heat dissipation

[R1976]

Someone has given me a heat load value of their servers in a comms room. If it is a product of I x V=P then how much of this power value will be dissipated as heat, someone suggested a third?

Any ideas?

[olddog]

..........how much of this power value will be dissipated as heat, someone suggested a third...........

Nah, all of it ( give or take an issue with power factor & these days thats probably near enough 1 so it doesnt matter )

'n dont overlook solar gain ( easy to do at this time of year :cool: )

[chemi-cool]

Servers rooms are subject to change.

I did only one but before I've finished, they almost doubled the load with more servers.

Make sure to state that your quote is for a certain date.

Add 20 % for extra hot days.

[Dr. Downflow]

I concur with OldDog. Mind you I guess I would 'cos I'm a pretty old dog myself!

[multisync]

Nah, all of it ( give or take an issue with power factor & these days thats probably near enough 1 so it doesnt matter )

'n dont overlook solar gain ( easy to do at this time of year :cool: )

Do they ever bother to factor solar gain in Ireland?

[VRVIII]

Servers rooms are subject to change.

I did only one but before I've finished, they almost doubled the load with more servers.

Make sure to state that your quote is for a certain date.

Add 20 % for extra hot days.
Also check ac manufactures specifications/tech data for capacity drop correction factors. i.e. pipe run length, low humidity application etc.