Details

Autor(en) / Beteiligte

• Yedmel, Maria Aurely
• Nasser eddine, Ahmad
• Hoang, Hong-Minh
• Hunlede, Romuald
• Fournaison, Laurence
• Delahaye, Anthony

Titel

Experimental study of the performance of a heat exchanger for a new desalination-cooling technique using ice slurry: A proof of concept

Ist Teil von

• Applied thermal engineering, 2024-08, Vol.250, p.123479, Article 123479

Ort / Verlag

Elsevier Ltd

Erscheinungsjahr

2024

Quelle

Elsevier ScienceDirect Journals

Beschreibungen/Notizen

• •Ice slurry technology can be used for seawater desalination.•Freshwater was obtained by melting the ice while cold energy was used for cooling.•Saltwater salinity was reduced by a factor of 10 at the separation stage.•Ice melting process on a finned-tube heat exchanger was successfully characterised.•Melting kinetic and melting efficiency were dependent on operating conditions. Ice slurry was used to produce desalinated water and cold energy simultaneously. The process involved partially freezing seawater to separate the ice from the brine. Then, freshwater is produced by recovering heat from seawater to melt the ice. This paper focused on the kinetics and efficiency of ice melting in direct contact with a finned-tube heat exchanger. The melting performances were analysed as a function of the quantity of ice, the salt water flow rate and the state of the ice during melting. It was found that increasing the salt water flow rate by 33 % increased the melting efficiency by 33 % and decreased the melting time by 15 %. Increasing the quantity of ice by 36 % decreased the melting efficiency by 6 % and increased the melting time by 24 %. The use of weights impacted melting efficiency differently depending on the state of the ice (compacted, watered).