...R. Khalid; S. G. Schon; R. L. Amalfi; A. Ortega; A. P. Wemhoff This study aims to improve the combined energy efficiency of data center cooling systems and heating/cooling systems in surrounding premises by implementing a modular cooling approach on a 42 U IT rack. The cooling solution uses a close...

...R. Khalid; E. Youssef; R. L. Amalfi; A. Ortega; A. P. Wemhoff A thermosyphon-based modular cooling approach offers an energy efficient cooling solution with an increased potential for waste heat recovery. Central to the cooling system is an air-refrigerant finned tube heat exchanger (HX), where air...

... system, but only when coupled calculations are used. These results indicate that the coupled calculations impact predicted general energy efficiency metrics and enable statistically significant conclusions when comparing different data center cooling and power distribution strategies. where...

.../j.apenergy.2011.02.003 [6] Ellsworth , Jr. , M. J., and Iyengar, M. K., 2009 , “ Energy Efficiency Analyses and Comparison of Air and Water Cooled High Performance Servers ,” ASME Paper No. InterPACK2009-89248 . 10.1115/InterPACK2009-89248 [7] Fernandes , J. , Ghalambor , S...

...Ismail Turkmen; Cem Ahmet Mercan; Hamza Salih Erden The share of equipment and power use in smaller data centers (DCs) is comparable with that of more massive counterparts. However, they grabbed less attention in the literature despite being less energy-efficient. This study highlights...

...Rehan Khalid; Aaron P. Wemhoff Two self-developed control schemes, ON/OFF and supervisory control and data acquisition (SCADA), were applied on a hybrid evaporative and direct expansion (DX)-based model data center cooling system to assess the impact of controls on reliability and energy efficiency...

... microprocessor chips temperature control thermal resistance Data center cooling thermal management chip to cooling tower energy efficiency heat sink © 2010 IEEE. Reprinted with permission from the “12th IEEE Intersociety Conference on Thermal and Thermomechanical Phenomena in Electronic...

...Emad Samadiani; Hrishikesh Amur; Bhavani Krishnan; Yogendra Joshi; Karsten Schwan Concurrency and exchanging design knowledge among thermal and IT management are required to achieve an energy efficient operational data center. In this paper, a design approach is presented to bring adaptability...

... of a silicon-based processor operating at the speed of the human brain could be of the order of kilowatts or even megawatts ( 6 ). The development of such large power sources for mobile applications will be challenging to say the least. exergy thermal management energy efficiency chip performance...

... are evolving in two directions. One direction is toward bigger and more sophisticated systems. The other is toward systems that are more compact and portable. In both cases, the energy efficiency is becoming an increasingly important design issue. This paper summarizes an exploration of the exergy cost...