Modeling Heat Transfer Coeficient Of Air Using Buckingham PiTheory
Journal Title: Invention Journal of Research Technology in Engineering & Management - Year 2019, Vol 3, Issue 2
Abstract
Heat transfer coefficients of dryers are useful tools for correlation formulation and performance evaluation of process design of dryers as well as derivation of analytical model for predicting drying rates. A model equation for predicting heat transfer coefficient of air in a batch dryer using Buckingham Pi-theorem and dimensional analysis at various velocities has been formulated. The model was validated by drying unripe plantain chips in a batch dryer at air velocities of 0.66, 0.92 and 1.20m/s at temperatures of 42, 54.45 and 66°C, respectively. Based on the analogy of heat and mass transfer rate equations for constant drying period, the prediction from the developed model reasonably agreed with the experimental data
Authors and Affiliations
E. N. Wami
Keywords
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