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2018 Building Performance Analysis Conference and SimBuild co-organized by ASHRAE and IBPSA-USA

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Modelica Models for Data Center Cooling Systems

Yangyang Fu, Michael Wetter, Wangda Zuo
University of Colorado Boulder, Boulder, CO
Lawrence Berkeley National Laboratory, Berkeley, CA

Abstract: This paper presents a package of Modelica models, which are dedicated to data center cooling systems and recently added to the Modelica Buildings library. To demonstrate the usage of this package, we modeled a chilled water system with an integrated wateside economizer, and an air-cooled direct expansion system with an airside economizer. These models are then applied to evaluate the control performance. After that we performed a detailed comparison in terms of systemlevel energy efficiency, economizing hours and supply air conditions for the two cooling systems. The advantages and disadvantages of this package are finally summarized and discussed.
Pages: 438 - 445
Paper:
simbuild2018_C061