Envelope Deficiencies and Thermo-Hygrometric Challenges in Warehouse-Type Buildings in Subtropical Climates: A Case Study of a Nori Distribution Center DOI Creative Commons
Yue Xu, Hiroatsu Fukuda, Xindong Wei

et al.

Energies, Journal Year: 2024, Volume and Issue: 17(20), P. 5192 - 5192

Published: Oct. 18, 2024

Enhancing the energy efficiency and climate resilience of existing buildings is crucial amid growing environmental challenges. While extensive research has focused on non-residential buildings, studies thermo-hygrometric conditions in warehouse-type particularly subtropical climates, remain limited. This study investigated impact building envelope deficiencies indoor thermal moisture regulation at Nori Distribution Center. Using infrared imaging long-term monitoring, significant fluctuations were identified, primarily due to design construction deficiencies. Poor insulation, inadequate sealing, lack barriers contributed unstable temperature humidity. Seasonal analysis showed that during summer, median second-floor air reached 28.8 °C, peaking 39.2 with relative humidity exceeding 70% for 45% time. First-floor surpassed 72% condensation risk remains low year-round, it increases significantly infiltration through gaps envelope. recommends enhancing sealing envelope, upgrading insulation materials barriers, roof, optimizing HVAC system improve storage conditions. These findings offer valuable recommendations retrofitting climates resilience.

Language: Английский

Exploring natural ventilation strategies in Javanese vernacular houses for sustainable design DOI Creative Commons

Mohamad Muqoffa,

Suyitno Suyitno, Indri Yaningsih

et al.

Journal of Asian Architecture and Building Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 20

Published: Jan. 18, 2025

This study investigates natural ventilation strategies in Javanese vernacular houses to enhance sustainable building design tailored local climates and promote comfort environmental sustainability communities. It examines adaptations of these rural (Saradan) urban (Laweyan) contexts using a comprehensive methodology comprising document analysis, literature review, stakeholder interviews, case studies. Insights from classical texts architectural records inform traditional values principles related energy sustainability, supplemented by perspectives gathered through interviews with homeowners, architects, cultural experts on integrating into practices. The findings reveal that Saradan's areas, expansive layouts elements effectively facilitate ventilation, utilizing large courtyards strategically positioned windows optimize airflow thermal comfort. In contrast, Laweyan's setting employs compact designs smaller openings internal manage mitigate heat accumulation. illustrates how practices adapt contemporary contexts, supporting efficiency occupant well-being while reconciling technological advancements heritage preservation. offers insights for researchers, policymakers develop guidelines innovations across diverse climatic conditions explore their socio-economic impacts.

Language: Английский

Citations

1
Integrating Machine Learning and Genetic Algorithms to Optimize Building Energy and Thermal Efficiency Under Historical and Future Climate Scenarios DOI Open Access
Alireza Karimi, M. Mohajerani, Niloufar Alinasab

et al.

Sustainability, Journal Year: 2024, Volume and Issue: 16(21), P. 9324 - 9324

Published: Oct. 27, 2024

As the global energy demand rises and climate change creates more challenges, optimizing performance of non-residential buildings becomes essential. Traditional simulation-based optimization methods often fall short due to computational inefficiency their time-consuming nature, limiting practical application. This study introduces a new framework that integrates Bayesian optimization, XGBoost algorithms, multi-objective genetic algorithms (GA) enhance building metrics—total (TE), indoor overheating degree (IOD), predicted percentage dissatisfied (PPD)—for historical (2020), mid-future (2050), future (2080) scenarios. The employs IOD as key indicator (KPI) optimize design operation. While traditional indices such mean vote (PMV) thermal sensation (TSV) are widely used, they fail capture individual comfort variations dynamic nature conditions. addresses these gaps by providing comprehensive objective measure discomfort, quantifying both frequency severity events. Alongside IOD, use intensity (EUI) index is used assess consumption per unit area, critical insights into efficiency. integration with EUI PPD enhances overall assessment performance, creating precise holistic framework. combination ensures efficiency, comfort, occupant well-being optimized in tandem. By addressing significant gap existing methodologies, current approach combines advanced techniques modern simulation tools EnergyPlus, resulting efficient accurate model performance. reduces time Utilizing SHAP (SHapley Additive Explanations) analysis, this research identified factors influence metrics. Specifically, window-to-wall ratio (WWR) impacts TE increasing through higher heat gain cooling demand. Outdoor temperature (Tout) has complex effect on depending seasonal conditions, while (Tin) minor impact TE. For PPD, Tout major negative factor, indicating improved natural ventilation can reduce whereas Tin larger open areas exacerbate it. Regarding WWR significantly affect internal gains, windows temperatures contributing increased reduced comfort. also positive its varying over time. demonstrates conditions evolve, effects become pronounced, highlighting need for effective management envelopes HVAC systems.

Language: Английский

Citations

8
Terracing drives Chinese Loess Plateau toward carbon neutrality: Spatiotemporal interaction between land use transitions and SOC storage DOI
Yu Shi, Wei Wei

Journal of Environmental Management, Journal Year: 2025, Volume and Issue: 385, P. 125760 - 125760

Published: May 10, 2025

Language: Английский

Citations

0
Exploring the Opportunities and Gaps in the Transformation of Modern Rural Housing in Southern China to Net Zero Energy Buildings DOI Creative Commons
Dawei Xia,

Zonghan Chen,

Jialiang Guo

et al.

Buildings, Journal Year: 2024, Volume and Issue: 14(9), P. 2822 - 2822

Published: Sept. 7, 2024

This study explores modern residential buildings in rural areas of Wuhan and Guangzhou to assess the feasibility achieving net zero energy (NZEBs) through transformation existing southern China’s hot-summer–cold-winter hot-summer–warm-winter regions. Energy simulations under various climatic scenarios identify effective energy-saving measures, such as use photovoltaic power generation. The results highlight substantial renovation potential, with reductions approximately 85 kWh/m² (RCP2.6), 90 (RCP4.5), 115 (RCP8.5). Living patterns significantly influence use, especially more rooms, where gaps demand standards can reach 560.56 kWh. At monthly scale, different climate impact NZEBs, particularly RCP8.5, eight housing types fail meet requirements, six exceeding 200 kWh deficits largest deficit occurs June 2090 Guangzhou, reaching 592.53 kWh, while RCP2.6, only two rooms NZE. In summary, hot-summer cold-winter region, is higher but so solar yield. Therefore, most adverse RCP8.5 scenario, NZEBs are achievable for 9 months year, which 2 compared similar conditions. Even after transformation, new will face greater challenges future conditions, concentration pathways.

Language: Английский

Citations

1
Energy Efficiency in Subtropical Homes: Replacing Asbestos–Cement Roofs with Sustainable Alternatives DOI Creative Commons
Manuel Saba, Óscar E. Coronado-Hernández, Leydy K. Torres Gil

et al.

Buildings, Journal Year: 2024, Volume and Issue: 14(12), P. 4082 - 4082

Published: Dec. 23, 2024

This study evaluates the impact of building orientation, typology, and envelope characteristics on energy efficiency CO2 emissions in urban dwellings subtropical climate, with a focus Cartagena, Colombia. North-facing consistently demonstrate superior performance, achieving an average increase 4.27 ± 1.77% compared to south-facing counterparts. trend is less pronounced near equator due sun’s high zenith angle. Semi-detached homes exhibit 23.17 9.83% greater than corner houses, attributed reduced exterior wall exposure, which lowers demand by 2.16 0.74 kg CO2/m2 annually. Significant disparities are observed across socioeconomic strata; strata 3 4 show lowest (6.69 1.42 per year), while 5 6 have highest (10.48 differences construction quality glazing ratios. Roofing materials also play key role, thermoacoustic (TAC) roofs reducing up 5.80% lower asbestos–cement roofs. Furthermore, sandwich panels substantial potential, reductions 51.6% 1 2 median minimum saving 9.4% 6. These findings underscore importance integrating performance criteria into public housing policies, promoting practices that enhance sustainability reduce greenhouse gas improving occupant comfort property value.

Language: Английский

Citations

0
Envelope Deficiencies and Thermo-Hygrometric Challenges in Warehouse-Type Buildings in Subtropical Climates: A Case Study of a Nori Distribution Center DOI Creative Commons
Yue Xu, Hiroatsu Fukuda, Xindong Wei

et al.

Energies, Journal Year: 2024, Volume and Issue: 17(20), P. 5192 - 5192

Published: Oct. 18, 2024

Enhancing the energy efficiency and climate resilience of existing buildings is crucial amid growing environmental challenges. While extensive research has focused on non-residential buildings, studies thermo-hygrometric conditions in warehouse-type particularly subtropical climates, remain limited. This study investigated impact building envelope deficiencies indoor thermal moisture regulation at Nori Distribution Center. Using infrared imaging long-term monitoring, significant fluctuations were identified, primarily due to design construction deficiencies. Poor insulation, inadequate sealing, lack barriers contributed unstable temperature humidity. Seasonal analysis showed that during summer, median second-floor air reached 28.8 °C, peaking 39.2 with relative humidity exceeding 70% for 45% time. First-floor surpassed 72% condensation risk remains low year-round, it increases significantly infiltration through gaps envelope. recommends enhancing sealing envelope, upgrading insulation materials barriers, roof, optimizing HVAC system improve storage conditions. These findings offer valuable recommendations retrofitting climates resilience.

Language: Английский

Citations

0