Friction factors and rheological properties of orange juice

The rheological behavior of Brazilian orange juice with different water content (0.34-0.73 w/w) was studied at a wide range of temperatures (0.5-62 degrees C) using a concentric cylinder viscometer. The results indicated that the juices behave as pseudoplastic fluids with yield stress, being represented by the Herschel-Bulkley model. The rheological parameters were fitted as functions of both temperature and water content in the tested range. Based on dimensional analysis it was proposed a modified Reynolds number (Re-M), which includes the Herschel-Bulkley parameters. Experimental data of friction factors during heating and cooling processes of orange juice in laminar flow through circular tubes could be well correlated as a function of Re-M. (C) 1999 Elsevier B.V. Ltd. All rights reserved.

Latin America: incorporating environmental factors into the measurement of production efficiency and technical change

Includes bibliography

Draft programme of work of the knowledge transfer network for statistical training in Latin America and the Caribbean, 2008-2009

Includes bibliography

Factores que afectan a la participación de los países del Caribe en el Area de Libre Comercio de las Américas = Factors affecting the participation of Caribbean countries in the Free Trade Area of the Americas

Incluye Bibliografía