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Open AccessEditor’s ChoiceArticle

Ecoenergetic Comparison of HVAC Systems in Data Centers

Department of Electromechanical Engineering, University of Beira Interior, 6201-001 Covilhã, Portugal
FAPRO—Professional College, 80230-040 Curitiba, Brazil
C-MAST—Centre for Mechanical and Aerospace Science and Technologies, 6201-001 Covilhã, Portugal
Author to whom correspondence should be addressed.
Academic Editor: Chris Swanston
Climate 2021, 9(3), 42;
Received: 3 February 2021 / Revised: 25 February 2021 / Accepted: 2 March 2021 / Published: 4 March 2021
The topic of sustainability is of high importance today. Global efforts such as the Montreal Protocol (1987) and the Kigali Amendment (2016) are examples of joint work by countries to reduce environmental impacts and improve the level of the ozone layer, the choice of refrigerants and air conditioning systems, which is essential for this purpose. But what indicators are to be used to measure something so necessary? In this article, the types of air conditioning and GWP (Global Warming Potential) levels of equipment in the project phase were discussed, the issue of TEWI (Total Equivalent Warming Impact) that measures the direct and indirect environmental impacts of refrigeration equipment and air conditioning and a new methodology for the indicator was developed, the TEWI DC (DC is the direct application for Data Center), and using the formulas of this new adapted indicator it was demonstrated that the TEWI DC for Chicago (USA) was 2,784,102,640 kg CO2/10 years and Curitiba (Brazil) is 1,252,409,640 kg CO2/10 years. This difference in value corresponds to 222.30% higher annual emissions in Chicago than in Curitiba, showing that it is much more advantageous to install a Data Center in Curitiba than in Chicago in terms of environmental impact. The TEWI indicator provides a more holistic view, helping to combine energy and emissions into the same indicator. View Full-Text
Keywords: global warming; TEWI; Data Center; climate; refrigerants; EUED global warming; TEWI; Data Center; climate; refrigerants; EUED
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MDPI and ACS Style

Santos, A.F.; Gaspar, P.D.; de Souza, H.J.L. Ecoenergetic Comparison of HVAC Systems in Data Centers. Climate 2021, 9, 42.

AMA Style

Santos AF, Gaspar PD, de Souza HJL. Ecoenergetic Comparison of HVAC Systems in Data Centers. Climate. 2021; 9(3):42.

Chicago/Turabian Style

Santos, Alexandre F.; Gaspar, Pedro D.; de Souza, Heraldo J.L. 2021. "Ecoenergetic Comparison of HVAC Systems in Data Centers" Climate 9, no. 3: 42.

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