High-density citrus pulp is becoming increasingly popular in the beverage industry; however, its unique rheological behavior poses some challenges for its processing in heat exchangers, including high pressures resulting from its high viscosity and the difficulties producing an even mixture. The rheological behavior of 850 g/l citrus pulp has been studied at different temperatures between 20 °C and 80 °C and applied to computerized fluid dynamics (CFD) simulations of flow in circular pipes and annular heat exchangers in order to determine flow characteristics and solutions for pulp mixing.

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