DETERMINANTS OF UNIVERSITY BUILDING OPERATION ENERGY CONSUMPTION THROUGH A CASE STUDY

Journal of Green Building, Год журнала: 2025, Номер 20(1), С. 153 - 182

Опубликована: Янв. 1, 2025

ABSTRACT With the expansion of public buildings in China and rise carbon emission from energy consumption, it has become essential to improve efficiency building operation consumption reduce emissions. However, is not clear how optimally a holistic perspective. This study identifies factors impacting by reviewing existing literature establishes framework for illustrating interactions between identified factors. The validated through case university Beijing methods direct observation, instrument measurement, scrutiny building's records, simulating, fitting. demonstrates among factors, which include social economic technology environmental occupant behavior patterns, equipment. results reveal regarding electricity utilization intensity, illumination building, behavior. It was found that indoor intensities are affected WWR, orientation room, distance window, there functional relationship intensity window. outcomes have significant contributions body knowledge on buildings. Theoretically, proposed can help with understanding relationships different affecting operations. Practically, measures arising study's empirical evidence, using automation system, installing solar panels potential generate 31.6% total consumed energy, improving occupants’ habits impact saving 18.8% classrooms, optimize efficiency.

Язык: Английский

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Multi-condition building decarbonization using deep reinforcement learning and large language model

Energy and Buildings, Год журнала: 2025, Номер unknown, С. 115810 - 115810

Опубликована: Май 1, 2025

Язык: Английский

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Energy Consumption and Carbon Emissions of Nearly Zero-Energy Buildings in Hot Summer and Cold Winter Zones of China

Sustainability, Год журнала: 2023, Номер 15(14), С. 11453 - 11453

Опубликована: Июль 24, 2023

Issues of energy efficiency and sustainability in buildings are gaining increasing attention the context “3060” dual-carbon initiative. In recent years, nearly zero-energy (nZEBs) have emerged as a potentially viable solution to challenges crisis building sector, it is important study factors influencing their consumption carbon emissions. However, existing research lacks analyses multifactor interactions, problem high has not been sufficiently addressed. Taking typical residential Yangtze River basin subject, this study, jointly funded by University Nottingham Hubei Technology, proposes hybrid approach that combines simulation orthogonal experiments investigate pertaining buildings, people, environment identify key explore emission characteristics hot summer cold winter (HSCW) zones. Our findings reveal following: (1) The use renewable sources, such solar photovoltaic power generation water, systems ground-source heat pumps, operation phase baseline can result 61.76% energy-saving 71% utilization rate. (2) To more easily meet requirements nZEB standards, recommended keep KE within range 0.20–0.30 W/(m2·K), KR 0.15–0.20 VT 0.6–0.7 h−1. This will help critical affecting provide valuable reference for HSCW

Язык: Английский

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Feasibility and performance analysis of a net-zero energy residential building in tropical climates: A case of Congo-Brazzaville

Indoor and Built Environment, Год журнала: 2024, Номер 33(6), С. 1128 - 1147

Опубликована: Март 16, 2024

Current building techniques in developing countries have become extremely critical. The net-zero energy concept has emerged as an essential strategy for minimising consumption and greenhouse gas emissions. However, its implementation, particularly countries, remains a critical challenge. purpose of this work is to assess the feasibility achieving by combining energy-efficient design practices renewable systems under climatic conditions Republic Congo. To achieve stipulated objectives, DesignBuilder software was utilised modelling, load assessment multiobjective optimisation efficiency measures, multicriteria carried out using HOMER tool. results showed that implementation measures resulted 39.15% savings, 43.45% thermal savings 55.68% discomfort hours reduction. Furthermore, system can provide 100% building’s total 3341.84 kgCO 2 eq/year. system’s levelised cost estimated at 0.256 $/kWh, with net present $20,231, while overall life cycle calculated 188.91 $/m .

Язык: Английский

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Cost-benefit analysis of a hydro-solar microsystem with Archimedean screw hydro turbine sized for a prosumer building

Renewable Energy, Год журнала: 2024, Номер 226, С. 120402 - 120402

Опубликована: Март 30, 2024

Язык: Английский

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Standards and legal regulations regarding sustainable construction

Elsevier eBooks, Год журнала: 2024, Номер unknown, С. 117 - 130

Опубликована: Янв. 1, 2024

Язык: Английский

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Technical and Economic Feasibility of Multi-Family Social Housing and Nearly Zero-Energy Buildings in Southern Brazil

Sustainability, Год журнала: 2024, Номер 16(7), С. 2608 - 2608

Опубликована: Март 22, 2024

Several studies have shown that social housing in Brazil usually fails to provide thermal comfort its occupants. This study aimed define energy efficiency measures for a representative model to, together with local production of renewable energy, achieve the nearly zero-energy target. The performance and were evaluated using computer simulation, considering southern Brazilian climatic context. An analysis economic feasibility was also carried out. results showed on envelope (EPS gypsum board external walls rock wall roof) solar water heating system reduced 13.1% annual primary consumption comparison model. Considering generation building, electricity 38,777.6 kWh/year lower than (57.0% reduction). indicated positive net present value payback six years. It concluded an on-site made it possible reach target

Язык: Английский

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Regeneration diagnosis for the service lifespans of residential buildings on a circular economy perspective

Energy and Buildings, Год журнала: 2024, Номер 319, С. 114536 - 114536

Опубликована: Сен. 1, 2024

Язык: Английский

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Simulação do impacto de fotobiorreatores fechados como elementos de sombreamento de aberturas

Revista Científica ANAP Brasil, Год журнала: 2024, Номер 17(43)

Опубликована: Июль 21, 2024

No contexto das mudanças climáticas e da Agenda 2030 Organizações Unidas (ONU), a eficiência energética em edificações é um tema essencial na redução do consumo de energia emissões gases efeito estufa. O objetivo deste estudo simular o impacto fotobiorreatores como elementos sombreamento aberturas edifício educacional no sul Brasil, através modelo digital construção software luminotécnico, avaliando disponibilidade iluminação natural as possibilidades aplicação, etapa integrante prototipagem dos fotobiorreatores. Três cenários foram elaborados para verificação estratégias proteção solar: primeiro cenário sem utilização proteções, segundo utilizando os paralelos às esquadrias, uma segunda esquadria terceiro brises-soleil, ângulo relação esquadrias. Os brises podem contribuir carga térmica não seriam completamente opacos, portanto, prejudicariam incidência luz ambiente. Como estratégia eficiência, solar permitirá maior pelo condicionamento térmico, se comparado ao desligamento luminárias próximas janelas por aproveitamento natural. A aplicação poderá ter impactos positivos edificação, além permitir sequestro carbono, integrando conceito Net Zero Carbon Building.

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Utilização de fotobiorreatores em fachadas para mitigação e sequestro de carbono

Encontro Nacional de Conforto no Ambiente Construído e Encontro Latino-Americano de Conforto no Ambiente Construído, Год журнала: 2023, Номер unknown

Опубликована: Окт. 26, 2023

A pesquisa a respeito da aplicação de microalgas em edifícios está relacionada com um projeto mais amplo, compreendendo os aspectos relacionados ao conforto ambiental dos espaços acadêmicos e o consumo energia geração fotovoltaica on-grid, bem como investigação alternativas para melhoria do desempenho construtivo das envoltórias edificações. Objetiva-se, assim, conceitos interdisciplinares envolvendo Arquitetura Biotecnologia, que se denomina Black/Dark Ecologies “novo” interesse investigativo fim explorar uma “nova” natureza, não apenas espaço arquitetônico, mas sim enfoque amplo. Esta relação materializa na utilização fotobiorreatores fechados microalgas, instalados nas fachadas edificações uso educacional. O presente trabalho apresenta recorte metodológico pesquisa, baseado revisão bibliométrica, estudos casos propostas modelo específico. Além térmico energético, estas estratégias permitirão sequestro dióxido carbono outros emissores contribuem processo mudanças climáticas; coincide assim discussões cenários 2050 redução emissões, pautas discutidas recente COP-27.

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