DEVELOPMENT OF HIGH-PERFORMANCE HYBRID NANOMATERIALS FOR NEXT-GENERATION HEAT EXCHANGER SYSTEMS IN RENEWABLE ENERGY APPLICATIONS

Abstract

The fundamental objective of this research involves manufacturing advanced hybrid nanomaterials intended for next-generation renewable energy heat exchanger systems.  This work examines the synthesis and characterization and evaluation of hybrid nanomaterials made from graphene and carbon nanotubes base nanomaterials together with copper and silver metallic particles and ceramic materials because they show better thermal conductivity and mechanical strength alongside corrosion resistance.  Hybrid composites obtained through the integration of chemical vapor deposition, sol-gel synthesis, high-energy ball milling and sonication method resulted in well-dispersed distributions.  Several characterization techniques including transmission electron microscopy and scanning electron microscopy, X-ray diffraction and Fourier-transform infrared spectroscopy proved that composites contained nanoparticles at specific locations while ensuring uniform material distribution.  Nanocomposites made from hybrid materials achieved thermal conductivity that rose by 45% above standard material values and this improvement was confirmed through thermal conductivity tests.  Tests performed under mechanical stress revealed the composites maintained solid structural integrity because of their maximum tensile strength improvement reaching 30%.  The hybrid materials performed well when compared to other materials through demonstrating outstanding resistance to corrosion under renewable energy system conditions and extreme temperature cycles.  Computational fluid dynamics models validated by experimental testing on heat exchanger prototypes showed that pressure drop decreased while maximum thermal recovery times shortened substantially thus leading to elevated heat transfer rates and improved fluid flow dynamics.  The hybrid nanomaterials display satisfactory environmental friendliness throughout their life cycle while offering both sustainability and affordability for major industrial applications.  These sophisticated hybrid nanomaterials show potential for heat exchanger system improvements in renewable energy technologies by enhancing durability alongside performance and efficiency together with reduced environmental impact according to experimental results.