Experimental study of the performance of porous materials to moderate the roof surface temperature by its evaporative cooling effect

Wanphen, Surakha; Nagano, Katsunori

doi:10.1016/j.buildenv.2008.03.012

Cited by 100 publications

(39 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This is why urban areas must be planned by implementing, where necessary, proper mitigation strategies. Some of these strategies, partially affecting each other, are: the use of high albedo surfaces [26][27][28][29][30], evaporation from porous surfaces [31,32], evaporation from ground-level water surfaces [33] and roof ponds [34], vegetated surfaces [35], rooftop gardens [36][37][38][39][40], and trees [27,41]. This paper, through the examination of a case study concerning the Cloister of San Pietro in Vincoli (placed right inside the Faculty of Engineering of the Sapienza University of Rome), evaluates how some of the mitigation strategies previously mentioned affect the microclimate and the outdoor thermal comfort.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Different Urban Microclimate Mitigation Strategies through a PMV Analysis

et al. 2015

View full text Add to dashboard Cite

Abstract:Outdoor thermal comfort affects the health of the people and the quality of life in urban areas. This is the reason why in the past few years different mitigation strategies for the microclimate have been studied and examined. These strategies depend on those passive factors characterizing the urban setting that are able to affect the values of local meteorological variables, as the limit surfaces of the urban space (parterre and façades of the buildings). This paper examines the Cloister by Giuliano da Sangallo, which is part of the Faculty of Engineering of Sapienza University of Rome. The case study compares the present configuration of the Cloister with four other configurations characterized by some vegetation and materials with a high albedo by taking into consideration the PMV (Predicted Mean Vote) model. Microclimatic variables are calculated through numerical simulations performed by the ENVI-met software. Such a comparison is performed during a typical summer day. While examining the results it can be noticed how the strategy presenting the best results is the one with some vegetation, whereas the materials with a high albedo improve the microclimate if applied on surfaces characterized by a high sky view factor. OPEN ACCESSSustainability 2015, 7 9013

show abstract

Section: Introductionmentioning

confidence: 99%

Evaluation of Different Urban Microclimate Mitigation Strategies through a PMV Analysis

et al. 2015

View full text Add to dashboard Cite

show abstract

“…It is usually made of a porous material with a large microscopic surface area for enhancing mass transfer between water and air. The selection of the wet media materials depends on the application, availability, cost, safety, and environmental impact [17]. Zhao et al [18] investigated various types of porous materials such as metal and plastic foams, zeolite and carbon fibres to be used as wet media for heat and mass transfer in evaporative cooling systems.…”

Section: Selection Of Wet Media Materialsmentioning

confidence: 99%

Computer modelling and experimental investigation of building integrated sub-wet bulb temperature evaporative cooling system

Boukhanouf

Alharbi

Ibrahim

et al. 2017

Applied Thermal Engineering

View full text Add to dashboard Cite

“…It is usually made of a porous material with large surface area and capacity to hold liquid water. According to Wanphen and Nagano [9], the selection of wet media materials is based on their effectiveness, availability, cost, safety, and environment factors. Zhao et al [10] investigated various types of porous materials such as metal and plastic foams, zeolite and carbon fibres to be used as wet media for heat and mass transfer in evaporative cooling systems.…”

Section: Wet Media Materialsmentioning

confidence: 99%

Investigation of an Evaporative Cooler for Buildings in Hot and Dry Climates

Boukhanouf¹,

Ibrahim²,

Alharbi³

et al. 2014

JOCET

View full text Add to dashboard Cite

Abstract-The paper presents a computer model and experimental results of a sub-wet bulb temperature evaporative cooling system for space cooling in buildings in hot and dry climates. The cooler uses porous ceramic materials as the wet media for water evaporation. Under selected test conditions of airflow dry bulb temperature of up to 45 o C and relative humidity of up to 50%, it was found that the supply air could be cooled to below the wet bulb temperature with a maximum cooling capacity of 280 W/m 2 of the wet ceramic surface area. It was also shown that the overall wet bulb effectiveness is greater than unity. This performance would make the system a potential alternative to conventional mechanical air conditioning systems in hot and dry regions.

show abstract

Experimental study of the performance of porous materials to moderate the roof surface temperature by its evaporative cooling effect

Cited by 100 publications

References 11 publications

Evaluation of Different Urban Microclimate Mitigation Strategies through a PMV Analysis

Evaluation of Different Urban Microclimate Mitigation Strategies through a PMV Analysis

Computer modelling and experimental investigation of building integrated sub-wet bulb temperature evaporative cooling system

Investigation of an Evaporative Cooler for Buildings in Hot and Dry Climates

Contact Info

Product

Resources

About