METHOD OF SIMULATING PROCESS OF HEAT AND MASS EXCHANGE DURING CONVECTIVE DRYING OF CLOSED CONTAINER AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2024 - IPC G01N33/22 

FIELD: various technological processes.

SUBSTANCE: group of inventions relates to simulation of closed vessels (CV) drying processes based on gasification of liquid residues after a number of operations, for example, hydraulic strength tests, washing vessels after installation of various devices, welding, calibration of volumes, etc. Method of simulating the process of heat and mass exchange during evaporation of a liquid with a free surface in a closed vessel (CV) differs from the known method by the fact that the liquid before the experiment is supplied to the CV and drained; the effect is carried out on the liquid remaining on the CV surface. Angle of heat transfer agent (HTA) introduction in CV and speed of HTA in points of contact with surface of liquid are determined from the condition of drops stripping and their carry-over from CV. HTA moisture content is measured at the CV inlet and outlet, and when the specified value of the HTA moisture content is reached at the CV outlet, drying is stopped. Ultrasound is performed on both the CV structure and the HTA flow. Additional removable insulating coating is introduced on the CV structure. Values of parameters of influencing factors on CV are controlled from the condition of optimization of the introduced criterion using the method of optimal control, for example, Pontryagin's method.

EFFECT: as a result of using the disclosed method and device for its implementation, CV drying is carried out without the risk of damage to the structure strength, energy and time costs for CV drying are reduced.

3 cl, 1 dwg