answer this question for me.....

[BlueTJCO]

Originally Posted by RubHer Yellow Ducky

The metal shelving will heat faster, maintain the heat and radiate it back into the room more then the wood shelves will. Metal itself in not an insulater whereas wood is...

So then, will the overall room temp be affected by what type of shelves we are using? Or will overall temp remain the same as it's the computers heating the room, not the shelves?

[mdoyle]

This is a classic heat load / enclosure situation and it's the very same thing you'd get to do if you were a drives & controls engineer (all damn day).

In short, the size of the enclosure and the heat load inside are your main considerations. While the material inside "may" serve to better distribute the heat within the enclosure, that effect is minimal.

The only difference comes when the device has a heavy localized thermal load and the shelf were somehow acting as a sink. For that to be the case you'd need unobstructed physical contact between the device and metal shelf with a thermally conductive compound (like thermal grease).

Just sitting on the shelf, isn't a factor.

Here's a handy online calculator if you know the total watts in usage:
http://www.thermal-edge.com/calculator/

[RubHer Yellow Ducky]

Originally Posted by Mooncricket[COLOR=red

]So then, will the overall room temp be affected by what type of shelves we are using?[/color] Or will overall temp remain the same as it's the computers heating the room, not the shelves?

excluding tight finite math...the overall room temp will remain the same...

BUT

by using wood shelves the temp of the CLOSE area right around the conputers will be slightly cooler...

NOW

vinyl coated wire shelves will allow for better air circulation and will be the coolest right around the computers...

BUT

by using solid metal shelvers you will be submitting the computers to a higher heat therefore if they pass you can feel more secure about them...

[DRTYFN]

Originally Posted by Mooncricket

Or will overall temp remain the same as it's the computers heating the room, not the shelves?

Ding ding ding.

[Agriv8r]

who cares...iffin you get hot, turn on the ac....iffin you get cold, turn it off.....

[BlueTJCO]

Originally Posted by Agriv8r

who cares...iffin you get hot, turn on the ac....iffin you get cold, turn it off.....

"It is a closed environment, with no air conditioning, and no outside air source, just a fan to circulate the air."

[ZigsRig]

just get your self on of these...

[BlueTJCO]

Originally Posted by DRTYFN

Ding ding ding.

well no **** old man... I was trying to figure out if the shelving themselves will retain and produce more heat per the material that is used.......

[Agriv8r]

Originally Posted by Mooncricket

well no **** old man... I was trying to figure out if the shelving themselves will retain and produce more heat per the material that is used.......

unless the material being used has the ability to produce heat by itself, how could it produce more heat....heat a piece of metal to 100 degrees and you get 100 degrees...heat a piece of wood and you get fire ..the shelf composition does not matter.....

[BKLYNH2]

this thread should cease before we convince the world we are total idiots.

[NJ H2]

One would think that wood would be worse than wire except if the wire was wire with no wood. The truth is that all wood would be worse than wire wouldn't you aggree?

[BlueTJCO]

Originally Posted by NJ H2

One would think that wood would be worse than wire except if the wire was wire with no wood. The truth is that all wood would be worse than wire wouldn't you aggree?

They are very nice and strong metal shelves, with a wood base. More of a particle board but about 3 inches thick that the computers sit on instead of sitting directly on the metal.

The metal shelves were getting hot to even brush up against. Now we just hope the wood doesn't warp too much over time.

[KenP]

Originally Posted by BKLYNH2

this thread should cease before we convince the world we are total idiots.

Where's that Gold Bond thread???

[BlueTJCO]

Originally Posted by Agriv8r

unless the material being used has the ability to produce heat by itself, how could it produce more heat....heat a piece of metal to 100 degrees and you get 100 degrees...heat a piece of wood and you get fire ..the shelf composition does not matter.....

This was well understood many posts ago.......

The original question was asked because half of our burn room has "wooden shelving" now opposed to the metal racks we were using. The wood shelving being used seems to be cooling the room down...we have been monitoring the room temp and it is cooler, with the same amount of computers on burn.........

The only thing that has changed is the conversion to the other shelves.

[DRTYFN]

Originally Posted by Mooncricket

well no **** old man... I was trying to figure out if the shelving themselves will retain and produce more heat per the material that is used.......

WhyTF are you worried about the retention of heat in the shelves??? And how would you imagine that a shelf could possibly produce heat?

[DennisAJC]

Take out a few ceiling panels. You'll notice a huge difference depending how low your drop ceiling is. Too bad you can't feed a ventilation in there. Summer will be hell.