Experimental Investigations on Thermal Efficiency. Example of the Composite Salt Gradient Solar Pond with Dual Reflectors and Triple Layer Glass

Doctoral Thesis / Dissertation from the year 2023 in the subject Engineering - Mechanical Engineering, Anna University (Sri Ramakrishna Institute of Technology), course: Mechanical Engineering, language: English, abstract: Imagine a world where solar energy storage is not just efficient, but also economically viable. This book delves into the innovative design and rigorous testing of a composite salt gradient solar pond (SGSP), a groundbreaking approach to harnessing and storing solar thermal energy. Through meticulous experimentation and theoretical modeling, this research explores the transformative potential of combining a unique composite salt mixture with advanced architectural elements, specifically dual reflectors and a triple-layer glass cover, to drastically enhance the thermal efficiency of solar ponds. Discover how this study meticulously examines the performance of a laboratory-scale hexagonal SGSP (0.679 m³) over a year-long period (January 2020 - December 2020), meticulously documenting temperature profiles and comparing various configurations. Unearth the secrets behind the composite salt composition (30% sodium chloride, 10% magnesium chloride, 60% potassium chloride) and its crucial role in optimizing energy storage. Beyond the technical advancements, this investigation critically assesses the economic feasibility of the improved SGSP design, weighing the initial investment against the promise of long-term energy savings and a sustainable future. This book is an essential resource for researchers, engineers, and policymakers seeking to unlock the full potential of solar energy through cutting-edge thermal storage solutions. Explore the comparative analysis of different SGSP configurations and the validation of a sophisticated temperature prediction model. Uncover insights into wall shading effects, thermal efficiency of pond layers, and design modification-driven performance enhancements. This book provides a compelling case for the adoption of advanced SGSP designs in the pursuit of renewable energy and sustainable development, offering a pathway to a future powered by the sun's boundless energy. Keywords: Solar pond, salt gradient solar pond (SGSP), composite salt, thermal efficiency, energy storage, dual reflectors, triple-layer glass, hexagonal design, temperature modeling, cost analysis, renewable energy. This text provides a comprehensive investigation into renewable energy solutions and salt gradient solar pond innovations.