Research and development of the drying technology

Abstract

Static and dynamic characteristics of the drying process as an object of automation are experimentally determined in the work. It was established that the drying object can be represented as two linked “air” – “drying object” and has interconnected input and output parameters. A mathematical description of the static and dynamic characteristics of the drying process as an object of automatic regulation has been researched and carried out. With the help of mathematical processing of experimental data, mathematical dependences on the studied regulation channels were obtained as the transfer functions, differential equations, and acceleration curve equations. The obtained experimental time characteristics of the drying object on different control channels are approximated with an error of less than 3 % by differential equations of the 1st order with a delay. The object is characterized by variable constant time and delay time values for different drying phases.