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Wind tunnel

Study of the HNS evaporation process

By project MANIFESTS Genius staffPublished on

Last summer, Cedre began a series of tests in its wind tunnel, which are scheduled to run until the end of July. This tunnel was developed as part of the European MANIFESTS project (2021-2023) and will be used to characterise the impact of wind speed on the evaporation kinetics of hazardous and noxious substances.

Chemical

The initial evaporation tests, which began in early June, were conducted using Cedre’s wind tunnel with methanol, cyclohexane and butyl acetate being released at the seawater surface. 

The first results were presented to the Consortium during the Progress meeting organised on July 16th. In addition, data collected for butyl acetate were compared with the data recorded by the ONERA’s SIMAGAZ camera deployed during the 2022 MANIFESTS sea trial, and evaporation rates matched quite well. Hence, promising results were collected, offering valuable insights into the evaporation process and the influence of seawater on it. These findings will help refining the evaporation module developed in the previous project (based on the evaporation of pure chemicals, without seawater) and included in the DSS.