Effects of street geometries on building cooling demand in Nanjing, China

Deng, Jiyu; Wong, Nyuk Hien; Zheng, Xin

doi:10.1016/j.rser.2021.110862

Cited by 10 publications

(5 citation statements)

References 41 publications

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“…For sample 2, SVF inhibits the positive effect of IA on . Higher SVF has better ventilation conditions and reduces cooling demand of buildings (Deng et al, 2021 ).…”

Section: Discussionmentioning

confidence: 99%

Influence of built environment on building energy consumption: a case study in Nanjing, China

Wang

Yang

et al. 2023

Environ Dev Sustain

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Built environment plays a significant role in optimizing building energy consumption. However, few studies have explored the comprehensive effect between built environment metrics on building energy consumption. Thus, this study aims to explore interrelationships between built environment on building energy consumption focused on moderating effect. In this study, we established a built environment measure system from the perspective of land use and land cover, landscape structure and building configuration. This study explored the correlation between built environment and building energy consumption and analyzed the moderating effect of building configuration emphatically. Results show that: for integrated grids group, normalized difference vegetation index (NDVI) and modified normalized difference water index (MNDWI) have a positive influence and impervious area (IA) has a negative influence, with NDVI has the greatest impact. Building floor (BF), building coverage ratio (BCR) and aspect ratio can weaken the positive relationship between NDVI and energy use intensity of grid ( ). BCR weakens the positive effect of MNDWI on . The moderating effect of building configuration on EUI varies in the same grid group and among different grid groups. For sample 1, BCR inhibits the negative effect of mean perimeter–area ration (PARA-MN) on . For sample 2, BF promotes the negative effect of number of patches and land use richness index (R) on . And sky view factor inhibits the positive effect of IA on . This study reveals the pathways of built environment on building energy consumption. As a result, the keys of optimizing building energy consumption are the reasonable planning and optimization of the urban built environment of different land cover. Graphical abstract Supplementary Information The online version contains supplementary material available at 10.1007/s10668-023-02930-w.

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“…For sample 2, SVF inhibits the positive effect of IA on . Higher SVF has better ventilation conditions and reduces cooling demand of buildings (Deng et al, 2021 ).…”

Section: Discussionmentioning

confidence: 99%

Influence of built environment on building energy consumption: a case study in Nanjing, China

Wang

Yang

et al. 2023

Environ Dev Sustain

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“…It is important to consider how long one has lived in a given place, as well as the functional offer of the space, its attractions, and the level of aesthetics. Adaptation to climate change is also intrinsically linked to the localness of architectural and urban forms and traditions, and each climatic region requires a distinct urban form and configuration, which can contribute to making a city or neighborhood cooler or warmer, depending on the needs of their users [76,77].…”

Section: Discussionmentioning

confidence: 99%

The Thermal Comfort Problem in Public Space during the Climate Change Era Based on the Case Study of Selected Area in Lublin City in Poland

2022

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Noticeable climate change in recent years is reducing the comfort of public spaces in the urban environment, and is becoming an element of urban policies. The adaptation to climate change requires the development of new design guidelines for the development of public spaces. The appropriate definition of development density, choice of building materials, technologies, planting species, and the used directions is a challenge that depends on local conditions. A representative public space located in the area of a multi-family housing estate built in the second half of the 20th century in Lublin (Poland) was selected for the study. The space has undergone redevelopment twice in the last 10 years. The aim of the study was to determine to what extent the executed and designed changes actually improve the thermal comfort of users. Quantitative and qualitative indicators of the successive phases of the investment were analyzed in the context of projected climate change. The simulation was developed using the ENVI-met version 5.0 software. As a result of the changes made, there has been an improvement in usability and comfort. Five simulations were carried out for the warmest day of the year for one of the public spaces in the city of Lublin. The sensation of PET thermal comfort was investigated for people aged 35 and 75, as a particularly sensitive group. The obtained result proved that the elderly feel higher temperature rates than younger people. In one of the simulations, new plantings were proposed to improve the local microclimate. The material temperatures of paved surfaces were also investigated. The article shows how the local microclimate and people’s desire to stay in a given space can be improved with new tree planting.

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“…Predicting the impact of the urban form on the local microclimate, which affects not only outdoor thermal comfort but also building energy use, demand, and building thermal resilience, is one of the key issues throughout the urban design process. The analysis of the energy performance of buildings and their effects on the environment must increasingly consider the local climatic conditions, according to previous empirical and theoretical research [2][3][4]. Many researchers have focused on ways to measure the effect of urban microclimates on energy usage during the last 20 years.…”

Section: Introductionmentioning

confidence: 99%

“…The automated extraction and flow of simulation input parameters to various simulation engines, as well as the management or post-processing of their outputs, are all provided by Grasshopper without any direct link. In urban parametric research, this potent characteristic may be efficiently used to create many iterations [3], [11]In this regard, Ladybug tools have introduced new capabilities; these plugins offer a substantial collection of Grasshopper components interacting with various validated simulation engines (for example, Radiance for daylight, EnergyPlus for energy modelling, Open-FOAM for Computational Fluid Dynamics (CFD), and most recently Envi-MET for microclimatic modelling), which can now be easily coupled for sophisticated environmental evaluations. In this study, the authors use the capabilities of digital technologies to present a novel coupling approach between ENVI-met, UWG, and Energy Plus using Grasshopper for an efficient and automated microclimatic and energy performance evaluation.…”

Section: Introductionmentioning

confidence: 99%

Comparison of building energy performance in three urban sites using field measurements and modelling in Kayseri, Turkiye

Toren,

Sharmin

2023

J. Phys.: Conf. Ser.

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Despite the fact that the interrelationships between urban microclimates and energy demand have been recognised, there are not many processes that combine microclimatic boundary conditions to estimate energy consumption in parametric morphological investigations. Therefore, this paper will demonstrate a simple step-by-step methodology to incorporate the effect of urban microclimate on building cooling energy demand in semi-arid climatic areas. In this study, the combination of ENVI-met, Urban Weather Generator (UWG) and Rhino grasshopper are used to investigate the connection between microclimate and energy in the climatic environment of Kayseri. This coupling’s potential is investigated across compact high-rise, midrise and low-rise buildings, focusing on the cooling requirement on the hottest days. The comparative study shows how and to what extent urban geometry, building height in this case, contributes to modifying the magnitude of microclimate impact on building cooling performance.

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Effects of street geometries on building cooling demand in Nanjing, China

Cited by 10 publications

References 41 publications

Influence of built environment on building energy consumption: a case study in Nanjing, China

Influence of built environment on building energy consumption: a case study in Nanjing, China

The Thermal Comfort Problem in Public Space during the Climate Change Era Based on the Case Study of Selected Area in Lublin City in Poland

Comparison of building energy performance in three urban sites using field measurements and modelling in Kayseri, Turkiye

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