EXERGETIC ANALYSIS OF PARABOLIC TROUGH COLLECTORS USING VARIOUS MONO & HYBRID NANO FLUIDS

Abstract

Solar boasts itself to be most sustainable, employable and ecologically acceded renewable sources of energy due to its simplicity of usage and low environmental effect. Solar energy may be utilized for a variety of applications, including solar water heaters. Solar collectors are used for cooling and dehumidification in addition to room and water heating. Heat losses and fluid absorption characteristics, on the other hand, restrict the collector's efficiency. Alternative fluids, which are essentially the same as conventional fluids but include a specific quantity of suspension of metal or nonmetal particles, have been utilised to great success in solar collectors during the past several decades. Nanofluids are fluids that have microscopic particles suspended in them, thus the name. It has been established through numerous experiments and investigation that floating these nanoparticles enriches base fluid thermal properties, yielding better thermal conductivities than conventional fluids. As a consequence, nanofluids are more suited than traditional fluids for heat transfer enhancement applications. It has been proved to be one among the most popular and promising ways for improving and enhancing the concentrating power collector performance . This work intents to investigate various thermal and energetic based efficiency optimization of parabolic through collector using various mono and hybrid Nano fluids. The goal of this study was to improve the LS-2 parabolic trough model and examine the enhancing effects of mono and hybrid Nano fluids. The methodology of heat transfer analysis is used in this study to construct a software using the Engineering Equation Solver for the numeric simulation of the parabolic trough collector. Solar irradiation, inlet fluid temperature, and volumetric flow rate of heat transfer fluid are the primary inputs to the proposed model, while the thermal and exergetic efficiency is the main output. The final result and findings clearly shows the optimized condition for exergetic efficiency in addition to the optimized conditions for thermal efficiency.