IDENTIFYING KEY DESIGN PARAMETERS FOR ANTHROPOGENIC HEAT EMISSION AND ENERGY CONSUMPTION FROM BUILDING TO SUPPORT DECISION MAKING TOWARD URBAN HEAT ISLAND REDUCTION

Mansour Alhazmi*, Dongwoo Jason Yeom, David Sailor, Jyothis Anand

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

Abstract

The energy consumed by a building is assumed to be equal to the heat emission by the building. Recent studies show the sensible heat emitted from the building is higher than its energy consumption. The heat released from the buildings can increase the nearby air temperature and the magnitude of urban heat island effect. In general, buildings release heat in three mechanisms by rejecting heat from the air conditioning system, building envelope, and zone exfiltration. This study aims to understand the significant parameters of different design variables on energy consumption and heat emission from a 4-story office building. Sensitivity analysis and parametric framework are introduced to test the hypothesis on 15 U.S. cities to represents all the climate zones. EnergyPlus and JMP are used to simulate the building's performance and sensitivity analyses respectively. The results show that the significant design variable affecting the energy consumption is not the same as the heat emission from the building. For energy consumption, it found the window-to-wall ratio (WWR) is a significant parameter in all climate zones, while the roof reflectivity, SHGC, and heating set point are significant parameters to the heat emission. The importance of this study is to guide designers during the early stage of the design process to understand their decision on both energy consumption and heat emission and make conscious decisions during different stages of the design process.

Original languageEnglish
Pages (from-to)579-588
Number of pages10
JournalProceedings of the Thermal and Fluids Engineering Summer Conference
Volume2023-March
StatePublished - 2023
Event8th Thermal and Fluids Engineering Conference, TFEC 2023 - Hybrid, College Park, United States
Duration: 26 Mar 202329 Mar 2023

Bibliographical note

Publisher Copyright:
© 2023 Begell House Inc.. All rights reserved.

Keywords

  • Anthropogenic heat
  • Buildings
  • Early-stage
  • Energy use
  • Parametric analysis
  • Sensible fluxes
  • Sensitivity analysis
  • Waste heat emissions

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes
  • Electrical and Electronic Engineering

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