Impact of urban geometry on indoor air temperature and cooling energy consumption in traditional and formal urban environments

Date

2019-04-10

Advisors

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ISSN

DOI

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Publisher

Ecohouse Initative Ltd.

Type

Conference

Peer reviewed

Yes

Abstract

This study explores the effect of outdoor microclimatic environment on indoor conditions in a tropical warm-humid climate. An indoor air temperature and building energy performance analysis is carried out for the real case-study areas to examine the impact of urban geometry on building indoor conditions. The study incorporates microclimatic data from CFD, micro-climatic tool ENVI-met into building energy performance analysis using IES-VE. Findings reveal that diversity in urban geometry in deep urban canyons is helpful in reducing the indoor air temperature and cooling load. On average, cooling load in model rooms in the formal area is 21% higher for 1st floors (40% for top floors) compared to the corresponding rooms in the traditional area. In terms of solar gains, the difference was 30% for the 1st floors and 91% for the top floors, with rooms in the formal area having the higher ranges. Furthermore, the room air temperature in the traditional area was found to be 0.6-1.6 Deg C lower than those in the formal area.

Description

The file attached to this record is the author's final peer reviewed version. The Publisher's final version can be found by following the URI link.

Keywords

ENVI-met(V4), IES-VE, building energy performance, tropical climate, urban geometry

Citation

Sharmin, T. and Steemers, K. (2019) Impact of urban geometry on indoor air temperature and cooling energy consumption in traditional and formal urban environments. In: Roaf, S. and Finlayson, W. (Eds.) Proceedings of CATE 2019 - 1st International Conference on Comfort at the Extremes: Energy, Economy and Climate, Heriot Watt University, Dubai, UAE, 10-11 Apr, 2019. pp. 652 -666.

Rights

Research Institute