Comments on: Hot aisle containment vs cold aisle containment http://www.cix.ie/2008/05/01/hot-aisle-containment-vs-cold-aisle-containment/ Cork's hyper energy efficient Professional Data Centre Mon, 03 Oct 2011 15:16:54 +0000 hourly 1 http://wordpress.org/?v=3.2.1 By: santy http://www.cix.ie/2008/05/01/hot-aisle-containment-vs-cold-aisle-containment/comment-page-1/#comment-1831 santy Sun, 21 Jun 2009 19:19:08 +0000 http://www.cix.ie/?p=73#comment-1831 Hot aisle/cold asile,hot asle containment or cold asile containment will all produce savings in power comsumption and provide optimum cool air supply to the product of your focus. Each of the above have their merits.But the product saftey in the event of outage and the recovery time for the room must be assesed before implementing any of the options mentioned. With respect to data centers the product or server is fed from ups power which is more costly than NC power, but provides power during outage. So if cold asile containment is your choice it is imperitive that all CRAC units(computer room air cooling) be supplied by ups because the temp rise in the room will be in seconds instead of minutes and so reduce your recation time and so place the room in a position of risk. the volume of cold air in a cold asile containment enviorment is ristricted to the area of the cold asile and the rest of the room is hot this is why you must assess the effect an outage will have on equipment and consider ups supply to CRAC units. This extra cost makes this less efficent than first seems. The hot asile option has the hot air contained and the room temp cold at optimum running temp for the product and so in the event of outage the recation time is much increased and places the product in a safe position. This option does not erquire ups supply,making this the most cost effective and risk free option. Hot aisle/cold asile,hot asle containment or cold asile containment will all produce savings in power comsumption and provide optimum cool air supply to the product of your focus. Each of the above have their merits.But the product saftey in the event of outage and the recovery time for the room must be assesed before implementing any of the options mentioned.
With respect to data centers the product or server is fed from ups power which is more costly than NC power, but provides power during outage. So if cold asile containment is your choice it is imperitive that all CRAC units(computer room air cooling) be supplied by ups because the temp rise in the room will be in seconds instead of minutes and so reduce your recation time and so place the room in a position of risk. the volume of cold air in a cold asile containment enviorment is ristricted to the area of the cold asile and the rest of the room is hot this is why you must assess the effect an outage will have on equipment and consider ups supply to CRAC units. This extra cost makes this less efficent than first seems.
The hot asile option has the hot air contained and the room temp cold at optimum running temp for the product and so in the event of outage the recation time is much increased and places the product in a safe position. This option does not erquire ups supply,making this the most cost effective and risk free option.

]]> By: lenny http://www.cix.ie/2008/05/01/hot-aisle-containment-vs-cold-aisle-containment/comment-page-1/#comment-1810 lenny Tue, 25 Nov 2008 14:39:52 +0000 http://www.cix.ie/?p=73#comment-1810 The effeceincy comes in two parts firstly the seperation of hot vs cold air secondly the close coupled cooling The second make a huge saving in fans speeds sizing etc, very similar to chilled beams in a normal building HVAC strategy. This is where containing the hot aisle works better than the cold. Keeping the cooling units as close to the load as possible can have of a 10x saving in fans sizing / speed / power requirements. Having the hot air from the back of the server directly into the cooling coil can double the capacity of any coil. The effeceincy comes in two parts
firstly the seperation of hot vs cold air
secondly the close coupled cooling
The second make a huge saving in fans speeds sizing etc, very similar to chilled beams in a normal building HVAC strategy.
This is where containing the hot aisle works better than the cold. Keeping the cooling units as close to the load as possible can have of a 10x saving in fans sizing / speed / power requirements. Having the hot air from the back of the server directly into the cooling coil can double the capacity of any coil.

]]> By: Jerry Sweeney http://www.cix.ie/2008/05/01/hot-aisle-containment-vs-cold-aisle-containment/comment-page-1/#comment-1770 Jerry Sweeney Sat, 30 Aug 2008 16:47:01 +0000 http://www.cix.ie/?p=73#comment-1770 Cold Aisle Containment is even more efficient! Cold Aisle Containment is even more efficient!

]]> By: ups guy http://www.cix.ie/2008/05/01/hot-aisle-containment-vs-cold-aisle-containment/comment-page-1/#comment-1721 ups guy Sat, 02 Aug 2008 22:01:49 +0000 http://www.cix.ie/?p=73#comment-1721 Over time Hotaisle Containment will pay for itself compared to cold aisle containment. You don't need nearly as much capital cooling equipment because the heat is so well contained/converted back to cool air. Over time Hotaisle Containment will pay for itself compared to cold aisle containment.

You don’t need nearly as much capital cooling equipment because the heat is so well contained/converted back to cool air.

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