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Research on energy-saving factors adaptability of exterior envelopes of university teaching-office buildings under different climates (China) based on orthogonal design and EnergyPlus

To achieve carbon neutrality in 2060 (China), building energy-saving has been highly concerned. University buildings have great energy-saving potential as part of energy consumption where 70% of energy loss is caused by heat transfer from the envelope. However, most of the research on energy-saving...

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Autores principales: Liu, Zu’an, Hou, Jiawen, Zhang, Lili, Dewancker, Bart Julien, Meng, Xi, Hou, Chaoping
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9396555/
https://www.ncbi.nlm.nih.gov/pubmed/36016524
http://dx.doi.org/10.1016/j.heliyon.2022.e10056
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author Liu, Zu’an
Hou, Jiawen
Zhang, Lili
Dewancker, Bart Julien
Meng, Xi
Hou, Chaoping
author_facet Liu, Zu’an
Hou, Jiawen
Zhang, Lili
Dewancker, Bart Julien
Meng, Xi
Hou, Chaoping
author_sort Liu, Zu’an
collection PubMed
description To achieve carbon neutrality in 2060 (China), building energy-saving has been highly concerned. University buildings have great energy-saving potential as part of energy consumption where 70% of energy loss is caused by heat transfer from the envelope. However, most of the research on energy-saving factors for envelopes is limited to a certain climate or a specific building type, and the optimal configuration of envelopes under different climatic regions has not been well solved. Therefore, the influence degree and appropriate parameters of each factor of the teaching-office building envelopes on energy consumption under different climates were analyzed in this paper by orthogonal design and numerical simulation. Results show that: (1) Solar heat gain coefficient (SHGC) and indoor air change rates (ACH) [the heat transfer coefficient of the exterior wall (K(wall)) and ACH] are the main factors affecting the cooling [heating] load, the insulation form of the exterior wall (W(ins)) and K(wall) [W(ins) and solar radiation absorption coefficient of exterior surface materials (ρ(s))] have less influence; (2) The important ranking and optimal level of the influence of each factor on the cooling (or heating) loads are related to local load demands; (3) For the annual load, K(wall) and the heat transfer coefficient of the exterior window (K(win)) is the focus of energy-saving in severe cold and cold zones, but their impact is not significant in Guangzhou and Kunming, and the high significance of SHGC is only shown in Hohhot, Lhasa, Guangzhou, and Haikou; (4) The annual load energy savings reach 39.64%–57.57% in different climates by optimizing all factors. The research results can provide directions and data references for the energy-saving design and renovation of educational building envelopes in different climates (China).
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spelling pubmed-93965552022-08-24 Research on energy-saving factors adaptability of exterior envelopes of university teaching-office buildings under different climates (China) based on orthogonal design and EnergyPlus Liu, Zu’an Hou, Jiawen Zhang, Lili Dewancker, Bart Julien Meng, Xi Hou, Chaoping Heliyon Research Article To achieve carbon neutrality in 2060 (China), building energy-saving has been highly concerned. University buildings have great energy-saving potential as part of energy consumption where 70% of energy loss is caused by heat transfer from the envelope. However, most of the research on energy-saving factors for envelopes is limited to a certain climate or a specific building type, and the optimal configuration of envelopes under different climatic regions has not been well solved. Therefore, the influence degree and appropriate parameters of each factor of the teaching-office building envelopes on energy consumption under different climates were analyzed in this paper by orthogonal design and numerical simulation. Results show that: (1) Solar heat gain coefficient (SHGC) and indoor air change rates (ACH) [the heat transfer coefficient of the exterior wall (K(wall)) and ACH] are the main factors affecting the cooling [heating] load, the insulation form of the exterior wall (W(ins)) and K(wall) [W(ins) and solar radiation absorption coefficient of exterior surface materials (ρ(s))] have less influence; (2) The important ranking and optimal level of the influence of each factor on the cooling (or heating) loads are related to local load demands; (3) For the annual load, K(wall) and the heat transfer coefficient of the exterior window (K(win)) is the focus of energy-saving in severe cold and cold zones, but their impact is not significant in Guangzhou and Kunming, and the high significance of SHGC is only shown in Hohhot, Lhasa, Guangzhou, and Haikou; (4) The annual load energy savings reach 39.64%–57.57% in different climates by optimizing all factors. The research results can provide directions and data references for the energy-saving design and renovation of educational building envelopes in different climates (China). Elsevier 2022-08-04 /pmc/articles/PMC9396555/ /pubmed/36016524 http://dx.doi.org/10.1016/j.heliyon.2022.e10056 Text en © 2022 The Author(s) https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Research Article
Liu, Zu’an
Hou, Jiawen
Zhang, Lili
Dewancker, Bart Julien
Meng, Xi
Hou, Chaoping
Research on energy-saving factors adaptability of exterior envelopes of university teaching-office buildings under different climates (China) based on orthogonal design and EnergyPlus
title Research on energy-saving factors adaptability of exterior envelopes of university teaching-office buildings under different climates (China) based on orthogonal design and EnergyPlus
title_full Research on energy-saving factors adaptability of exterior envelopes of university teaching-office buildings under different climates (China) based on orthogonal design and EnergyPlus
title_fullStr Research on energy-saving factors adaptability of exterior envelopes of university teaching-office buildings under different climates (China) based on orthogonal design and EnergyPlus
title_full_unstemmed Research on energy-saving factors adaptability of exterior envelopes of university teaching-office buildings under different climates (China) based on orthogonal design and EnergyPlus
title_short Research on energy-saving factors adaptability of exterior envelopes of university teaching-office buildings under different climates (China) based on orthogonal design and EnergyPlus
title_sort research on energy-saving factors adaptability of exterior envelopes of university teaching-office buildings under different climates (china) based on orthogonal design and energyplus
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9396555/
https://www.ncbi.nlm.nih.gov/pubmed/36016524
http://dx.doi.org/10.1016/j.heliyon.2022.e10056
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