Efficiency Optimization in Solar Water Heaters: A Comparative CFD Study of Design Configurations

Abstract

In the realm of renewable energy, the optimization of solar water heating (SWH) systems stands paramount for addressing the escalating energy demands. This investigation delves into the pivotal role of design configurations in augmenting the efficiency of SWH systems, with a focus on diverse climatic and locational contexts. Employing the k-omega turbulence model within the ANSYS software framework, a meticulous evaluation of three distinct design configurations, namely, tube-over-plate, tube-under-plate, and tube-in-line-with-plate, is presented. The essence of this study lies not merely in delineating the intrinsic characteristics of these configurations but in a comparative assessment of their efficiencies to ascertain the most efficacious design for superior SWH performance. The adoption of the k-omega turbulence model is instrumental in capturing the intricate fluid dynamics that significantly influence SWH efficiency. The findings reveal that the tube-under-plate configuration exhibits remarkable efficiency, while the tube-in-line-with-plate arrangement demonstrates comparably effective performance. These insights represent a substantial contribution to the advancement of water heating technology, paving the way for more effective and sustainable energy solutions.