Solar radiation and urban design for hot climates

Gupta, Vinod K.

doi:10.1068/b110435

Cited by 35 publications

(14 citation statements)

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“…In an earlier paper (Gupta, 1984b), a method for comparing the solar efficiency of archetypal building clusters called pavilion, court and street, was presented. The method used to determine relative efficiency was similar to that used by Knowles (1974), and it depended upon the calculation of 'solar exposure', a quantity which takes into account the area of irradiated surfaces of buildings as well as the variations in intensity of direct and diffuse solar radiation incident on each surface in the building cluster.…”

Section: Clustersmentioning

confidence: 99%

Thermal Efficiency of Building Clusters: An Index for Non Air-Conditioned Buildings in Hot Climates

Gupta

1987

Energy and Urban Built Form

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Section: Clustersmentioning

confidence: 99%

Thermal Efficiency of Building Clusters: An Index for Non Air-Conditioned Buildings in Hot Climates

Gupta

1987

Energy and Urban Built Form

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“…That work, which examines urban areas, concentrates on harsh climates and usually considers problems with daytime heating (rather than nighttime cooling). The role of the sun is treated as paramount in these studies and the extent to which a building intercepts direct solar 196 GERALD MILLS radiation (e.g., Knowles, 1974;Gupta, 1984) is taken as measure of heat gain. However, there is little quantitative assessment of the effect of this interception on indoor air temperatures.…”

Section: Introductionmentioning

confidence: 99%

Building Density and Interior Building Temperatures: A Physical Modeling Experiment

Mills

1997

Physical Geography

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The effect of building density on the interior temperatures of buildings is explored using scaled physical models. The urban canopy layer is modeled as a singlecube structure surrounded by a wall that represents neighboring structures. Each physical model was constructed of plywood and consisted of a cube 200 mm in height, enclosed by a wall 200 mm in height. Four models were constructed corresponding to height/width ratios (H/W) of 4, 2,1, and 0.5 and placed at an exposed site located at 34°N. The interior air temperature of each cube, direct and diffuse solar radiation on a horizontal surface, and ambient air temperature and wind velocity were measured over a period from late November 1996 to early June 1997. To extract the influence of building density, air tem peratures were compared against those measured in the model representing a H/W of 1. The results show that nighttime cooling is primarily a function of building density, but that daytime heating depends on the interaction of density with changing model-sun relation ships. [Key words: urban canopy layer, building air temperature, building density, physi cal model.]

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“…Analyses on buildings form archetypes have been performed since the '60s, especially for pointing out the relationship between urban form and land use [5,6]. In these years many researches were focused on evaluating the environmental performance of the urban texture, f.i.…”

Section: Urban Morphologymentioning

confidence: 99%

“…Land use [5,6] Environment, climate, thermal comfort [7,8,9,10,11,12,13,14,15] Daylight availability and solar potential [7,15,16,17,18,19,20,21] Energy consumption in: mobility [16,22,23,24,25,26,27] buildings [15,27,28,29,30] In these analyses usually the city is dived into building blocks/textures with group of private/public buildings, open spaces and streets. The division allows defining the urban metric [31] which is extremely useful to define parameters for measuring physical quantities related to environmental monitoring [12] and for energy efficiency analysis [32].…”

Section: Application Field Main Referencesmentioning

confidence: 99%

The Role of Urban Form and Socio-Economic Variables for Extimating the Building Energy Savings Potential at the Urban Scale

Delmastro¹,

Mutani²,

Schranz³

et al. 2015

IJHT

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In the past, to make the city liveable, the urban morphology has always be considered taking into account the climate, the buildings' density and characteristics, the type of inhabitants and their social condition. On the contrary, recently in the urban planning process the morphological aspects are no more included even if they influence the energy consumption, the thermal comfort of the urban spaces and the district air quality. Moreover, the socio-economic conditions of inhabitants might strongly affect the lifestyle choice and behavior of building occupants and thus, the probability of success of urban planning measures for energy conservation. The present study aims to: 1) identify the correlation between thermal energy consumption for space heating and urban variables and 2) investigate the role of socio-economic variables in energy savings potential. The city of Turin is suitable for these analyses because it is characterized by different urban forms and urban spaces and by various characteristics of the population. By using a GIS tool, the district 3, chosen as a case study, has been divided into different urban textures considering their urban and socio-economic characteristics. The results of this study show that the measured energy consumption of single building depends on the physical building features (f.i. thermal insulation level, the compactness, the energy system efficiency etc.) but also on the urban form and the streets' orientation. Another important result is that the social and economic situation of inhabitants has a relevant role in the success of sustainable policies. These conclusions may support urban planners in the definition of new urban areas with some "preliminary" energy savings measures at no cost and in formulating tailored policies according to socio-economic conditions from district to district.

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Solar radiation and urban design for hot climates

Cited by 35 publications

References 0 publications

Thermal Efficiency of Building Clusters: An Index for Non Air-Conditioned Buildings in Hot Climates

Thermal Efficiency of Building Clusters: An Index for Non Air-Conditioned Buildings in Hot Climates

Building Density and Interior Building Temperatures: A Physical Modeling Experiment

The Role of Urban Form and Socio-Economic Variables for Extimating the Building Energy Savings Potential at the Urban Scale

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