Investigation Study of Efficiency Water Heating System in Wool Washing Process by Using Parabolic Trough Solar System

This study investigates the efficiency of a water heating system for wool washing processes using a parabolic trough solar system. Wool washing, an essential phase in wool transformation, requires water heated above 70°C. The research proposes replacing conventional natural gas systems with parabolic trough solar concentrators system, focusing on the water pool as the system's core element. The pool, constructed from bricks reinforced with an internal steel layer, enhances heat exchange efficiency. Various synthetic oils—Thermia B, Heat Transfer Oil 32, Biphasic Oil (Syltherm 800), and Therminol vp1—were analyzed to determine the optimal heat transfer fluid. Numerical simulations, conducted using ANSYS CFX software with the k-ε turbulence model, evaluated the thermal performance and temperature distribution. Results demonstrate the superior efficiency of the proposed solar-powered system, particularly when combined with steel reinforcement and optimized heat transfer fluids, offering a sustainable and energy-efficient solution for industrial wool washing.