Low energy building design in high density urban cities

Hui, Siu Cheung

doi:10.1016/s0960-1481(01)00049-0

Cited by 127 publications

(55 citation statements)

References 7 publications

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“…However, the energy transition described in this paper is one of energy qualityfrom high quality (coal) to low (renewable) in terms of energy return. Some authors raise questions about urban densification in the context of an energy system based on low-gain renewable energy (Hagan 2012;Hui 2001;Tainter et al 2003). Research is needed to examine the relationship between urban density and renewable energy supply and to identify optimal urban planning models that would harmonise with more renewable and decentralised electricity supply configurations.…”

Section: Discussionmentioning

confidence: 99%

The challenge of adapting centralised electricity systems: peak demand and maladaptation in South East Queensland, Australia

et al. 2013

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South East Queensland's (SEQ's) centralised electricity system is under great pressure to adapt. Climate change is converging with socio-economic, demographic and technological changes to create a 'perfect storm' for the region's electricity system. Distribution networks are particularly affected, with these factors contributing to tremendous peak demand growth, about double the rate of growth in average demand in recent years. This paper reviews how Australia's electricity system is adapting to multiple drivers of peak electricity demand. We use sociotechnical transitions theory to understand the temporal interconnected social and technical dimensions of adaptation in this setting. Specifically, we present an historical narrative of the emergence of centralisation in Australia and outline the peak demand problem in SEQ and review adaptation options from the international literature. We also analyse the interactions between key social groups and their adaptation responses over the past decade. Our analysis shows that adaptation has become a contested process between supply-chain actors and end-users, each with different economic objectives, adaptation needs and capacities. The resulting adaptation dynamic that is emerging shows worrying signs of maladaptation. Implications for market governance and urban policy and research are discussed.

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Section: Discussionmentioning

confidence: 99%

The challenge of adapting centralised electricity systems: peak demand and maladaptation in South East Queensland, Australia

et al. 2013

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“…A theoretical modelling of energy demand for different urban morphologies based on four case study cities of London, Paris, Berlin, and Istanbul confirms this by finding potential for significant savings achievable in heat-demand through higher built densities [14]. Hui [15] cites four reasons as to why high density built-environment and cities are expected to be more efficient in their energy use: (i) the compactness and higher densities results in lower consumptions within the buildings; (ii) the reduced time of travel and communication characteristics are advantageous towards better transportation performance; (iii) the implementation of novel and emerging technologies is more easily achieved; and (iv) the wider options and possibility of mixing land use would contribute towards higher efficiencies.…”

Section: Introductionmentioning

confidence: 76%

“…The consumption of domestic gas has been indicated to largely address the space heating demand which constitutes about 70% of total domestic demand [46,47]. Heating, unlike other domestic demands, would only enjoy the effects of economies of scale when subject to more compact construction [12,15] which usually implies a smaller surface area thermodynamically and the more effective implementation of efficient heating networks. In an urban context, further increases in population can be taken as an indicator for increasing compactness of the built form and therefore higher consumption efficiencies, hence the sub-linear response of the domestic gas in the urban LAUs.…”

Section: Deviations From Expected Scalingmentioning

confidence: 99%

Urban and Rural—Population and Energy Consumption Dynamics in Local Authorities within England and Wales

Arbabi

Mayfield

2016

Buildings

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Abstract:The formulation of feasible and pragmatic policies that mitigate climate change would require a thorough understanding of the interconnectivity that exists between environment, energy, and the composition of our settlements both urban and rural. This study explores the patterns of energy consumption in England and Wales by investigating consumption behavior within domestic and transport sectors as a function of city characteristics, such as population, density, and density distribution for 346 Local Authority Units (LAU). Patterns observed linking energetic behavior of these LAUs to their respective population and area characteristics highlight some distinctly contrasting consumption behaviors within urban and rural zones. This provides an overview of the correlation between urban/rural status, population, and energy consumption and highlights points of interest for further research and policy intervention. The findings show that energy consumption across cities follows common power law scaling increasing sub-linearly with their population regardless of their urban/rural classification. However, when considering per capita and sector specific consumptions, decreasing per capita consumption patterns are observed for growing population densities within more uniformly populated urban LAUs. This is while rural and sparsely populated LAUs exhibit sharply different patterns for gas, electricity, and transport per capita consumption.

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“…Cities represent the highest concentration of energy use; they occupy 2% of the Earth's surface. However, their inhabitants consume about 75% of the world's resources [3]. A report showed that buildings account for the largest proportion of energy consumption, with as much as 32% of total final energy consumption and nearly 40% of primary energy consumption [4].…”

Section: Introductionmentioning

confidence: 99%

Inter-Building Effect and Its Relation with Highly Reflective Envelopes on Building Energy Use: Case Study for Cities of Japan

2017

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Abstract:The built environment with respect to building envelope designs and the surrounding micro-environment significantly affects building energy use. The influence of the inter-building effect (IBE) on building energy use cannot be ignored and thermal properties of building envelopes also largely affect building energy use. In order to evaluate the influence of IBE and its relation with highly-reflective (HR) building envelopes on building energy use, the building energy use under three simulated scenarios was quantitatively analyzed using the building energy optimization software "BEopt" for five cities of Japan. Analysis indicated that when the simulated building is neighbored by other buildings, an envelope coated with HR material is more effective than lowly-reflective (LR) material to reduce building energy use. A simulated single building without surrounding buildings and a LR envelope has the highest building energy use among the three simulated scenarios. This study also showed the influence of IBE on building energy savings is stronger in cities with lower latitudes.

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Low energy building design in high density urban cities

Cited by 127 publications

References 7 publications

The challenge of adapting centralised electricity systems: peak demand and maladaptation in South East Queensland, Australia

The challenge of adapting centralised electricity systems: peak demand and maladaptation in South East Queensland, Australia

Urban and Rural—Population and Energy Consumption Dynamics in Local Authorities within England and Wales

Inter-Building Effect and Its Relation with Highly Reflective Envelopes on Building Energy Use: Case Study for Cities of Japan

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