Coolcentrics liquicool rear door heat exchangers rdhx can reduce total energy consumption in excess of 60% and decrease white space by in excess of 50% when compared to conventional pac crac units. Counter flow heat exchangers are the most efficient of the three types. Rear door heat exchangers this planning guide contains information for preparing your location to facilitate the use of ibm rear door heat exchangers. Plate heat exchanger installation and operation manual please visit. Server rack rear door heat exchanger and the new ashrae. The cyberrack active rear door is a heat exchanger door with ec fans for installing on the rear door of server racks. Coolcentric rdhx reduces cooling energy consumption up to 90%. Overview the ibm rear door heat exchanger rdhx116495x provides an extremely. The server rack door is swapped for the cyberrack active rear door, which transforms. Coolcentrics liquicool rear door heat exchangers rdhx can reduce total energy consumption in excess of 60% and decrease white. However, the term is commonly used to equipment in which two process streams exchange heat with each other. Supply and return water hoses not included with this product deliver conditioned water to the heat exchanger in the door and.
It can replace the traditional approach to data centre. Our rear door heat exchangers rdhx, used in combination with our cooling distribution units, provide the most energy and spaceefficient, highdensity server rack cooling on the market, as tested by silicon valley leadership group svlg who found that this system used just 20% of energy compared to conventional closecontrol air conditioning unit systems. The hot exhaust air produced by the active equipment then passes over a heat exchanger matrix either by its own velocity or pulled through via ec centrifugal fans mounted within the door. If the heat exchanger is located at the inlet or discharge of a blower with a pulsating flow, such as a roots type rotary lobe blower, the heat exchanger must be protected from the pulsation by a chambered. Pdf experimental characterization of the rear door fans and. It is designed to increase equipment density in data centers, and helps reduce the need for inefficient. They are referred to as rear door heat exchanges rdhe, and ideal for high density computing environments that utilise blade or high performance clusters hpc. Alfa laval plate technology 5 working principle the basic plate heat exchanger consists of a series of thin, corrugated plates that are gasketed or welded together or any combination of these depending on the liquids passing through and on whether it is practical to be able to subsequently separate the plates, for whatever reason. The server rack door is swapped for the cyberrack active rear door, which transforms the rack into a cooled server rack that no longer discharges any heat load in the data center.
In dealing with the heat load closer to the source, the onrak is highly ef. Plate heat exchanger installation and operation manual. Our rear door heat exchangers rdhx, used in combination with our cooling distribution units, provide the most energy and spaceefficient, highdensity server rack cooling on the market, as tested by. Click here for rear door heat exchanger enclosure compatibility chart.
The coldlogik high density cooling rear door heat exchanger deals with the heat generation immediately at source, therefore 100% of the delta t can be removed, removing the strain on an otherwise overloaded airconditioning system and providing optimum energy efficiency. Rear door heat exchanger planning guide ibm downloads. Cn102282919a rear door heat exchanger transition frame. The coldlogik cl20 rear of cabinet cooler boasts the most. This also increases the air resistance in the heat exchanger. Designed for and used by the worlds preeminent enterprise data center and super computer owners and operators, the chilleddoor allows for ondemand cooling on a per rack, row or room level. Higher temperatures may be reached with special gasket and adhesive materials. The rear door heat exchanger is a watercooled door that is mounted on the rear of an ibm netbay42 enterprise rack to cool the air that is heated and exhausted by devices inside.
Servercool is a leading liquid cooling solution used in. In addition to cooling with passive heat exchangers, similar results can be achieved with fanassisted rear door heat exchangers and refrigerantcooled rear door exchangers. A method for controlling operation of a heat exchanger system comprises providing a heat exchanger system mountable to a rear door of a rack mounted computer system, circulating a heat transport. The total heat load of the cabinet is controllable remotely and a rear door heat exchanger is attached with controllable water flow rate. The results of the competition were presented at the svlgs data center energy summit in santa clara, ca on june 26, 2008. The term heat exchanger applies to all equipment used to transfer heat between two streams. R sekulib university of kentucky introduction a heat exchanger is a device that is used for transfer of thermal energy enthalpy between two or more. Heat exchanger performance learn about the heat exchanger performance of the rear door heat exchanger. Benefi ts of the watercooled passive rear door heat exchanger the passive rear door heat. The coolcentric rear door heat exchanger rdhx the worlds most energy efficient and spacesaving cooling solutions for data centers the coolcentric rear door heat exchanger rdhx is a passive liquid cooled heat exchanger that replaces standard rear doors on it enclosures. Experimental failure analysis of a rear door heat exchanger. The ibm rear door heat exchanger is an option for the ibm pureflex system 42u rack 795394x that can remove up to 30,000 watts of heat per hour using chilled water.
The motivair chilleddoor rack cooling system is an active rear door heat exchanger that is mounted directly to the back of any standard server rack. Water specifications for the secondary cooling loop. Portable document format pdf and includes the ibm documentation browser to help you find information quickly. Our active rear door heat exchangers adhx, used in combination with our cooling distribution units, provide the most energy and spaceefficient, highdensity server rack cooling on the market, as tested by silicon valley leadership group svlg who found that this system used just 20% of energy compared to conventional closecontrol air conditioning unit. Gasketed plate heat exchangers hxxxliquid gasketed plate heat exchangers are particularly suitable for large fl ows and high cooling capacities. Easily assimilates into existing data center infrastructure. They are referred to as rear door heat exchanges rdhe. Pdf experimental characterization of the rear door fans. If the heat exchanger is located at the inlet or discharge of a blower with a pulsating flow, such as a roots type rotary lobe blower, the heat exchanger must be protected from the pulsation by a chambered silencer.
These models allow users to deploy passive, liquid cooling rdhx solutions on a broader range of enclosures that are being used in the consolidation and scaleout of todays sustainable. A liquid twophase fluid heat exchanger is referred to as a compact heat exchanger if the surface area density on any one fluid side is above about 400 m2m 3 122 ft2ft3. As it infrastructure scales, so does power consumption, resulting in increased operating expenses, cooling requirement and reduce space availability for future expansion. Improving data center efficiency with rack or row cooling devices. Provides up to 35kw of cooling passive design no fans, moving parts or electrical connections 100% sensible cooling no condensate installs in minutes no rearrangement of enclosures required allows 5x the compute power. Apr 19, 2005 the ibm rear door heat exchanger is a effective way to assist your ac system to keep you datacenter cool. Rear door heat exchanger v2 increase equipment density while saving on energy costs the rear door heat exchanger v2 delivers an industryleading cooling system that uses chilled water to provide cooling for individual server cabinets. Rear door cooling solutions rear door cabinet cooling or back of rack systems are becoming the more favourable choice for data centre cooling. Rear door heat exchanger a method for datacenter thermal management solution details yreplace an existing rear door with a heat exchanger ythe footprint increase is about 5. The normal maximum operating temperature for a plate heat exchanger is approximately 120 degrees celsius. Heat exchanger specifications provide detailed information for your heat exchanger, including dimensions, weight, air source, water source, water pressure and water volume. Rear door heat exchangers standard rdhx and low density rdhxld replace standard rear doors on it rack enclosures, and the sidecar is an inrow heat exchanger.
Reardoor, passive cooling devices have higher heatremoval. How it works ambient air is pulled into the cabinet via the active equipment fans. Active rear door heat exchanger adhx 356b 35kw servercooltm units key system features top performance and reliability at your fingertips. The rear door heat exchanger is a watercooled device that mounts on the rear of the ibm netbay42 enterprise rack to cool the air that is heated and exhausted by devices inside the rack. Chilleddoor rack cooling system motivair cooling solutions.
For high power losses, the probability increases that the knurr dcd active is necessary to compensate for the increased pressure difference. Coldlogik rear door heat exchanger solutions workspace. The heat exchanger is a watercooled door that is mounted on the rear of a lenovo. Coldlogik rear of cabinet cooling solution usystems. The term heat exchanger applies to all equipment used to transfer heat between. Rear door heat exchanger heat exchanger or chilled building water supply. Lift handle lift handle lift handle airpurging tool option which can be purchased. The rear door heat exchanger v2 delivers an industryleading cooling system that uses chilled water to provide cooling for individual server cabinets. Us7548170b1 rear door heat exchanger instrumentation for. A method for controlling operation of a heat exchanger system comprises providing a heat exchanger system mountable to a rear door of a rack mounted computer system, circulating a heat transport medium through the heat exchanger system, detecting leaks in the heat exchanger system by comparing a first flow rate in an inflow line to a second flow rate in a return flow line, emitting a leakage. Rear door heat exchangers as a cost eff ective alternative to crah air cooling page 3 introduction. The coldlogik cl20 rear cooler was the first intelligent rear door heat exchanger rdhx cooling solution.
The coldlogik high density cooling rear door heat exchanger deals with the heat generation immediately at source, therefore 100% of the delta t can be removed, removing the strain on an otherwise. Dissimilar dimensions of equipment racks and cooling doors are accommodated by a transition frame. In this paper, emphasis is laid on the analytical determination of the optimum heat load after calculating. The hot exhaust air produced by the active equipment then passes over a heat exchanger matrix either by its own velocity. Experimental characterization of the rear door fans and heat exchanger of a fullyenclosed, hybridcooled server cabinet conference paper pdf available march 2014 with 115 reads how we. Alfa laval plate technology 5 working principle the basic plate heat exchanger consists of a series of thin, corrugated plates that are gasketed or welded together or any combination of these depending. Request pdf server rack rear door heat exchanger and the new ashrae recommended environmental guidelines the patented 1 rear door heat.
Set the new heat exchanger on the base and reassemble the rear. Remove the 2 screws securing the rear legs of the heat exchanger to the stops on the base panel and remove the old heat exchanger. The rdhx is a passive heat exchanger that reduces data center energy consumption and can reduce data center cooling costs up to 90 percent by indoor cooling units. Data center rack level cooling utilizing watercooled. The coolcentric rear door heat exchanger rdhx is the most efficient, flexible and cost effective cooling solutions for todays sustainable data centres. Provides up to 35kw of cooling passive design no fans, moving parts or electrical connections 100% sensible. Rear door heat exchanger, an open looped cooling technique is one of the solutions for such scenarios. Rear door heat exchanger transition frame 20081020. Jul 10, 2008 ibms rear door heat exchanger, licensed and installed by vette, went headtohead with leading competitor liquid cooling products in a chilloff competition sponsored by the silicon valley leadership group svlg. The coldlogik cl20 rear of cabinet cooler boasts the most energy efficient low to high density data centre cooling solution available. The stack of heat transfer plates and gaskets is clamped. It removes heat from the rack before in enters the room, allowing your ac unit to handle the increasingly dense system deployment your organization requires to meet its growing computing needs. Rear door heat exchanger v2 increase equipment density while saving on energy costs the rear door heat exchanger v2 delivers an industryleading cooling system that uses chilled water to provide.
The coolcentric family of heat exchangers comprises passive, liquid cooled heat exchangers. Lift handle lift handle lift handle airpurging tool option which can be purchased from ibm documentation package rear door heat exchanger asembly hinge kit lower air baffle upper air baffle rear door support bracket serial number. Planning for the installation of rear door heat exchangers. Jun 21, 2010 coolcentric has released two models to its liquicool reardoor heat exchanger rdhx product line. The ibm rear door heat exchanger for the idataplex rack is a watercooled door that is mounted on the rear of the idataplex rack to eliminate the heat exhaust that is produced by the devices in the rack. The onrak is a resilient rear door heat exchanger, designed to manage high discharge temperatures directly from the server into the aisle space. Pdf transient thermal performance of rear door heat exchanger. Data center rack cooling with reardoor heat exchanger. The rear door heat exchanger is a watercooled door that is mounted on the rear of an ibm netbay42 enterprise rack to cool the air that is heated and exhausted by devices inside the rack. A transition frame system integrates a liquid cooling door with associated computer equipment racks.
Planning for the installation of a rear door heat exchanger. Rear door heat exchanger rdhx email this page print this page. In contrast to the parallel flow heat exchanger, the counter flow heat exchanger can have the hottest coldfluid temperature greater than the coldest hotfluid temperatue. Liquicool rear door heat exchanger rear door heat exchanger rdhx advantages. The patented 1 rear door heat exchanger mounted to the rear of it equipment racks was announced in april, 2005 by ibm and has shown improvements in data center energy efficiency and reducing hot. The predictable and scalable data center liquid cooling solution can be built on a pay as you grow basis, eliminating the upfront costs of building a complete aircooled system on. The rdhx employs a speciallydesigned fin and tube coil.
The heat exchanger must be isolated from system vibrations using flexible piping connections and isolation pads on the mounting feet. The ibm rear door heat exchanger rdhx116495x provides an extremely efficient option to cool the air exiting the ibm pureflex system 42u rack 795394x. This can reduce both air conditioning capacity needs and hot spot problems. In dealing with the heat load closer to the source, the. Installation of the rear door heat exchanger v2 type 1756 is your responsibility and is not provided as part of the product purchase.
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