Formulation and solution of the inverse problem of diagnostics of the state of multi-stage flash evaporative units

Multi-stage flash evaporation units (MSF EUs) are widely used in the power generation, chemical, and housing and utilities sectors. This MSF EUs are widely used due to their efficient and cost-effective operation. However, it should be noted that a malfunction in one of the stages can lead to reduced productivity or deterioration in the quality of the finished distillate. Timely diagnostics and troubleshooting are a pressing research objective. The solution of direct and inverse problems of diagnostics of MSF EUs is carried out within the framework of matrix mathematical models of equipment, based on the balance equations of energy and mass. Based on the matrix approach, modeling, formulation and solution of inverse diagnostic problems of MSF EUs have been carried out, taking into account the droplet entrainment of superheated water and possible contamination of the heating surfaces of the stage. Based on the solutions obtained, recommendations have been developed to eliminate the detected defects. Diagnostic algorithms are proposed, which are supposed to be implemented in the information complex for monitoring the condition of MSF EUs equipment. To improve and bring the information system to practical use, it is necessary to organize the exchange of current data with standard measuring instruments of real power equipment.