Identifying key determinants for building energy analysis from urban building datasets

Abstract

Urban and building morphologies, usually determined at the design stage, have been proven as important determinants of energy usage at later operational stages.However, questions remain regarding the identification of the key determinants that influence urban building energy usage. To address this, in this study, an urban building dataset of 539 residential buildings and 153 public buildings was used to extract the building morphology factors as the determinants. A principal component analysis was performed to identify the key determinants for three buildings groups-residential buildings, residential blocks, and public buildings. The results show that the key determinants for residential buildings are their orientation, ratio of obstruction height to the canyon width from the south and west directions, shape coefficient, perimeterto-area ratio, and building aspect ratio. The key determinants for public buildings are similar to those for residential buildings with the exception of the ratio of the obstruction height to the canyon width from the south direction. The key determinants for residential blocks are the ratio of the obstruction height to the canyon width from the south and west directions, mass space proportion, building aspect ratio, and floor area ratio. The findings of this study provide insights into the key drivers of urban

Review on Appropriateness of Urban Heat Island Mitigation Technologies at Several Climates Condition

“…The albedo value has an important role in the thermal behaviour of pavement (pavement), soil surface, roof, and wall surface [43]. The cooling effect has a positive correlation with the intensity of solar radiation [29]. The vertical material of urban area cover influences the microclimate, especially in high-density vertical urban areas.…”

Determinación de variables edilicias presentes en morfologías del Área Metropolitana de Mendoza para la eficiencia energética

“…La morfología urbano-edilicia ha sido ampliamente analizada por sus efectos sobre el comportamiento energético edilicio, disponibilidad solar en fachadas norte y techos, ganancias solares, microclima urbano, confort térmico exterior, dirección y velocidad del viento, contaminantes y calidad del aire (Aboelata, 2020;Bakarman, & Chang, 2015;Bourbia, & Awbi, 2004;Huang et al, 2021;Martinelli, & Matzarakis, 2017;Mesa et al, 2011;Ruggeri et al, 2020;Schulte et al, 2015;Shareef, & Abu-Hijleh, 2020;Vartholomaios, 2017). La temática es de impacto para planificadores y diseñadores preocupados no solo por la calefacción de espacios activa y pasiva, calentamiento de agua para uso doméstico y generación fotovoltaica, sino también por la rehabilitación profunda del parque edilicio Colucci et al, 2017;Huang, & Li, 2017;Li et al 2020b;Savvides, & Vassiliades, 2017;Sharifi, 2019;Shi et al, 2021;Wolff, 2014;Zhang et al 2019).…”

Fine-Granularity Urban Microclimate Monitoring Using Wearable Multi-Source Sensors

“…The wireless, wearable, mobile, crowd-sourced and multi-sourced environmental monitoring system based on the BeiDou Navigation Satellite System proposed in this paper solves the problem of the monitoring range, because the traditional monitoring system is not wide enough. At the same time, typical regional pollutants are taken into account when the environmental evaluation method is formulated [15], which greatly improves people's dynamic, real-time, comprehensive and detailed ability for monitoring the urban environment.…”