stats FreshPatents Stats
6 views for this patent on
2013: 5 views
2012: 1 views
Updated: October 13 2014
newTOP 200 Companies filing patents this week

    Free Services  

  • Enter keywords & we'll notify you when a new patent matches your request (weekly update).

  • Save & organize patents so you can view them later.

  • RSS rss
  • Create custom RSS feeds. Track keywords without receiving email.

  • View the last few months of your Keyword emails.

  • Patents sorted by company.

Follow us on Twitter
twitter icon@FreshPatents

Air cooling unit for data centers

last patentdownload pdfdownload imgimage previewnext patent

20120298334 patent thumbnailZoom

Air cooling unit for data centers

An air handling unit utilizing a humidifier in conjunction with a heat exchanger to provide a means for free cooling recirculating return air with evaporatively cooled outside air. A first air stream comprising outside air can be circulated through the evaporative humidifier and a first portion of the energy recovery heat exchanger, while a second air stream comprising recirculated inside air can be circulated through a second portion of the heat exchanger. The outside air will be humidified as it circulates through the humidifier, thereby cooling the outside air to its adiabatic saturation temperature. The heat exchanger will cool the recirculating inside air with the evaporatively cooled outside air.
Related Terms: For Free Free Cooling Humidifier

Inventors: Stephen Madaffari, Eric Derasse
USPTO Applicaton #: #20120298334 - Class: 16510413 (USPTO) - 11/29/12 - Class 165 
Heat Exchange > Intermediate Fluent Heat Exchange Material Receiving And Discharging Heat >Plural Intermediate Fluent Heat Exchange Materials

view organizer monitor keywords

The Patent Description & Claims data below is from USPTO Patent Application 20120298334, Air cooling unit for data centers.

last patentpdficondownload pdfimage previewnext patent


This application claims the benefit of U.S. Provisional Application Ser. No. 61/491,057 filed May 27, 2012.


Data centers—facilities that primarily contain electronic equipment used for data processing, data storage, and communications networking—have become common and essential to the functioning of nearly every sector of the economy to aid business processes, information management, and communications functions. Increasing demand for computer resources has led to significant growth in the number of data center servers, along with a considerable increase in the energy used by these servers and the cooling infrastructure that supports them. The cooling infrastructure for data centers is estimated to account for 50 percent of the total energy consumption of data centers. See U.S. EPA Report to Congress on Server and Data Center Energy Efficiency, Public Law 109-431 (August 2007).

The continuous operation of the electronic equipment generates a significant amount of heat. The role of data center air-conditioning systems is to remove this heat from the data center to keep the components of the electronic equipment within the manufacturers\' specified temperature and humidity ranges. Cooling in data centers is often provided by computer room air conditioning units, where the entire air handling unit is situated on the data center floor. The air handling unit contains fans, filters, and cooling coils and is responsible for conditioning and distributing air throughout the data center. In most cases, air enters the top of the air conditioning unit and is conditioned as air passes across coils containing chilled water pumped from a chiller located outside of the data center room. The conditioned air is then supplied to the electronic equipment (primarily servers), typically through a raised floor area. Fans within the servers pull the conditioned air through the servers. The warmed air then stratifies toward the ceiling and eventually makes its way back to the air conditioning unit intake. Most air circulation in data centers is internal to the data center zone. To maintain a controlled environment, the majority of data centers are designed so that only a small amount of outside air enters.

Due the increased energy and capital costs associated with the expanded use of computer resources, there has been mounting interest in opportunities for energy efficiency in the information technology (IT) industry. Air-side economizers are increasingly being considered as a viable option for lowering the energy usage of a data center\'s cooling infrastructure. An air-side economizer is a type of air handling unit which takes advantage of cold outside temperatures to provide “free cooling” cycles that reduce or eliminate the need for the mechanical air cooling (i.e., cooling via compressors, chillers, cooling media pumps, etc.) employed by traditional data center air-conditioning systems.

Given that a data center must run continuously for a total of 8,760 hours per year, significant energy savings can be achieved with a typical air-side economizer when the outside air conditions fall within the allowable ranges. However, the operating hours of an air-side economizer are dependent on the outside air conditions—namely, the air temperature and air humidity. An air-side economizer can provide free cooling any time the outside temperature is below the required supply temperature and below the required supply dew point for the controlled environment. The economizer cycle can provide partial free cooling by reducing the mechanical cooling load when the outdoor temperature is higher than the required supply temperature but the outdoor air dew point is less than the dew point of the return air. In the context of data centers, the American Society of Heating, Refrigerating and Air Conditioning Engineers (ASHRAE) has provided the following recommended and allowable temperature and humidity ranges for data centers:

Recommended Allowable Temperature 18-27° C. (64.5-80.6° F.) 15-32° C. (59-90° F.) Humidity 5.5-15° C. Dew Point 20%-80% Relative (41.9-59° F.) Humidity

Download full PDF for full patent description/claims.

Advertise on - Rates & Info

You can also Monitor Keywords and Search for tracking patents relating to this Air cooling unit for data centers patent application.
monitor keywords

Keyword Monitor How KEYWORD MONITOR works... a FREE service from FreshPatents
1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored.
3. Each week you receive an email with patent applications related to your keywords.  
Start now! - Receive info on patent apps like Air cooling unit for data centers or other areas of interest.

Previous Patent Application:
Modular, fluid thermal transfer device
Next Patent Application:
Air-cooling wall with slidable heat exchangers
Industry Class:
Heat exchange
Thank you for viewing the Air cooling unit for data centers patent info.
- - - Apple patents, Boeing patents, Google patents, IBM patents, Jabil patents, Coca Cola patents, Motorola patents

Results in 0.62824 seconds

Other interesting categories:
Software:  Finance AI Databases Development Document Navigation Error


Data source: patent applications published in the public domain by the United States Patent and Trademark Office (USPTO). Information published here is for research/educational purposes only. FreshPatents is not affiliated with the USPTO, assignee companies, inventors, law firms or other assignees. Patent applications, documents and images may contain trademarks of the respective companies/authors. FreshPatents is not responsible for the accuracy, validity or otherwise contents of these public document patent application filings. When possible a complete PDF is provided, however, in some cases the presented document/images is an abstract or sampling of the full patent application for display purposes. Terms/Support

FreshNews promo

stats Patent Info
Application #
US 20120298334 A1
Publish Date
Document #
File Date
Other USPTO Classes
165 96, 622592
International Class

For Free
Free Cooling

Follow us on Twitter
twitter icon@FreshPatents