Computer Room Air Conditioning

Conduct Research

• Applications for Infrared Thermography at Computer Centers
  of. all computer components. The objective of the design of the cooling system is to provide a clear path. from the source of the cooled air to the intakes of the servers. The heat from the equipment must also be. efficiently returned to the return air duct of the CRAC (Computer Room Air Conditioning...
• Case Study: US Internet
  -Cooled Computer Room Air Conditioning Units With Outdoor Air-Cooled Condensers. Liebert XD Data Center Cooling. Liebert Interceptor TVSS Service Entrance Units. Liebert Series 610 300 kVA Uninterruptible Power. Liebert PPC Precision Power Centers. Liebert FPC Power Distribution System with transformer...
• Using EC Plug Fans to Improve Energy Efficiency
  on the three units we submitted for. pressure applied to the cooling system. testing because: Different test methods wil result in different. total static pressures and air volumes. The. 1. It is now the American standard for. total static pressure is made up of several. computer room air conditioning...
• Economizer Fundamentals: Smart Approaches to Energy-Efficient Free-Cooling for Data Centers
  for different types of economizers?. 1. Introduction. compressor operation in Computer Room. Air Conditioning (CRAC) units. This enables. Interest in using economizer systems to. economizer systems to lower energy usage. improve energy efficiency has been gaining. of a precision cooling system from 30...
• Walter C. Mackenzie Health Sciences Centre Resolves Maintenance Problem and Reduces Energy Consumption (.pdf)
  The WCM was experiencing severe problems caused by the fouling of cooling coils and other components of its cooling systems. Air conditioning was affected, medical equipment was deteriorating and the facilities management staff was facing large repair bills. Computer equipment operation...
• Infrared Imaging and Log Construction Thermal Performance
  dependent on the temperature variance between. the interior room/building temperature and the exterior ambient air temperature. The greater the. temperature difference between the two (interior and exterior), the more vividly the infrared imagery will. depict the relative amount of air infiltration...
• Case Study: Customers Report AirBlock Data Center Enclosures Pay Off (.pdf)
  partitions from Simplex. "We were originally employing 35 tons of air conditioning to cool that room," said Eugean. Hacopians, senior system engineer at Caltech. "We are now using 16 tons of air conditioning.". "We are also able to reduce the temperature in that room by ten degrees without resetting...
• Fatigue Performance of Nitinol Round Wire with Varying Cold Work Reductions (.pdf)
  cold work in five percent increments. These samples were subsequently heat treated, cut into test sections at room temperature, and subjected to strain-controlled fatigue testing in a temperature-controlled RO water bath at a constant 10 _C above the measured active austenitic finish temperature (Af...
• Analytical techniques
  of the heating circuits. The system is also purged of sample gas to avoid condensation. Through the second check valve (10) dry, CO2-free compressed air is automatically released for the purpose of recording zero-gas spectra. The molecular sieve unit (14) is used for conditioning the compressed air...
• Protecting History Is the Challenge; Liebert Has the Solution (.pdf)
  and. customer. 40%. However, the air conditioning system in the cool storage room where these artifacts. were kept could not maintain these ranges. A temperature-humidity recorder indicated that. The Partner. the existing system was not stabilizing the room ­ and might be putting its contents at risk. Kelly...

Engineering Web Search: Computer Room Air Conditioning