EVALUATION OF WASTEWATER HEAT RECOVERY AND TECHNICAL WATER PRODUCTION USING A PARABOLIC TROUGH SOLAR CONCENTRATOR

This study evaluates the potential for recovering secondary heat from industrial wastewater using a Parabolic Trough Solar Concentrator (PTSC). The research focuses on improving energy efficiency through the combined utilization of industrial waste heat and solar thermal energy for high-temperature applications. Materials and Methods The study investigates the stepwise heating of industrial wastewater using solar energy, the generation of high-temperature steam, and the subsequent production of technical water. Heat transfer processes were modeled using the Finite Element Method (FEM), while radiative heat transfer was simulated using the Monte Carlo method. Results The simulation results demonstrated that recovering secondary heat from industrial wastewater in combination with solar thermal energy significantly improves the efficiency of high-temperature steam generation. The combined FEM and Monte Carlo modeling approaches provided accurate prediction of heat transfer processes and enabled the determination of optimal operating parameters for the solar thermal system. Conclusion The obtained results provide valuable guidance for optimizing the design of high-temperature solar thermal systems and for implementing energy-efficient technologies based on the effective recovery and utilization of industrial wastewater heat.

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