Re: cooling systems

2003-11-06 Thread Christopher X. Candreva
On Thu, 6 Nov 2003, Peter Galbavy wrote: > You "foreigners" are scary. As a UK resident, born in Oz many many years > ago, I consider -10C to be very very cold. Uhm, 9/5 * -10 +32 . . . 14 degrees ? Peshaw. As long as it's over 0 I'm OK. =

Re: cooling systems

2003-11-06 Thread Michael Painter
- Original Message - From: "Chris Lewis" <[EMAIL PROTECTED]> Sent: Thursday, November 06, 2003 8:43 AM Subject: Re: cooling systems > Peter Galbavy wrote: > > > You "foreigners" are scary. As a UK resident, born in Oz many many years > &g

Re: cooling systems

2003-11-06 Thread Chris Lewis
Peter Galbavy wrote: You "foreigners" are scary. As a UK resident, born in Oz many many years ago, I consider -10C to be very very cold. You know it's cold when you have to deal with diesel fuel in chunk form by shovel. (Well, actually, with a fork. It solidifies into a rather waxy/oozy gunk.

Re: cooling systems

2003-11-06 Thread Andrew Kerr
For those who have never visited Fairbanks, there is a phenomena observed at -15C and lower known as "square tire". The rubber in tires of parked vehicles will become stiff and freeze into position, making the vehicle impossible to move without destroying the tires. To the best of my knowled

Re: cooling systems

2003-11-06 Thread Peter Galbavy
Chris Lewis wrote: > More intriguing is what has to be done at high arctic places (like > little Ellesmere island, the northernmost mine in the world). Most of > the vehicles are Toyota diesel pickups (winter weight fuel, you > betcha!). They never shut the engines down. Except when they're > i

Re: cooling systems

2003-11-05 Thread Chris Lewis
Eric Kuhnke wrote: For those who have never visited Fairbanks, there is a phenomena observed at -15C and lower known as "square tire". The rubber in tires of parked vehicles will become stiff and freeze into position, making the vehicle impossible to move without destroying the tires. In Otta

RE: cooling systems

2003-11-05 Thread Deepak Jain
> > > > For those who have never visited Fairbanks, there is a phenomena > > > observed at -15C and lower known as "square tire". The rubber > in tires > > > of parked vehicles will become stiff and freeze into position, making > > > the vehicle impossible to move without destroying the tires. > >

Re: cooling systems

2003-11-05 Thread Valdis . Kletnieks
On Wed, 05 Nov 2003 12:42:16 PST, Eric Kuhnke <[EMAIL PROTECTED]> said: > For those who have never visited Fairbanks, there is a phenomena observed > at -15C and lower known as "square tire". The rubber in tires of parked > vehicles will become stiff and freeze into position, making the vehicl

Re: cooling systems

2003-11-05 Thread W.D. McKinney
On Wed, 2003-11-05 at 13:31, Joe Abley wrote: > On 5 Nov 2003, at 15:42, Eric Kuhnke wrote: > > > For those who have never visited Fairbanks, there is a phenomena > > observed at -15C and lower known as "square tire". The rubber in tires > > of parked vehicles will become stiff and freeze into

Re: cooling systems

2003-11-05 Thread Joe Abley
On 5 Nov 2003, at 15:42, Eric Kuhnke wrote: For those who have never visited Fairbanks, there is a phenomena observed at -15C and lower known as "square tire". The rubber in tires of parked vehicles will become stiff and freeze into position, making the vehicle impossible to move without dest

Re: cooling systems

2003-11-05 Thread Eric Kuhnke
The Arctic Region Supercomputing Centre in Fairbanks, Alaska would be a good candidate for this... * Yukon -- 272-processor CRAY T3E * Chilkoot -- 32-processor CRAY SV1ex *

Re: cooling systems

2003-11-05 Thread Christopher X. Candreva
On Wed, 5 Nov 2003, Mike Tancsa wrote: > costs, not to mention be a little more environmentally friendly. We were > thinking we could circulate the air up to the roof and cool it there inside > some aluminum ducts and then bring it back down. We dont want to just > bring in cold air as it is qu

RE: cooling systems

2003-11-05 Thread Robert A. Hayden
2003, Jeffrey Paul wrote: > > > > -Original Message- > > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On > > Behalf Of Robert A. Hayden > > Sent: Wed, 2003-11-05 12:50 > > To: Joe Abley > > Cc: Neil J. McRae; Mike Tancsa; Robert E. Seastrom; [EM

Re: cooling systems

2003-11-05 Thread Robert M. Enger
27;t get condensation in the downstream ducting (a real pain in the GeorgeW, potentially leading to microbial growth, etc) Good luck Mr. Phelps. - Original Message - From: "Mike Tancsa" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Wednesday, November 05, 2

Re: cooling systems

2003-11-05 Thread Robert A. Hayden
I've seen some designs that actually use water as the transport and many-finned radiators at each end. Radiator transfer heat into cold water inside which is pumped up a radiator in the sub-zero temps on the roof and exchanged and then looped back. Same basic principle as a traditional reside

Re: cooling systems

2003-11-05 Thread Joe Abley
On 5 Nov 2003, at 11:22, Neil J. McRae wrote: google search for "air to air heat exchanger" - there are many companies that make products that do exactly what you want. I'd be interested to see if these actually save any money. I'd guess that the cost of moving the air around is going to be a fa

Re: cooling systems

2003-11-05 Thread Neil J. McRae
> google search for "air to air heat exchanger" - there are many > companies that make products that do exactly what you want. I'd be interested to see if these actually save any money. I'd guess that the cost of moving the air around is going to be a factor.

Re: cooling systems

2003-11-05 Thread Krzysztof Adamski
On Wed, 5 Nov 2003, Mike Tancsa wrote: > > Faced with the prospect once again of significantly higher energy prices > coming to our region, we want to start to look at better and more efficient > ways to cool our colocation facility. Right now we have several ton of > traditional air conditionin

Re: cooling systems

2003-11-05 Thread Robert E. Seastrom
google search for "air to air heat exchanger" - there are many companies that make products that do exactly what you want. ---rob Mike Tancsa <[EMAIL PROTECTED]> writes: > Faced with the prospect once again of significantly higher energy > prices coming

cooling systems

2003-11-05 Thread Mike Tancsa
Faced with the prospect once again of significantly higher energy prices coming to our region, we want to start to look at better and more efficient ways to cool our colocation facility. Right now we have several ton of traditional air conditioning units sucking up electricity like its free.