Modelling & Development of Novel Sustainable Thermo-fluids to Maximise the Efficiency of Solar Thermal Applications.

Abstract

This research introduces an innovative numerical optimisation framework to improve the thermal efficiency of heat transfer fluids (HTFs) used in solar thermal applications, while also minimising energy consumption required for pumping. The model evaluates the performance of various HTFs and aids in selecting the most suitable fluid based on its properties. Unlike previous approaches, the novelty of this model lies in the combined assessment of corrosion behavior and heat transfer properties of fluids, recognising that system performance depends on both. By optimising key parameters such as thermophysical properties, corrosion effects, Reynolds number, and channel dimensions, the model provides a governing principle for enhancing concentrated solar power systems. Effective optimisation significantly reduces pumping energy and improves fluid efficiency. To validate the model, selected HTFs were simulated, demonstrating its accuracy and applicability for various fluid types.