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How to Stay Cool Without Fossil Fuel: A Passive Low-Tech Cooler for Extreme Climates
Malmö University, Faculty of Culture and Society (KS), Department of Urban Studies (US).ORCID iD: 0000-0001-7754-0927
Aalborg University, Aalborg, Denmark.
Aalborg University, Aalborg, Denmark.
2023 (English)In: Design for Climate Adaptation: Proceedings of the UIA World Congress of Architects Copenhagen 2023, Springer, 2023, p. 733-743Conference paper, Published paper (Refereed)
Abstract [en]

Cooling is becoming an essential commodity in our modern lives. Cooling is not just important for human comfort but also essential for prolonging the shelf life and quality of almost everything from food to vaccines. The need for cooling is increasing due to the impacts of climate change. In the building sector, specifically housing, we still rely mainly on high-tech air-conditioning systems which normally run-on fossil fuel energy for electricity. The increasing demand for cooling is driving up the increase in emissions and pollution. Global warming is becoming inevitable, and the world will need to expand access to cooling technologies while enforcing energy efficiency, low-carbon energy, and phasing out harmful power sources. Despite the beneficial innovations in the energy sector are unlocking, cooling is still energy abusive. This “Stay Cool” project intends to make cooling systems more environmentally friendly. In this study, innovation plays a vital role in offering low-tech and low-cost cooling solutions for both hot and cold climates. Two Nordic countries in a cold climate, Sweden and Denmark, and two African countries in hot dry climates, Egypt and Namibia, are used as case studies for application and testing. A hands-on experimental passive cooling system made from traditional shisha clay funnels for the hot and dry Egyptian climate was first tested in an urban living lab for proof of concept. Several shapes and sizes of clay funnels were investigated and tested for their performance in cooling. The clay funnels were first measured and simulated for their efficiency in accelerating airflow inside residential units and their ability to enhance air velocity if combined with cross-ventilation strategies. The simulation results showed significant enhancement in airflow and air speed inside the test room compared to conventional windows, while the monitored test cells showed an average reduction in indoor temperature of 5 °C and an average humidity reduction of 40%. Based on onsite monitoring, three different design proposals were developed to enhance the performance of the eco-cooler. After testing the design proposals, onsite prototypes will be tested as a continuation of the pilot case. We aim to reach a reduction of indoor air temperature by up to 10 °C. 

Place, publisher, year, edition, pages
Springer, 2023. p. 733-743
Series
Sustainable Development Goals Series, ISSN 2523-3084, E-ISSN 2523-3092
National Category
Energy Engineering
Identifiers
URN: urn:nbn:se:mau:diva-70141DOI: 10.1007/978-3-031-36320-7_46Scopus ID: 2-s2.0-85193996527ISBN: 978-3-031-36319-1 (print)ISBN: 978-3-031-36322-1 (print)ISBN: 978-3-031-36320-7 (electronic)OAI: oai:DiVA.org:mau-70141DiVA, id: diva2:1888147
Conference
UIA World Congress of Architects Copenhagen 2023
Available from: 2024-08-12 Created: 2024-08-12 Last updated: 2024-08-12Bibliographically approved

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Dabaieh, Marwa

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