Author
Renganathan Giridharan
Other affiliations: Brunel University London, University of Hong Kong, Loughborough University
Bio: Renganathan Giridharan is an academic researcher from University of Kent. The author has contributed to research in topics: Urban heat island & Thermal comfort. The author has an hindex of 17, co-authored 33 publications receiving 1814 citations. Previous affiliations of Renganathan Giridharan include Brunel University London & University of Hong Kong.
Papers
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TL;DR: In this paper, the potential of physical characteristics in mitigating the urban heat island intensity (UHI) in London during summer was investigated using six on-site variables namely aspect ratio, surface albedo, plan density ratio, green density ratio and thermal mass.
294 citations
TL;DR: In this article, the authors investigated the impact of design-related variables on outdoor micro-level daytime heat island effect in residential developments in Hong Kong and found that energy efficient designs can be achieved by manipulating surface albedo, sky view factor and total height to floor area ratio (building massing) while maximizing cross ventilation.
279 citations
TL;DR: In this paper, the authors extend this work to 6 months enveloping 3 seasons and 7 different locations within the coastal area, revealing seasonal changes are in general more influential on UHI than changes due to geographical characteristics.
225 citations
TL;DR: In this paper, the authors focus on internal temperatures during the day and at night in wards within the tower building at Addenbrooke's hospital, which has a hybrid ventilation strategy.
149 citations
TL;DR: In this paper, the post-print version of the final paper published in Journal of Energy and Buildings is available from the link below, where the published article is available as a reference.
148 citations
Cited by
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TL;DR: Reading a book as this basics of qualitative research grounded theory procedures and techniques and other references can enrich your life quality.
13,415 citations
TL;DR: Wang et al. as discussed by the authors used Landsat TM and ETM+ images from 1990 to 2000 in the Pearl River Delta (PRD) to retrieve the brightness temperatures and land use/cover types.
1,307 citations
TL;DR: In this article, the authors present the state of the art on both the above technologies, when applied in the city scale, and present the definition of the limits, the boundaries and the conditions under which the considered technologies reach their better performance in a synthetic way.
1,204 citations
TL;DR: In this paper, a review of the literature available in this area includes the latest research approaches, concepts, methodologies, latest investigation tools and mitigation measures and concluded that the future research should be focused on design and planning parameters for reducing the effects of urban heat island and ultimately living in a better environment.
Abstract: Urban Heat Island (UHI) is considered as one of the major problems in the 21st century posed to human beings as a result of urbanization and industrialization of human civilization. The large amount of heat generated from urban structures, as they consume and re-radiate solar radiations, and from the anthropogenic heat sources are the main causes of UHI. The two heat sources increase the temperatures of an urban area as compared to its surroundings, which is known as Urban Heat Island Intensity (UHII). The problem is even worse in cities or metropolises with large population and extensive economic activities. The estimated three billion people living in the urban areas in the world are directly exposed to the problem, which will be increased significantly in the near future. Due to the severity of the problem, vast research effort has been dedicated and a wide range of literature is available for the subject. The literature available in this area includes the latest research approaches, concepts, methodologies, latest investigation tools and mitigation measures. This study was carried out to review and summarize this research area through an investigation of the most important feature of UHI. It was concluded that the heat re-radiated by the urban structures plays the most important role which should be investigated in details to study urban heating especially the UHI. It was also concluded that the future research should be focused on design and planning parameters for reducing the effects of urban heat island and ultimately living in a better environment.
1,160 citations
TL;DR: In this article, the thermal effect of covering the building envelope with vegetation on the microclimate in the built environment, for various climates and urban canyon geometries, is discussed.
803 citations