Geo-climatic potential of direct evaporative cooling in the Mediterranean Region: A comparison of key performance indicators

Chiesa, Giacomo; Huberman, Nora; Pearlmutter, David

doi:10.1016/j.buildenv.2019.01.059

Cited by 22 publications

(3 citation statements)

References 25 publications

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“…Such as already mentioned, these analyses refer to early-design purposes and do not include the specific effect of a building detailed configurations, aiming at suggestion-first design choices rather than validating or optimizing system dimensioning in advanced design steps. For the purpose of this paper, the original version of the Olgyay bioclimatic tool, which is available in the Grasshopper plug-in, Ladybug [80], was assumed. In particular, among the available bioclimatic strategies that may be evaluated with this tool, the following were assumed for this paper: the hours of comfort driven by passive solar4 heating, evaporative cooling, natural ventilation (ventilative cooling), and thermal mass plus night ventilation.…”

Section: Bioclimatic Chartsmentioning

confidence: 99%

“…The third climate analysis focused on solar radiation exposure, a general indicator for analyzing solar access of specific buildings. The sunlight hour analysis tool in Grasshopper plug-in Ladybug [80] can calculate the number of hours of direct sunlight received by a specific surface, i.e., a façade, using the apparent sun position defined by site geographic coordinates day of the year, and hour of the day. The tool also includes the effect of obstacles.…”

Section: Surface Exposure To Direct Solar Radiation (Hours)mentioning

confidence: 99%

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Including Urban Heat Island in Bioclimatic Early-Design Phases: A Simplified Methodology and Sample Applications

Chiesa

2021

Sustainability

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Urban heat island and urban-driven climate variations are recognized issues and may considerably affect the local climatic potential of free-running technologies. Nevertheless, green design and bioclimatic early-design analyses are generally based on typical rural climate data, without including urban effects. This paper aims to define a simple approach to considering urban shapes and expected effects on local bioclimatic potential indicators to support early-design choices. Furthermore, the proposed approach is based on simplifying urban shapes to simplify analyses in early-design phases. The proposed approach was applied to a sample location (Turin, temperate climate) and five other climate conditions representative of Eurasian climates. The results show that the inclusion of the urban climate dimension considerably reduced rural HDD (heating degree-days) from 10% to 30% and increased CDD (cooling degree-days) from 70% to 95%. The results reveal the importance of including the urban climate dimension in early-design phases, such as building programming in which specific design actions are not yet defined, to support the correct definition of early-design bioclimatic analyses.

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Section: Bioclimatic Chartsmentioning

confidence: 99%

Section: Surface Exposure To Direct Solar Radiation (Hours)mentioning

confidence: 99%

Including Urban Heat Island in Bioclimatic Early-Design Phases: A Simplified Methodology and Sample Applications

Chiesa

2021

Sustainability

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“…Several authors have focused on the Mediterranean region. Chiesa et al (2019) targeted different cities identified through the Köppen-Geiger climate classification as BSh, BSk, BWh, Cfa, Csa, and Dfb. They applied three methods to evaluate the geo-climatic applicability of DEC, which displayed significant potential to reduce the number of hours of discomfort during the cooling season, but which differed noticeably between climates.…”

Section: Climate Applicabilitymentioning

confidence: 99%

Direct evaporative cooling from wetted surfaces: Challenges for a clean air conditioning solution

Tejero‐González

Franco-Salas

2021

WIREs Energy & Environment

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Evaporative cooling has a major role to play in fighting climate change and in achieving a low‐carbon economy. As it helps to reduce energy demand for air conditioning, it is gaining attention in terms of improving energy efficiency in buildings. Evaporative cooling from wetted media can enhance water–air contact, thereby improving heat and mass transfer further and avoiding aerosols. Wetted media are commonly called evaporative cooling pads and are widely used in greenhouses, intensive livestock farming, and industrial facilities. However, a deep understanding of evaporative cooling pad performance can enhance their application to indoor occupied spaces such as residential or commercial cooling, or in hybrid air conditioning systems. Most studies analyze pad performance mainly in terms of pressure drop and saturation effectiveness. However, some studies propose alternative cooling efficiency parameters and others provide insights into key aspects such as power requirements and the coefficient of performance, water consumption, risk of water entrainment, material decay, and air quality, as well as the effect of water temperature and salinity, solar radiation, or wind speed. Existing results on these less studied performance issues are reviewed, and we identify the gaps in the literature in addition to highlighting the main challenges encountered, in an effort to guide future researchers in the field and enhance the application of direct evaporative cooling. This article is categorized under: Energy Efficiency > Systems and Infrastructure Energy Systems Analysis > Systems and Infrastructure

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Platform—A Space for Project Design and an Interface Between Reality and Virtuality

Chiesa

2019

Technological Paradigms and Digital Eras

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Geo-climatic potential of direct evaporative cooling in the Mediterranean Region: A comparison of key performance indicators

Cited by 22 publications

References 25 publications

Including Urban Heat Island in Bioclimatic Early-Design Phases: A Simplified Methodology and Sample Applications

Including Urban Heat Island in Bioclimatic Early-Design Phases: A Simplified Methodology and Sample Applications

Direct evaporative cooling from wetted surfaces: Challenges for a clean air conditioning solution

Platform—A Space for Project Design and an Interface Between Reality and Virtuality

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