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Viability of HVAC System for Energy Conservation in High Density Internal-load Dominated Buildings  

Cho, Jin-Kyun (Hanil Mechanical Electrical Consultants Ltd)
Jeong, Cha-Su (Hanil Mechanical Electrical Consultants Ltd)
Kim, Byung-Seon (Department of Architectural Engineering, Yonsei University)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.22, no.8, 2010 , pp. 530-537 More about this Journal
Abstract
With the advancement of technology, the density of IT equipment, heat load and power consumption continue to increase in high density internal-load dominated buildings as datacenters. To improve the HVAC system's energy performance and efficiency, there is a need to find methods of using outside air. Through cooling tower control that is based on outside wet-bulb temperature, the water-side economizer made it possible to achieve a maximum energy performance improvement of about 16.6% over the basic chilled water system, whereas the air-side economizer, through control based on outdoor air enthalpy, made it possible to achieve about 42.4% improvement.
Keywords
Data center; Energy efficiency; Water-side economizer; Air-side economizer; Energy simulation;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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1 ASHRAE TC9.9, 2004, Thermal guidelines for data processing environments, American Society of Heating, Refrigerating and Air-conditioning Engineers, Inc.
2 Cho, J. K., Jeong, C. S. and Kim, B. S., 2008, The planning and design of the optimal cooling system for IT environments in data centers, Journal of the Architectural Institute of Korea, Vol. 24, No. 12, pp. 313-320.
3 Mingay, S., 2007, Green IT : The New Industry Shockwave, Gartner RAS Core Research, Note G00153703.
4 Sorell, V., 2007, OA Economizers for Data Centers, ASHRAE Journal, Vol. 49, No. 12, pp. 32- 37.
5 ASHRAE TC9.9, 2005, Design considerations for datacom equipment centers, American Society of Heating, Refrigerating and Air-conditioning Engineers, Inc.
6 Kim, S. H., Won, J. Y., Choi, Y. K. and Lee, E. K., 2006, A Study on the Energy Saving Effects of Free Cooling System, Journal of the Architectural Institute of Korea, Vol. 22, No. 2, pp. 227-234.
7 Patterson, M. K. and Pratt, A., 2007, An Endto- end Evaluation of Data Center Efficiency, Digital Enterprise Group Architecture and Planning, Intel Corp.
8 Atwood, D. and Miner J. G., 2008, Reducing Data Center Cost with an Air Economizer, IT@Intel Brief, Intel Information Technology Computer Manufacturing Energy Efficiency.
9 Scofield, M. and Weaver, T. S., 2008, Data Center Cooling Using Wet-bulb Economizers. ASHRAE Journal Vol. 50 No. 8, pp. 52-58.
10 Emerson Network Power, 2008, Reducing Data Center Energy Consumption by Creating Savings that Cascade Across Systems, A White Paper from the Experts in Business-Critical Continuity.
11 Kurkjian, C. and Glass J., 2007, Meeting the Needs of 24/7 Data Centers, ASHRAE Journal Vol. 49, No. 2, pp. 24-35.