Comments on: Heat Wheel Could Cut Data Center Cooling Bills

By: United Metal Benefits From Cooling Trends « GreenCoolings

United Metal Benefits From Cooling Trends « GreenCoolings — Mon, 17 Oct 2011 01:29:04 +0000

[...] different varieties of cooling, including air economization, systems that reuse waste heat, and a heat wheel system that employs an “air-to-air” heat [...]

By: Heat Wheel Could Cut Data Centre Cooling Bills | External Brain

Heat Wheel Could Cut Data Centre Cooling Bills | External Brain — Fri, 30 Sep 2011 01:48:23 +0000

[...] relatively new approach to data centre cooling known as a heat wheel is gaining momentum, and likely to gain a higher profile from an upcoming demonstration of the [...]

By: ORias

ORias — Fri, 02 Sep 2011 13:41:30 +0000

I’m bringing this back from the dead. I’ve been doing a bit of reading on the various air side economization technologies designed specifically for data center application and would be interested to hear some opinions on Schneider Electric’s EcoBreeze vs Kyoto.

By: DCtech

DCtech — Fri, 25 Feb 2011 02:01:36 +0000

KyotoCooling received patent protection from the US Patent office last year for it’s unique design. This patent comes on the heals of other international patent grants. US PATENT 7,753,766 B2 was granted July 13 2010. The design is indeed novel. The approach is protected under law.

By: sk lee

sk lee — Mon, 17 Jan 2011 02:22:07 +0000

I need your data for heat wheel

Pls send me e-mail

Thankyou

By: James Rhodes

James Rhodes — Wed, 22 Jul 2009 21:16:56 +0000

Very impressed to hear that the majority of the users are considering this technology. We have been manufacturing heat wheels since 1985.
We can provide capacities from 500 to 150,000 CFM. With a level of relibility unequaled in the industry. Zero Failures.

Thermotech Enterprises.

By: Cfulton

Cfulton — Sat, 17 Jan 2009 02:02:29 +0000

I just realized after looking at Alex’s post that it was perhaps not clear that these KyotoCells are high capacity. They are available in 300kw and 600kw designs at a 12C Delta T and that wheel output doubles as that increases to 24C with density rise in IT gear. The cells carry full capacity DX as well or they can use existing water chilled plant. Now these cells can be aggregated to multi-megawatt designs. This is not just theory it’s a fundamental part of the control system. One sophisticated enough to allow adhoc loading of the DC floor and deal with Delta T differentials. One that is totally failsafe and can self adjusting. In the test site they dial up 600kw from standing start and the system adapts to the load in minutes. Not many people drop .6 Mwatt on the floor in 15 minutes but its nice to see a cooling solution just deal with it. So size does matter if you are a large DC and these kinds of systems are for mission critical 600kw and up sites mostly. The control system supports this aggregation with balanced load and n+x redundancy for whatever tier level. So no plate exchanger will do that easily or has the capacity of one of these without struggling with some issues that will arise. Inside Air volume on the 600kw KyotoCell runs to 5M Cubic Ft/hr 150,000 cubic meters or 41,667 L/s. That’s a reasonable size to give pause to most plate proponents. This would all be theory if they did not have an advance control design that solved a bunch of problems along the way to make this intelligent, failsafe, plug and play and elegant. It’s a solution and it works, and it delivers PUE sub 1.2 designs without opening the windows for large DC’s that want best in class quality.For N+2 designs assuming high efficiency UPS (rotary coupled) in New York an annual aggregate PUE based on 10 year bin data of 1.18 is doable with this system. Denver can achieve annual average PUE 1.17 designs. Dallas can achieve annual average PUE of 1.27. San Diego 1.17, Jacksonville 1.25. These PUE’s hold for partial loads too. No outrageous issues at quarter or half loads.

By: Alex

Alex — Fri, 09 Jan 2009 02:16:28 +0000

We have been doing this for a while now in Australia to take advantage of low ambient conditions at night to provide economy cooling in sealed data centers and telephone exchanges. Our company produce a unique and internationally patented plate heat exchanger that combines both cross and counter flow and has eff up to 80% in both a total and a sensible only model, our units a substantially smaller than wheel based units. On the sensible model we have 0% cross contamination due to the design, this is then used on a closed loop as mentioned in the article, the humidity in the room is not changed as you are not introducing any moisture. We make a small in ceiling unit that does 150 l/s right up to a 10000 l/s unit. If your interested in more info have a look at our website air-change.com

By: Cfulton

Cfulton — Sat, 22 Nov 2008 17:03:55 +0000

Robb your comments are bang on. This is not our grandfathers heat wheel design. Application of what anyone thinks they know about heat wheels needs to be suspended until they take the time to understand this design. I have seen this first hand and taken it through it’s paces with clients and top notch engineering firms in due diligence. This is the real deal. Take a look, if you are serious about energy savings and open to new ideas. I have stood with some of the best in the industry as they shook their heads in amazement having arrived as doubters. They left convinced. Your information and view on the matter is accurate.

By: Dr. Valeriy Maisotsenko

Dr. Valeriy Maisotsenko — Thu, 20 Nov 2008 22:53:47 +0000

The M-Cycle for cooling of data centers through the Coolerado Cooler offers up to a 90% power reduction.

Recently, the U.S. Department of Energy (DOE) published the FEMP review (DOE/GO-102007-2325): “Coolerado Cooler Helps to Save Cooling Energy and Dollars”
(Shortcut to: http://www1.eere.energy.gov/femp/pdfs/tir_coolerado.pdf

http://www.achrnews.com/Articles/Article_Rotation/BNP_GUID_9-5-2006_A_10000000000000463073)

Coolerado air conditioners can be found in markets around the world- in Japan, Europe, and South America, Singapore as well as in the USA from Washington to Florida.

The Coolerado cooler utilizes the Maisotsenko Cycle, which has transitioned from the conceptual stage to an energy saving commercially available product. The Coolerado Cooler offers up to a 90% power reduction for air conditioning, and it can be efficient utilized for data centers, electronics cooling and microclimate systems. The Coolerado Cooler is unique apparatus for the expansion of cooling demands in emergency situations.

Our cooler falls into a new category of an “ultra” class cooler because of our extreme energy efficiency and ability to cool air below the wet bulb temperatures without a compressor and can offer your company a significant reduction in the power demand for your data centers.

The National Renewable Energy Laboratory (NREL) is the nation’s primary laboratory for renewable energy and it recommends the Maisotsenko Cycle, which “significantly reduces electric demand for any cooling applications”.

The Maisotsenko cycle (M-Cycle) has broken through the thermo-dynamic barrier, cooling air or any fluids below wet bulb approaching the dew point temperature. This far-reaching achievement will bring energy efficiency gains unimaginable before now to the air-cooling, liquid cooling and power production industries (see our U.S. Patents No 6,497,107; 6,581,402; 6,705,096; 6,776,001; 6,779,351; 6,854,278; 6,948,558; 7,007,453; 7,197,887; 7,228,669; etc.).

Today the M-Cycle assists Federal agencies reach their energy-use reduction goals and it has been successfully tested and researched for cooling applications by NREL (FEMP), SMUD, Delphi, PG&E, Sanwa (Japan), etc. Since then, this product received wide recognition from all over the world: Coolerado Cooler won the International 2004 R&D 100 award, the US Green Builder 2006 Top Ten Product award, the 2007 Sustainable Business Silver Medal of Honor award, and the 2007 Sustainable Business Silver Medal of Honor award, the History Channel and Invent Now Award 2007, and just recently, the BUILDING PRODUCTS Top 100 Winner for 2008.
Coolerado air conditioners can be found in markets around the world- in Japan, Europe, and South America, Singapore as well as in the USA from Washington to Florida.

Realizing the M-Cycle through our apparatuses it is possible to reduce of the temperature of any coolant from outside condition (for example, 80°C or 175°F) approaching the incoming air’s dew point temperature (for example, 12°C or 55°F).
So our apparatuses are like refrigerant machines, which produce the cold air (or liquid), but cheaper, more compact, less consumption of energy (five times) and more reliable.
After producing the cold coolant through the Coolerado Coolers, it is necessary to distribute it for rejection heat from existing racks of data centers containing computing units.

The M-Cycle combines heat exchange and evaporative cooling in a unique regenerative indirect evaporative cooling process that results in product flow temperatures approaching the incoming air’s dew point temperature.
Thermodynamically, the M-Cycle’s working air (air rejecting heat) is pre-cooled before passing through the heat rejection water evaporating area, so the difference between the enthalpy of the working air at it’s dew point temperature and the same working air saturated at a higher temperature is used to provide cooling capacity to reject heat.
But only the M-Cycle has additional unique properties, which particularly important for data centers, electronics cooling and microclimate systems:

1) The M-Cycle’s cooling capacity increases (instead of decreases for all existing cooling cycles), when the temperature of the fluid being cooled increases.

2) The M-Cycle, producing cooling capacity to reject heat through the cold product flow, simultaneously produces the working air flow saturated at a higher temperature, which has huge absolute humidity. This saturated working air can be used (if it necessary) to keep for computer room right level of relative humidity within the 40% to 55% range. In this case we don’t need to install a humidifier.

Please allow me a brief introduction of our companies. Coolerado LLC and Idalex Inc. are emerging technology firms. We have patented the M-cycle for many practical applications.

The world leader in automotive thermal technology Delphi Corp. has since license the manufacturing right to produce our advanced thermodynamic heat and mass exchanger, and has begun to mass-produce this product (Coolerado Cooler) for air conditioning applications.

For more information about the M-Cycle, please visit our web sites at http://www.coolerado.com and http://www.idalex.com

Dr., Prof. Valeriy Maisotsenko
Chief Scientist,
Idalex Technologies Inc.
http://www.idalex.com
vm@idalex.com