variavel0=<b>CÉLIO FERNANDO CAMARGO</b> - camargo@celiocamargo.com UFSCar
<b>JOSÉ TEIXEIRA FREIRE</b> - freire@power.ufscar.br UFSCar
<b>Abstract.</b> Aerodynamic and heat transfer mechanisms are studied in a vibrofluidized bed for vibration accelerations up to 65 m/s2. The pressure drop was obtained with an acquisition data system and a statistical analysis was employed to obtain the standard deviation curves. A brass horizontal cylinder immersed in the bed was used to obtain the global heat transfer coefficient, which was analyzed as a function of vibration parameter. Results show that, in a fluidized bed the pressure oscillations do not change with bed height. In the range of parameters investigated, the oscillations in a vibrofluidized bed depend on the bed height and on the vibration parameter. The heat transfer results show that, the global heat transfer coefficient increases with the imposition of the vibration and with the air velocity.
<b>Keywords.</b> Heat transfer, vibrofluidized bed, vibration, particulate systems.