Server room heat load problem.
Server room heat load problem.
(OP)
I have a server room of 100 m2 (1076 ft2).
The intention of IT is to install here servers with a total equipment load of 450 kW (1535464 Btu/hr). If I start to select Ac units for this room I can go for 4 units (3 duty/ 1 standby), but they take about 26,25 m2 of space , or if I take ( 2 duty/ 1 standby ) it takes 22,5 meters of space. This includes the maintenance area.
Looking at the left over room load I will get 450/ 75 = 6 kW/ meter2.
As this is a new building I am talking about, it is my opinion that this room is too small.
I have to admit I did not get a lay-out drawing that indicated where the servers should go.
But what is your opinion?
The intention of IT is to install here servers with a total equipment load of 450 kW (1535464 Btu/hr). If I start to select Ac units for this room I can go for 4 units (3 duty/ 1 standby), but they take about 26,25 m2 of space , or if I take ( 2 duty/ 1 standby ) it takes 22,5 meters of space. This includes the maintenance area.
Looking at the left over room load I will get 450/ 75 = 6 kW/ meter2.
As this is a new building I am talking about, it is my opinion that this room is too small.
I have to admit I did not get a lay-out drawing that indicated where the servers should go.
But what is your opinion?





RE: Server room heat load problem.
In-row cooling will manage this, but you will lose rack spaces.
Check out which options may work for you, rough out the plans and advise your client what they can realistically get in the room. IT folk are notoriously optimistic, as the don't understand the limitations of the cooling.
Coordinate with structural and electrical too: floor needs to carry all this weight, and electrical may have been planning whips underfloor. You probably don't need a RF here.
RE: Server room heat load problem.
It sounds like you're short on space (typical) and some of the XD cooling solutions from Liebert might help you out.
RE: Server room heat load problem.
RE: Server room heat load problem.
The Liebert unit in the space maintains humidity control and an ambient temperature of 72°F in the space.
The heat from the rack isn't seen within the room.
RE: Server room heat load problem.
Chris, we have liebert units now and will look into those.
Sspeare, Indeed the complete equipment load is only sensible, there are no people in the room. There has been a debate before about TCC=SCC in earlier topics where some would state that TCC could be fully SCC if no latent load was available. I would like to know your source or experience.
Walkes, have you got a source or a model of liebert unit that I could have a look at for this system?
RE: Server room heat load problem.
Secondly the level of redundancy, you indicate N+1 above - Tier 1 or 2. This is critical to your clients satisfaction level and intertwined closely with floor area. Something to discuss clearly; average hours of expected annual downtime is usually a well enough understood currency.
Re: Sensible heat capacity - is the only number to look at on the units.
Manufacturers of HD cooling - Liebert and APC are obvious - Rittal is a brand that is impressing in the US market, supposedly coming from Europe. Vette makes doors - early benchmarking found them a bit erratic in control but performance/efficiency was good.
RE: Server room heat load problem.
htt
The Liebert unit is a standard DS unit with an upflow configuration used to maintain humidity levels in the room.
RE: Server room heat load problem.