Resilient cooling strategies: an all-air HVAC case study

Laura Carnieletto*, Laura Corazza, Dragos I. Bogatu, Jun Shinoda, Ongun B. Kazanci, Michele de Carli, Bjarne W. Olesen

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

Resilient cooling is the ability of a building-plant system to withstand and recover after a disruptive event. In particular, heatwaves and power outages have been considered in this study as perturbations of a building-plant system. The present work investigated the operation of an all-air HVAC system combined with two air to water heat pumps in Copenhagen, Denmark. TRNSYS simulations considered both current and future outdoor climatic conditions, both in mid and long term, to evaluate building’s energy use. The results showed that during heatwaves operative temperatures higher than 28 °C were registered, but only for 5 to 20% of the occupied time in the worst scenario. The variation was due to the cooling load, which increased as the heatwave increased in length and intensity. Nevertheless, the energy use did not considerably increase with values between 33 to 39 kWh/(m2 y) but the system resulted to be non-resilient in most of the cases that combine heatwaves with power outages.
Original languageEnglish
Title of host publicationProceedings of Healthy Buildings 2023 Europe
Number of pages8
Place of PublicationAachen
PublisherRWTH Aachen University
Publication date2023
Pages1125-1132
Article number1387
Publication statusPublished - 2023
Event18th Healthy Buildings Europe Conference - Aachen, Germany
Duration: 11 Jun 202314 Jun 2023
Conference number: 18

Conference

Conference18th Healthy Buildings Europe Conference
Number18
Country/TerritoryGermany
CityAachen
Period11/06/202314/06/2023

Keywords

  • Resilient cooling
  • Heatwave
  • Power outage
  • All-air system
  • Thermal comfort

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