Global Decarbonisation 3050-0230 Caravel Press 10.17184/eac.9493 2025.006 Evaporative Cooling Technologies: From Past to Present CucePinar Mert mertcuce@gmail.com Department of Architecture, Faculty of Engineering and Architecture, Recep Tayyip Erdogan University, Zihni Derin Campus, 53100, Rize, Turkey ; Department of Architecture and Built Environment, Faculty of Engineering, University of Nottingham, University Park, Sustainable Research Building, NG7 2RD Nottingham, UK 20062025 1 1 40 20 June 2025 © 2025 The Author(s). Published by Caravel Press. 2025 This is an open access article under the CC BY 4.0 licence.

Evaporative cooling has served as a crucial method of passive thermal regulation across civilisations for millennia, evolving from rudimentary clay pot techniques to advanced hybrid cooling systems. This study presents a comprehensive historical and technical review of evaporative cooling technologies, highlighting their cultural, architectural, and scientific progression from ancient to contemporary times. Early implementations in Egypt, Mesopotamia, and the Indus Valley illustrate a foundational understanding of thermodynamic principles, using water and airflow to reduce ambient temperatures. The Roman Empire, Persian architecture with windcatchers, and medieval European designs all refined these methods, incorporating indirect and structural adaptations to maximise evaporative effects. During the industrial revolution, evaporative cooling technologies expanded into commercial and industrial applications, with innovations such as water-cooling towers and fan-assisted ventilation systems marking a transition towards mechanised systems. In the 20th and 21st centuries, the development of hybrid systems, solar-powered units, and desiccant-assisted cooling mechanisms has further diversified the scope and efficiency of evaporative cooling. These modern systems address energy efficiency and sustainability concerns, particularly in arid and semi-arid climates, offering cost-effective alternatives to conventional air conditioning. Despite challenges such as diminished performance in humid environments and water consumption, recent advances—including membrane technologies, closed-loop systems, and AI-driven optimisation—continue to enhance the adaptability and performance of evaporative cooling solutions. As global energy demands rise and environmental concerns escalate, evaporative cooling emerges as a sustainable and scalable technology, supporting climate-responsive architecture, agricultural storage, and industrial processes. This article underscores the enduring relevance of evaporative cooling and its potential to shape future thermal management strategies.

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