Cooling Efficiency

Smart Hot/Cold Corridor

As a result of virtualization technologies being deployed more and more in data centers, and in particular blade servers, the resultant huge increase in power loads is accelerating power consumption exponentially per M2/sq ft.
One significant consequence of increased power consumption is more heat dissipation per M2/sq ft and this heat dissipation can be as much as 60% to 70% of electrical power consumption. Another significant factor is that only 28% of cold air input is drawn from the front-face of servers.  The rest disappears into the ambient surroundings and mixes with hot air.   It is now generally recognized that traditional Cold aisle/Hot aisle configurations are inefficient and unable to handle current heat dissipation levels; current generation servers demand more cold air ambience and incorrect or inefficient air separation of both aisles results serious overheating of servers located in the top part of a rack – the temperature delta between the upper and lower level of a rack can be as much as 10.5ºC.

As a result of uncontrolled equipment growth and/or careless maintenance of Data Centers, a number of problems are being identified regularly:

  • Thermal loading incorrectly balanced.
  • Inadequate distribution of air grills failing to provide optimal rack cooling.
  • Loss of cold air due to incorrectly sealed or damaged cable openings/glands
  • Increased resistance to cold air flow caused by increased power and data cabling under a raised floor. In addition,  Air Conditioning units are dissipating expensive cold air through plenums without ducting the air to the appropriate locations or air grills.
  • The inefficient use of of cold air capacity and distribution often results in hot spots and increased energy costs.
  • Higher temperatures imply:
  • Higher rate of hardware degradation.
  • Higher risk of unforeseen temporary auto-shutdown of equipment.
  • Higher risk of a total Data Center crash.

The SMART COLD/HOT CORRIDOR solution greatly increases the potential life span of the data center and enables the safe usage of higher density computing.

  • Allows higher cold air inlet temperatures and consequently increased net usable cooling capacities.
  • Will reduce significantly the temperature difference (delta) between the upper and lower part of the racks, and obviate the need to relocate higher power consumption equipment  •Will improve significantly the maximum cooling capacity of regular cold aisle/hot aisle solutions, since inefficiency caused by poor air recirculation is removed.  One immediate result is a marked reduction in energy costs and general OPEX overhead, so an excellent ROI
  • The Smart Cold/Hot Corridor is a low-cost solution that can be retrofitted to any existing data center, and, importantly, without any downtime. Ready-to-use assembly kit.
  • It is very flexible, permitting any combination of height between 37U and 48U, adjusted to fit the specific racks.The width can be adapted to any aisle or corridor (full or half full), even if the racks form a corridor against the wall.
  • The insulation curtains, which are made of 3mm wide transparent PVC strips, make it easy to adapt to different heights of racks and allows light to permeate. The roof is made of GE® Lexan Polycarbonate, which provides excellent clarity, light transmission, durability, and better insulation than glass.
  • The Smart Cold/Hot Corridor moderates the air pressure inside the data center, as its flexible curtain strips will balance out the air pressure, acting like an overpressure valve. In the event that the fire extinguishing system triggers, the flexible curtains will allow the gas to enter the corridor.
  • The roof panels can be ordered with pre-determined holes for air condition inlets, smoke detectors, motorized grills or fire extinguishing nozzles.
  • The Smart Cold/Hot Corridor is simple and fast to transport and to install. For example, a 10- meter cold aisle can be installed in 1 day. Smart Cold/Hot Corridor construction is very flexible and does not involve the use of heavy machinery inside the data center, resulting in minimum disruption to data center operations and no costly downtime.
  • The Smart Cold/Hot Corridor is applicable in data centers which do not have raised floors. It is also vendor-neutral, adaptable to brand or rack manufacturer
  • The PVC strips are available in a range of colours to match customer’s design choice.
  • The price of the Smart Cold/Hot Corridor is often 50-60% cheaper than other solutions, so ideal for the budget-conscious customer.
  • The improvement in the way hot and cold air is managed by the Smart Cold/Hot Corridor also results in a better working environment not only for the data center but also contributes significantly to better energy usage and better working conditions for employees.

Smart Air Deflector

The Smart Air Deflector is a neat and simple solution which is mounted either in a raised floor or on top of racks.

The deflectors redirect cold air directly to where it is needed, which involves a simple installation under the raised floor.  The result is a saving in energy costs.

The deflectors work by separating the cold and hot aisles by mounting them on the top part of racks and without the need of installing complex roofing or bulky structures.

The deflectors work by re-routing the cold air path and avoiding interference with resistance elements.  The installation and configuration is easy, quick and simple with no need for any engineering work. Deflectors are secured either with heavy duty Velcro or if preferred, screwed on..
This is a low-cost and low-maintenance solution which can be retrofitted to any existing data center without any down time.  It ships as a ready-to-use assembly kit, and features an adjustable height facility to facilitate adapting a deflector to any height requirements (from floor slab to raised floor tile, from top of rack to ceiling).
Its modular design allows the user to:

  • Make curves with seamless joints and avoid cold air loss.
  • Save pipes and cable trays.
  • Adjust its width and improve air velocity due to the Venturi effect and also to reach distant points where cold air is needed.

Signifcant benefits provided by the Smart Air Deflector include:

  • a reduction of the data center carbon footprint.
  • a noticeable reduction of energy costs. Tests conducted on data centers using the Smart Air Deflector show 20% cooling improvement and subsequent ROI.


Data Center

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