Validation of the climatic zoning defined by ASHRAE standard 169-2013

Angélica Walsh, Daniel Cóstola, Lucila Labaki

Research output: Contribution to journalArticle

Abstract

Climatic zoning has a direct impact on building energy efficiency policies. Currently, most countries adopt simplified weather parameters to define their climatic zoning, with the degree-day method being the most widely used. This widespread use of degree-days has been substantially influenced by the adoption of this indicator by ASHRAE on its climatic zoning, which is a core element for the prescription of requirements for buildings based on their location. However, there is no scientific evidence regarding the agreement between building energy performance and the ASHRAE climatic zones. The objective here was to quantify the mismatch between buildings’ energy performance in each given location and the expected energy performance in the climatic zone they are placed. The study uses a performance-based assessment method relying on building energy simulation and GIS. Climatic zoning performance indicators were calculated based on the energy demand of 52 archetype buildings of the U.S. building stock complying with the ASHRAE Standard 90.1–2013. Results suggest that the stipulated climatic zone misclassifies 10% of the area evaluated, potentially misclassifying highly populated urban areas. These misclassifications have direct impact on the building energy efficiency policies of a given location, which may not be the most adequate for its climate.
LanguageEnglish
Article number111016
Number of pages10
JournalEnergy Policy
Volume135
Early online date1 Oct 2019
DOIs
Publication statusE-pub ahead of print - 1 Oct 2019

Fingerprint

Zoning
zoning
energy efficiency
Energy efficiency
energy
assessment method
Geographic information systems
urban area
GIS
weather
climate
simulation
climatic zone
policy
indicator

Keywords

  • climate zones
  • ASHRAE
  • energy performance
  • energy policy

Cite this

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title = "Validation of the climatic zoning defined by ASHRAE standard 169-2013",
abstract = "Climatic zoning has a direct impact on building energy efficiency policies. Currently, most countries adopt simplified weather parameters to define their climatic zoning, with the degree-day method being the most widely used. This widespread use of degree-days has been substantially influenced by the adoption of this indicator by ASHRAE on its climatic zoning, which is a core element for the prescription of requirements for buildings based on their location. However, there is no scientific evidence regarding the agreement between building energy performance and the ASHRAE climatic zones. The objective here was to quantify the mismatch between buildings’ energy performance in each given location and the expected energy performance in the climatic zone they are placed. The study uses a performance-based assessment method relying on building energy simulation and GIS. Climatic zoning performance indicators were calculated based on the energy demand of 52 archetype buildings of the U.S. building stock complying with the ASHRAE Standard 90.1–2013. Results suggest that the stipulated climatic zone misclassifies 10{\%} of the area evaluated, potentially misclassifying highly populated urban areas. These misclassifications have direct impact on the building energy efficiency policies of a given location, which may not be the most adequate for its climate.",
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Validation of the climatic zoning defined by ASHRAE standard 169-2013. / Walsh, Angélica; Cóstola, Daniel; Labaki, Lucila.

In: Energy Policy, Vol. 135, 111016, 01.12.2019.

Research output: Contribution to journalArticle

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