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Evaluation of thermal resilience to overheating for an educational building in future heatwave scenarios
Airtight and highly insulated buildings are subjected to overheating risks, even in moderate climates, due to unforeseeable events like frequent heatwaves and power outages. Educational buildings share a major portion of building stocks and a large percentage of the energy is expended in maintaining thermal comfort in these buildings. Overheating risks in educational buildings can lead to heat-stress and negatively impact the health conditions and also cognitive performance of the occupants. In the light of increasing severity and longevity of heat waves in future climate scenarios, and associated power outages occurring during the heatwaves, measures to reduce overheating risk while limiting the cooling energy is gaining importance. Since the performance of existing buildings are not guaranteed during events like heatwaves, power outages, it is crucial for these buildings to be resilient to overheating. (Building) resilience is a method to deal with these uncertainties and is stated as 'an ability of the building to withstand disruptions; and to maintain the capacity to adapt, learn and transform'. The focus of this paper is to evaluate thermal resilience for two test lecture equipped with low-energy cooling strategies like natural night ventilation (NNV) and indirect evaporative cooling (IEC) rooms, by dynamic Building Energy Simulations (BES). To assess the thermal resilience to overheating three different heatwaves (HW) files (intense, severe, and longest) for 3 future scenarios (1) Historical (2010-2020), (2) mid-term (2041-2060) and (3) long-term (2081-2100) and a 24h power outage (PO)scenario was simulated. Benchmarking was done with a base case - Typical Meteorological year(TMY) with no power outage. The heatwave files were developed adopting the methodology proposed by the 'Weather Data Task Force' of International Energy Agency Energy in Buildings and Communities Programme (IEA EBC) Annex 80 'Resilient Cooling of Buildings'. This study shows, IEC has high to moderate recovery capacity in TMY period and ...
Evaluation of thermal resilience to overheating for an educational building in future heatwave scenarios
Airtight and highly insulated buildings are subjected to overheating risks, even in moderate climates, due to unforeseeable events like frequent heatwaves and power outages. Educational buildings share a major portion of building stocks and a large percentage of the energy is expended in maintaining thermal comfort in these buildings. Overheating risks in educational buildings can lead to heat-stress and negatively impact the health conditions and also cognitive performance of the occupants. In the light of increasing severity and longevity of heat waves in future climate scenarios, and associated power outages occurring during the heatwaves, measures to reduce overheating risk while limiting the cooling energy is gaining importance. Since the performance of existing buildings are not guaranteed during events like heatwaves, power outages, it is crucial for these buildings to be resilient to overheating. (Building) resilience is a method to deal with these uncertainties and is stated as 'an ability of the building to withstand disruptions; and to maintain the capacity to adapt, learn and transform'. The focus of this paper is to evaluate thermal resilience for two test lecture equipped with low-energy cooling strategies like natural night ventilation (NNV) and indirect evaporative cooling (IEC) rooms, by dynamic Building Energy Simulations (BES). To assess the thermal resilience to overheating three different heatwaves (HW) files (intense, severe, and longest) for 3 future scenarios (1) Historical (2010-2020), (2) mid-term (2041-2060) and (3) long-term (2081-2100) and a 24h power outage (PO)scenario was simulated. Benchmarking was done with a base case - Typical Meteorological year(TMY) with no power outage. The heatwave files were developed adopting the methodology proposed by the 'Weather Data Task Force' of International Energy Agency Energy in Buildings and Communities Programme (IEA EBC) Annex 80 'Resilient Cooling of Buildings'. This study shows, IEC has high to moderate recovery capacity in TMY period and ...
Evaluation of thermal resilience to overheating for an educational building in future heatwave scenarios
Sengupta, Abantika (Autor:in) / Breesch, Hilde (Autor:in) / Al Assaad, Douaa (Autor:in) / Steeman, Marijke (Autor:in)
01.01.2023
INTERNATIONAL JOURNAL OF VENTILATION ; ISSN: 1473-3315 ; ISSN: 2044-4044
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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