A parametric analysis of the influence of wind speed and direction on the thermal comfort performance of a Passive Downdraught Evaporative Cooling (PDEC) system – field measurements from a Saudi Arabian library

Alshenaifi, Mohammad; Sharples, Steve

doi:10.1088/1755-1315/329/1/012042

Cited by 3 publications

(2 citation statements)

References 3 publications

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“…The lower panel shows the WBT calculated from ERA5. In situ measurements of WBTs recorded a summer average of 18.8 • C [30]. We can see that the derived WBT here is slightly lower, probably due to the grid size (31 km), and is of 17 nights.…”

Section: Riyadhmentioning

confidence: 60%

Present and future land surface and wet bulb temperatures in the Arabian Peninsula

Safieddine

Clerbaux

Clarisse

et al. 2022

Environ. Res. Lett.

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The Arabian Peninsula exhibits extreme hot summers and has one of the world's largest population growth. We use satellite observations and reanalysis as well as climate model projections to analyze morning and evening land surface temperatures (LST), to refer to processes at the surface, and wet bulb temperatures (WBT) to measure human heat stress. We focus on three regions: The Persian Gulf and Gulf of Oman, the inland capital of Saudi Arabia, Riyadh and the irrigated agricultural region in Al-Jouf, Saudi Arabia. This study shows that the time of the day is important when studying LST and WBT, with current and future WBT higher in the early summer evenings. It also shows that the effect of humidity brought from waterbodies or through irrigation can significantly increase heat stress. Over the coasts of the Peninsula, humidity decreases LST but increases heat stress via WBT values higher than 25°C in the evening. Riyadh, located in the heart of the Peninsula has lower WBT of 15°C to 17.5°C and LST reaching 42.5°C. Irrigation in the Al-Jouf province decreases LST by up to 10° with respect to its surroundings, while it increases WBT by up to 2.5°. Climate projections over the Arabian Peninsula suggest that global efforts will determine the survivability in this region. The projected increase in LST and WBT approaches +6° and +4°C respectively in the Persian Gulf and Riyadh by the end of the century, posing significant risk on human survivability in the Peninsula unless strict climate mitigation takes place.

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Section: Riyadhmentioning

confidence: 60%

Present and future land surface and wet bulb temperatures in the Arabian Peninsula

Safieddine

Clerbaux

Clarisse

et al. 2022

Environ. Res. Lett.

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“…A case study in Thailand's hot and humid climate suggested that indoor temperature decreased by between 2 and 6.2 • C in a wooden structure cell room that adopted a solar chimney with a dampened roof [78]. For the very hot and dry climate, the results measured at a Saudi Arabian library, which utilized two cooling towers that contain wet pads, showed a significant passive cooling effect, as the indoor air temperature was cooled to 25.8 • C when the outdoor dry bulb temperature was 46 • C [79].…”

Section: Passive Cooling Methodsmentioning

confidence: 99%

A Review of Building Energy Retrofit Measures, Passive Design Strategies and Building Regulation for the Low Carbon Development of Existing Dwellings in the Hot Summer–Cold Winter Region of China

2023

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Retrofitting buildings to achieve improved levels of energy performance is a key strategy in the transition to a low-/net zero carbon future. In China, there has been an enormous growth in residential construction in recent decades in response to the country’s economic development and population growth. However, although these buildings are structurally solid and have long functional life spans, most have very poor thermal performance. Therefore, they would be very suitable for energy retrofitting. Because of the variety of retrofitting options, it is important to review the retrofit measures, regulations and possible outcomes to find effective, long-term solutions that strike a balance between the energy saved, the carbon emitted and the financial costs over a building’s lifetime. This paper reviews suitable retrofit measures for the hot summer–cold winter region of China, because this is an area with huge numbers of residential buildings that are suitable for energy retrofitting. The study explores the current conditions of targeted residential buildings, retrofit schemes, building regulations, and policy gaps towards achieving China’s 2060 carbon neutrality goal. The review indicates that current mandatory building energy regulations in this region are not ambitious enough to achieve a significantly lower carbon future, and one-step deep Passivhaus retrofit schemes are recommended to achieve decarbonization goals.

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Application of passive cooling design concept as an effort to reduce climate change

Munawaroh

Jajuli²,

Persada³

et al. 2022

The 2ND UNIVERSITAS LAMPUNG INTERNATIONAL CONFERENCE ON SCIENCE, TECHNOLOGY, AND ENVIRONMENT (ULICoSTE) 2021

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A parametric analysis of the influence of wind speed and direction on the thermal comfort performance of a Passive Downdraught Evaporative Cooling (PDEC) system – field measurements from a Saudi Arabian library

Cited by 3 publications

References 3 publications

Present and future land surface and wet bulb temperatures in the Arabian Peninsula

Present and future land surface and wet bulb temperatures in the Arabian Peninsula

A Review of Building Energy Retrofit Measures, Passive Design Strategies and Building Regulation for the Low Carbon Development of Existing Dwellings in the Hot Summer–Cold Winter Region of China

Application of passive cooling design concept as an effort to reduce climate change

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