A parametric sensitivity analysis of the influence of urban form on domestic energy consumption for heating and cooling in a Mediterranean city

Vartholomaios, Aristotelis

doi:10.1016/j.scs.2016.09.006

Cited by 121 publications

(45 citation statements)

References 44 publications

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“…A result, this latter, in accordance with previous findings from Steadman et al [9] who empirically demonstrated, for the entire non-domestic building stock of London, the existence of a strong correlation between exposed building surface area (walls plus roof) and gas/electricity use. Similar results have been also recently confirmed by Vartholomaios [43] in geographical contexts with warmer climates such as Greece, where he identified a synergy at different urban densities between compactness and passive solar design. Switching from solar radiation to air quality, Cheshmehzangi [44] investigated, through computational fluid dynamics (CFD) modelling, forms that yield maximum air quality in urban micro environments.…”

Section: Previous Worksupporting

confidence: 85%

A compactness measure of sustainable building forms

D’Amico

Pomponi

2019

R. Soc. open sci.

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Global population growth and urbanization necessitate countless more buildings in this century, causing an unprecedented increase in energy consumption, greenhouse gas emissions, waste generation and resource use. It is imperative to achieve maximal efficiency in buildings quickly. The building envelope is a key element to address environmental concerns, as it is responsible for thermal transfers to the outdoors, causing energy demand and carbon emissions. It also requires cladding, thus consuming a significant amount of finite resources. This paper investigates the relationship between surface area and indoor space to unravel the sustainability of building forms. Firstly, we demonstrate what the optimal form is. Secondly, as a single definite form is of little use in practice, we develop a scale-independent metric to measure the degree of optimality of building forms and show its practical use. This newly developed metric can significantly help in early design stages, by quantifying how much a building form deviates from optimality and identifying the domain of alternative geometries to bring us closer to it. This compactness measure also represents a theoretical basis for further research, to explore how optimality changes when additional parameters are factored in. It therefore contributes to both theory and practice to support global efforts towards sustainable built environments.

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Section: Previous Worksupporting

confidence: 85%

A compactness measure of sustainable building forms

D’Amico

Pomponi

2019

R. Soc. open sci.

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“…There have been different energy quantifying methods-calculation-based [16,17], measurement-based [18,19] and hybrid quantification [20,21]-applied to evaluate the energy performance of existing buildings [22]. Also, several studies investigated the influence of users' behaviour on building energy performance with multiple approaches such as monitoring, questionnaire surveys and energy audits [23,24].…”

Section: Methodsmentioning

confidence: 99%

Understanding Residential Occupant Cooling Behaviour through Electricity Consumption in Warm-Humid Climate

et al. 2020

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According to the India Energy Security Scenario 2047, the number of residential air conditioner (A/C) units may increase seven-fold by 2037 as compared to 2017. Also, the related energy consumption might increase four times in the next two decades, according to India’s National Cooling Action Plan. Therefore, the study of occupant cooling behaviour is essential to reduce and manage the significant electricity demand, helping to formulate and implement climate-specific cooling policies, and to adopt low-energy and low-cost technologies at mass-market scale. The study aims to analyse residential electricity consumption in order to investigate occupant behaviour, especially for thermal comfort by using space cooling and mechanical ventilation technologies. Among the five climate zones in India, this study focuses on the occupant behaviour in a warm-humid climate using Auroville as a case study, where climate analysis of the past 30 years demonstrated progression towards unprecedented warmer weather in the last five years. In this study, electricity consumption data from 18 households (flats) were monitored for seven months (November 2018–June 2019). The study also elaborated the limitations faced while monitoring and proposed a data filling methodology to create a complete daily profile for analysing occupant behaviour through electricity consumption. The results of the data-driven approach demonstrated the characteristics and complexities in occupant behaviour and insight on the operation of different technologies to attain thermal comfort in residential buildings in an increasingly warming climate.

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“…Chen et al investigated the influence of block building density and height on the heat energy loss rate and found that there is synergistic potential between building density and height, with the effect of building density becoming obvious at relatively low building height conditions [32]. Vartholomaios studied parametric energy on an urban scale, and the results found that a compact perimeter urban block is a more efficient urban form than pavilions and slabs [33]. Simulation results from Kikegawa et al [34] confirmed that a decreased sky view factor can be an effective measure in reducing building cooling load.…”

Section: Literature Reviewmentioning

confidence: 99%

Impact Analysis of Urban Morphology on Residential District Heat Energy Demand and Microclimate Based on Field Measurement Data

Wang

et al. 2021

Sustainability

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In this work, we focus on investigating the relationship between urban morphology parameters and residential building space heating energy performance, comparing microclimate conditions of existing residential blocks with central heating supply. Firstly, a dataset composed of district morphological parameters that measured heat energy consumption was established. Then, effects of morphological indicators including cover ratio, average building height, and floor area ratio on building space heating energy efficiency were assessed specifically. Analysis results show that a larger floor area ratio induced a reduction in heating energy consumption density, the observed effect is notable at an initial increase of floor area ratio. Thirdly, the case study shows that the heating load of residential districts with a high built density is more sensitive to solar radiation. To further assess how and to what extent urban forms alter microclimates, on-site measurement investigated detailed changes in the thermal environment of selected residential districts before and after the operational stage of central heating supply. Analysis results demonstrate that heat energy delivered by a central heating supply could dampen the variations of local outdoor air temperatures, more notable for residential districts with a higher floor area ratio during the night period. Findings from this work would be useful for urban planners considering energy-efficient design practices.

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A parametric sensitivity analysis of the influence of urban form on domestic energy consumption for heating and cooling in a Mediterranean city

Cited by 121 publications

References 44 publications

A compactness measure of sustainable building forms

A compactness measure of sustainable building forms

Understanding Residential Occupant Cooling Behaviour through Electricity Consumption in Warm-Humid Climate

Impact Analysis of Urban Morphology on Residential District Heat Energy Demand and Microclimate Based on Field Measurement Data

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