Heat transfer between the pressing chamber and the oil and oilcake streams during screw expeller processing of palm kernel seeds

摘要

The rate of heat generation and the temperature profile along the press barrel during screw expeller processing of palm kernel seeds in an experimental press have been studied. A steady non-isothermal temperature profile was essentially established along the press barrel after about 15 min of press operation. This paper highlights the need to give due prominence to hitherto neglected thermal effects in subsequent studies on the modelling of the screw press opeation.