Applied and Computational Engineering

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Proceedings of the 4th International Conference on Materials Chemistry and Environmental Engineering

Series Vol. 63 , 09 May 2024


Open Access | Article

Medium office energy consumption optimization using EnergyPlus

Shu Liu * 1
1 University of Toronto

* Author to whom correspondence should be addressed.

Applied and Computational Engineering, Vol. 63, 45-55
Published 09 May 2024. © 09 May 2024 The Author(s). Published by EWA Publishing
This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Citation Shu Liu. Medium office energy consumption optimization using EnergyPlus. ACE (2024) Vol. 63: 45-55. DOI: 10.54254/2755-2721/63/20240992.

Abstract

This research paper studies the impacts of HVAC system scheduling and building envelope material properties on the building energy efficiency in the downtown New York City, metropolitan area, that is highly associated with Urban Heat Island. By utilizing EnergyPlus for whole energy building simulation, the research compares two HVAC operational cases: a baseline case with constant temperature setpoints, and an occupancy-based temperature setpoint schedule. The study also investigated the influence of thermal conductivity variations in stucco exterior wall materials, with three cases, the default baseline thermal conductivity and a ±15% variance, respectively. Results indicate that occupancy-driven scheduling significantly reduces energy consumption by approximately 16% annually compared to baseline. Conversely, the influence of thermal conductivity on energy consumption is minimal, with only a 0.35% deviation noted in response to a 15% variation in thermal conductivity. This suggests that both optimizing HVAC scheduling and the thermal conductivity of building envelope materials can save building energy consumption while optimizing HVAC scheduling has a relatively stronger impact than optimizing the thermal conductivity with a 15% variance in downtown New York City.

Keywords

Whole Building Energy Simulation, EnergyPlus, Occupancy Based Scheduling

References

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2. U.S. Energy Information Administration, “2018 Commercial Buildings Energy Consumption Survey Building Characteristics Highlights.” [Online]. Available: 2018 Commercial Buildings Energy Consumption Survey Building Characteristics Highlights https://www.eia.gov/ consumption/commercial/reports/2012/energyusage/

3. X. Li, Y. Zhou, S. Yu, G. Jia, H. Li, and W. Li, “Urban heat island impacts on building energy consumption: A review of approaches and findings,” in ScienceDirect, 2019, [Online]Available: https://www.sciencedirect.com/science/article/abs/pii/S03605442193038 95#:~:text=The%20reported%20UHI%20impacts%20showed,than%20that%20in%20urban%20periphery

4. R. E. López-Guerrero, K. Verichev, G. A. Moncada-Morales, and M. Carpio, “How do urban heat islands affect the thermo-energy performance of buildings?,” Journal of Cleaner Production, vol. 373, p. 133713, 1 Nov. 2022.

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6. NYC Environmental Protection, “Analyzing the Urban Heat Island Effect,” [Online]. Available: https://www.nyc.gov/assets/dep/downloads/pdf/environment/education/10-analyzing-urban-heat-island-effect.pdf.

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Data Availability

The datasets used and/or analyzed during the current study will be available from the authors upon reasonable request.

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Volume Title
Proceedings of the 4th International Conference on Materials Chemistry and Environmental Engineering
ISBN (Print)
978-1-83558-417-0
ISBN (Online)
978-1-83558-418-7
Published Date
09 May 2024
Series
Applied and Computational Engineering
ISSN (Print)
2755-2721
ISSN (Online)
2755-273X
DOI
10.54254/2755-2721/63/20240992
Copyright
09 May 2024
Open Access
This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited

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