Evaluating the effectiveness of outdoor evaporative cooling in a hot, arid climate

Dhariwal, Jay; Manandhar, Prajowal; Bande, Lindita; Marpu, Prashanth Reddy; Armstrong, Peter; Reinhart, Christoph

doi:10.1016/j.buildenv.2019.01.016

Cited by 24 publications

(6 citation statements)

References 25 publications

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“…Several studies have reported their validations for ENVI-met by comparing measured versus simulated results [38][39][40][41][42]. To validate the ENVI-met results of this study, measured and simulated air temperature datasets were compared.…”

Section: Validation Of the Envi-met Modelmentioning

confidence: 99%

Air pollution in a microclimate; the impact of different green barriers on the dispersion

Taleghani

Clark

Swan

et al. 2020

Science of The Total Environment

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This paper studies the impact of different green barriers on the dispersion of air pollution in a neighbourhood. The study was performed with reference to air quality conditions in Manchester, UK. Manchester experiences a high level of NO2. Measured results showed that the average annual concentration level in 2018 was very close to the limit defined by European Union legislation. Maximum and minimum NO2 concentrations occurred during the winter and summer, respectively. Simulations of the dispersion of air pollution in a hypothetical neighbourhood showed that NO2 level was decreased by the increase of air temperature during the simulated day. In four perturbation scenarios, hedges and trees with different heights were added to the neighbourhood as green barriers. Hedges increased the pollution level near the street at the pedestrian level as a result of the reduced wind speed. The simulations demonstrated that using the trees facilitated the dispersion of pollution.

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Section: Validation Of the Envi-met Modelmentioning

confidence: 99%

Air pollution in a microclimate; the impact of different green barriers on the dispersion

Taleghani

Clark

Swan

et al. 2020

Science of The Total Environment

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“…Another study evaluated the outdoor evaporative surfaces in an outdoor campus courtyard in Abu Dhabi. The results proved that the evaporative surfaces are capable of improving the OTC and reducing the UTCI significantly [18].…”

Section: Introductionmentioning

confidence: 80%

Outdoor Thermal Comfort Study on a District Level as Part of the Housing Programs in Abu Dhabi and Al Ain, United Arab Emirates

Bande

Adan

Young

et al. 2021

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The United Arab Emirates (UAE) has witnessed fast growth in urban development in the past four decades. A plan to build 7270 houses by 2021 has been initiated by the local authorities. Different local sustainability guidelines are being implemented, including the Public Realm Manual in Abu Dhabi. These local guidelines are tailored to consider the hot and arid climate of the UAE as well as the applied materials, the inclusion of greenery, shading devices, etc. Dubai, Abu Dhabi, and Al Ain are cities that have imposed the application of such guidelines. Additionally, the newly developed housing programs match the governmental plan. To understand the effect of these design programs on the outdoor thermal comfort (OTC), further investigations are necessary for each city. The most widely built prototype is detached villas, which result in untreated waste areas without shading or greenery. In the old local neighborhoods, Arabic houses were built next to each other to maximize the shading and to ease pedestrians’ walkability. This study aims to examine the districts where the housing programs are applied and to determine the most effective strategy to minimize the outdoor air temperatures and enhance walkability. The methodology implements the following processes in order: district analyses of the buildings as well as the externally applied materials, microclimate site measurements, ENVI-met (main software used) models of the current and future scenarios, results and recommendations. The strategies have different impacts in both cites due to the microclimate and other conditions.

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“…First, IoT technologies have enabled the assessment of thermal comfort on human activity and behavior in the built environment. For instance, in addition to environmental measurements, Wi-Fi connectivity data in outdoor spaces have been used to obtain real-time occupancy data and to explain outside dwelling patterns modified by thermal environments (Reinhart et al, 2017;Dhariwal et al, 2019). Using Wi-fi scanners in public courtyards, Reinhart et al (2017) recorded occupancy patterns over 10-month in addition to measurements of air temperature, relative humidity, wind speed and direction, and solar radiation.…”

Section: Outdoor Iot Sensing Of the Thermal Environmentmentioning

confidence: 99%

Transformational IoT sensing for air pollution and thermal exposures

Pantelic

Nazarian

Miller

et al. 2022

Front. Built Environ.

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Cities today encounter significant challenges pertaining to urbanization and population growth, resource availability, and climate change. Concurrently, unparalleled datasets are generated through Internet of Things (IoT) sensing implemented at urban, building, and personal scales that serve as a potential tool for understanding and overcoming these issues. Focusing on air pollution and thermal exposure challenges in cities, we reviewed and summarized the literature on IoT environmental sensing on urban, building, and human scales, presenting the first integrated assessment of IoT solutions from the data convergence perspective on all three scales. We identified that there is a lack of guidance on what to measure, where to measure, how frequently to measure, and standards for the acceptable measurement quality on all scales of application. The current literature review identified a significant disconnect between applications on each scale. Currently, the research primarily considers urban, building, and personal scale in isolation, leading to significant data underutilization. We addressed the scientific and technological challenges and opportunities related to data convergence across scales and detailed future directions of IoT sensing along with short- and long-term research and engineering needs. IoT application on a personal scale and integration of information on all scales opens up the possibility of developing personal thermal comfort and exposure models. The development of personal models is a vital promising area that offers significant advancements in understanding the relationship between environment and people that requires significant further research.

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Evaluating the effectiveness of outdoor evaporative cooling in a hot, arid climate

Cited by 24 publications

References 25 publications

Air pollution in a microclimate; the impact of different green barriers on the dispersion

Air pollution in a microclimate; the impact of different green barriers on the dispersion

Outdoor Thermal Comfort Study on a District Level as Part of the Housing Programs in Abu Dhabi and Al Ain, United Arab Emirates

Transformational IoT sensing for air pollution and thermal exposures

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