM will work wonders to maintaining the ambient temp. Don't worry about getting cold air into the room. Your garage is not an air locked chamber... there will be gaps through which air gets in. If it is indeed one of those stuffy zero ventilation garages, keep the window just barely open... like an inch or two. Dust is an issue only if you keep it full open... or if we're talking Interstellar level of dust winds

Thanks for your reply man! really appreciate it. I am going to go to my local tool store to get some pricing of a extractor fan and somehow incorporate it in my garage just to get that ambient warm air out. I think this would be the best bet because with it being a garage, it gets extremely hot in there without the miners running. I am also going to install a ceiling, which should also hopefully cool the area down.

I used to run my miners in my garage which got up to 100f ambient plus and with even a little bit of airflow my S5s (long time in minerland Grin

) would run, albeit a little hotter than i would like for them to run. Hell even cracking a window open worked for a few miners.

RichardBTC

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Quote from: dwink on October 01, 2017, 06:44:28 PM

Quote from: RichardBTC on October 01, 2017, 09:47:40 AM

I know that gpu mining is most likely not on this level of heat but my two rigs are in my garage and i have a big steel fan blowing on them but the hot air coming out of the rigs is just being blown back onto the rigs, and then opening the windows creates dust.. Im not sure what i can do more besides getting an aircon.. Which is electricity intensive

Blowing ambient temperature air on to the heat producing rigs without any exhaust simply makes the ambient temperature hotter as time passes. You need an exhaust fan set up in the garage and move the rigs close / under the exhaust fan. That way the hot air that raises up from the rigs gets sucked out before mixing with the ambient air. A large fan with a high CFM will work wonders to maintaining the ambient temp. Don't worry about getting cold air into the room. Your garage is not an air locked chamber... there will be gaps through which air gets in. If it is indeed one of those stuffy zero ventilation garages, keep the window just barely open... like an inch or two. Dust is an issue only if you keep it full open... or if we're talking Interstellar level of dust winds

Thanks for your reply man! really appreciate it. I am going to go to my local tool store to get some pricing of a extractor fan and somehow incorporate it in my garage just to get that ambient warm air out. I think this would be the best bet because with it being a garage, it gets extremely hot in there without the miners running. I am also going to install a ceiling, which should also hopefully cool the area down.

dwink

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Quote from: RichardBTC on October 01, 2017, 09:47:40 AM

I know that gpu mining is most likely not on this level of heat but my two rigs are in my garage and i have a big steel fan blowing on them but the hot air coming out of the rigs is just being blown back onto the rigs, and then opening the windows creates dust.. Im not sure what i can do more besides getting an aircon.. Which is electricity intensive

Blowing ambient temperature air on to the heat producing rigs without any exhaust simply makes the ambient temperature hotter as time passes. You need an exhaust fan set up in the garage and move the rigs close / under the exhaust fan. That way the hot air that raises up from the rigs gets sucked out before mixing with the ambient air. A large fan with a high CFM will work wonders to maintaining the ambient temp. Don't worry about getting cold air into the room. Your garage is not an air locked chamber... there will be gaps through which air gets in. If it is indeed one of those stuffy zero ventilation garages, keep the window just barely open... like an inch or two. Dust is an issue only if you keep it full open... or if we're talking Interstellar level of dust winds

RichardBTC

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Merit: 100

I know that gpu mining is most likely not on this level of heat but my two rigs are in my garage and i have a big steel fan blowing on them but the hot air coming out of the rigs is just being blown back onto the rigs, and then opening the windows creates dust.. Im not sure what i can do more besides getting an aircon.. Which is electricity intensive

miguelmorales85

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Quote from: BitcoinIntern on September 27, 2017, 05:05:04 PM

So I totally understand that Bitcoin miners needs proper airflow to keep themselves cool. So my question is what if the hot air is sucked out properly in a way that there is no heat on the exhaust side but on the intake side there is no cool air being provided and the miners are just taking air from surrounding with whatever is available. Is this possible? What will happen in this scenario?

Please do contribute your valuable comments everyone. Thanks.

As I said before, you need to focus in sucking the hot air out and not let the miners recycle this hot air.
You can use data-center air flow theory to design your mine facility or you can use a hot room/ cold room set up.

this can be achieved embedding the miner into a wall in which they will be in the middle of the separation between hot room and cold room.

All of this depends on the size of your mining facility. Share more information with us so we could help you and give you advise.

BitcoinIntern

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Quote from: Steamtyme on September 27, 2017, 05:16:09 PM

I'm a little confused... are you referring to having some sort of a heath exchanger to take the heat away immediately and use it somewhere more useful? Or do you mean using ducting/placement of miners to control where where your heat is being exhausted outside the space you are using to host your miners?

No matter what you are going to generate heat at the miner itself; but you definitely do not want that heat recirculating back to the miner intake.

I should have explained it a little better....Please refer to the below pictures of Secup's amazing bitcoin mining farm in Canada...one of the best I have seen

https://bitcointalk.org/index.php?topic=1498901.0;all

If you look at the pictures they have manufactured a hot aisle made out of dry wall where the heat gets exhausted out very nicely and in a powerful nature. However, I don't see any supply side of the cold air....This is what raised a question in my mind. Are they exhausting the air so well that they don't need the cold air intake at all? How is the cold air getting to the miners? Thanks.

fanatic26

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Your miners will vary in temperature based on the ambient intake temperature. What exactly are you asking?

Steamtyme

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I'm a little confused... are you referring to having some sort of a heath exchanger to take the heat away immediately and use it somewhere more useful? Or do you mean using ducting/placement of miners to control where where your heat is being exhausted outside the space you are using to host your miners?

No matter what you are going to generate heat at the miner itself; but you definitely do not want that heat recirculating back to the miner intake.

BitcoinIntern

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Activity: 210

Merit: 100

So I totally understand that Bitcoin miners needs proper airflow to keep themselves cool. So my question is what if the hot air is sucked out properly in a way that there is no heat on the exhaust side but on the intake side there is no cool air being provided and the miners are just taking air from surrounding with whatever is available. Is this possible? What will happen in this scenario?

Please do contribute your valuable comments everyone. Thanks.

Topic: Airflow Quesstion.. (Read 613 times)