Publicação: Non-newtonian flow and pressure drop of pineapple juice in a plate heat exchanger
Carregando...
Data
Orientador
Coorientador
Pós-graduação
Curso de graduação
Título da Revista
ISSN da Revista
Título de Volume
Editor
Brazilian Society of Chemical Engineering
Tipo
Artigo
Direito de acesso
Acesso aberto
Resumo
The study of non-Newtonian flow in plate heat exchangers (PHEs) is of great importance for the food industry. The objective of this work was to study the pressure drop of pineapple juice in a PHE with 50º chevron plates. Density and flow properties of pineapple juice were determined and correlated with temperature (17.4 < T < 85.8ºC) and soluble solids content (11.0 < Xs < 52.4 ºBrix). The Ostwald-de Waele (power law) model described well the rheological behavior. The friction factor for non-isothermal flow of pineapple juice in the PHE was obtained for diagonal and parallel/side flow. Experimental results were well correlated with the generalized Reynolds number (20 < Re g < 1230) and were compared with predictions from equations from the literature. The mean absolute error for pressure drop prediction was 4% for the diagonal plate and 10% for the parallel plate.
Descrição
Palavras-chave
Food processing, Heat exchanger, Pressure drop, Non-Newtonian
Idioma
Inglês
Como citar
Brazilian Journal of Chemical Engineering. Brazilian Society of Chemical Engineering, v. 27, n. 4, p. 563-571, 2010.
