| Plate heat exchangers (PHEs) are widely used in food industries for processing liquid products, because of their high thermal effectiveness, ease of maintenance and cleaning, high heat exchange rate and demand of relatively small floor area. As many food products are non-Newtonian fluids, particularly pseudoplastic in nature, it is important to study nature of their flow and heat transfer characteristic in PHEs. Aqueous solutions of carboxymethylcellulose (CMC) at different weight concentrations (0.2%, 0.4% and 0.6%) and 25 ≤ NRe,gen ≤ 250 and at different inlet temperatures (50°C, 60°C and 70°C) were considered as operating conditions. Using data obtained, relations between dimensionless numbers (NNu, NPr and NRe,gen) were established. Pressure drop... |
