Eurovent has published a new informational flyer outlining the role of evaporative cooling technologies amid rising global temperatures and increasing cooling demand. The publication, titled “Evaporative cooling performing in climate change,” explains how climate trends are influencing cooling needs and why evaporative cooling systems can remain efficient and resilient in warmer conditions.
The flyer highlights that while dry bulb temperatures have risen significantly, the increase in wet bulb temperature has been smaller. According to the document, European summer wet bulb temperatures have increased by just over 1°C (approx. 1.8°F) over the past 64 years, with an average trend of about 0.22°C per decade (approx. 0.4°F). Because evaporative cooling systems use latent heat in addition to sensible heat, their performance is closely linked to wet bulb temperature. The comparatively slower rise in wet bulb temperature suggests that evaporative cooling can maintain stable efficiency even as overall air temperatures continue to increase.
Massimiliano Ferrario, Secretary of the Eurovent Product Group ‘Cooling Towers’ (PG-CT), said: “Evaporative cooling technologies are well positioned to address the growing cooling demand driven by climate change. Because these systems rely on wet bulb temperature rather than dry bulb temperature alone, their efficiency remains comparatively stable even as ambient temperatures increase. This makes evaporative cooling a reliable and energy-efficient solution for many industrial and commercial applications.”
With the flyer, Eurovent aims to provide policymakers, engineers, and building professionals with an overview of how evaporative cooling technologies can contribute to energy-efficient cooling strategies in a warming climate. The document was prepared in a joint effort by participants of the Product Group ‘Evaporative Cooling Equipment’ (PG-CT) and is available for download on the Eurovent website.