Kinetic study on drying of mushrooms combining heat pipe and jet technology

In this test, the new heat pipe and jet impingement energy-saving drying technology were applied together to explore the influence of jet temperature, air rate, and the height of nozzles on the drying characteristics of mushrooms.A drying kinetics model was established and the experimental data were fitted by the software DPS.The results showed that the drying process of mushrooms with this combined technology may include three stages, namely, the accelerating stage, the constant stage and the decelerating stage.The drying rate was remarkably accelerated by the increase of the temperature and the rate of drying media, but it was less influenced by the height of nozzles.The kinetic model of the mushroom drying with this combined technology fitted the Logarithmic model.