Production of ice slurry in a scraped-surface plate heat exchanger.
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AuthorMartínez Hernández, David Sebastián; Solano Fernández, Juan Pedro; Illán Gómez, Fernando; Viedma Robles, Antonio
Research GroupMecánica de Fluidos e Ingeniería Térmica
Knowledge AreaMecánica de Fluidos
Bibliographic CitationEurotherm Seminar on Convective Heat Transfer, Bruselas, September 17-19, 2013.
The present work presents experimental results of the production of ice slurry in an innovative scraped-surface plate heat exchanger (SSPHE). It consists of a 28 liters capacity tank with a total heat transfer area of 10m2m-3 crystallizer volume. The scraper consists of four rotating PEEK blades that are driven by a vertical shaft connected to an electrical motor. The heat transfer surface is cooled underneath by a foow of calcium chloride solution in water. The coolant solution is subsequently cooled by the expansion of a flow of R507 refrigerant in a compact evaporator. Sodium chloride brine with a concentration of 5% is the base solution for the generation of ice slurries of about 20% of ice content in a batch process.
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