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OPTIMIZING SOLAR THERMAL SYSTEMS FOR DOMESTIC HOT WATER: A CASE STUDY ON LOW-FLOW TECHNOLOGY
Abstract
This paper presents an in-depth analysis of a residential solar thermal system designed for domestic hot water (DHW) production in a single-family dwelling located in Mangalia, Romania. Positioned at a latitude of 43.894- and a longitude of 28.422-, Mangalia benefits from an annual global irradiation of 1403 kWh/m?, providing favorable conditions for solar energy utilization. The study evaluates the system's performance over the course of a year, focusing on energy consumption, solar fraction, and environmental benefits. The solar thermal system in Mangalia achieves a performance ratio of 2.02, indicating that each unit of auxiliary energy input generates over two units of useful thermal energy. Notably, 64.3% of the household's total energy demand is met through solar energy, significantly reducing the reliance on conventional energy sources. Further analysis reveals that the system produces a total annual thermal output of 2661 kWh, with energy savings reaching 2801 kWh per year. These savings correspond to a reduction of approximately 1502 kilograms in CO2 emissions, underscoring the environmental advantages of solar thermal technology in this region. By integrating detailed operational data, this paper highlights the system's efficiency in harnessing solar energy, particularly in the context of Mangalia's climatic conditions. The findings emphasize the potential for optimizing system design to maximize energy efficiency and reduce environmental impact. The paper concludes with recommendations for enhancing the adoption of solar thermal systems in residential settings across similar geographical locations, contributing to the global transition toward sustainable energy solutions.
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M. G. Osman, D.-A. Ciupagenau, G. Lazaroiu, and I. Pisa, �Increasing Renewable Energy Participation in Sudan,� in 2022 11th International Conference on Renewable Energy Research and Application ICRERA), 2022, pp. 169�173. DOI: 10.1109/icrera55966.2022.9922827
Sadhishkumar, S. and Balusamy, T., 2014. Performance improvement in solar water heating systems�A review. Renewable and Sustainable Energy Reviews, 37, pp.191-198. DOI: 10.1016/j.rser.2014.04.072
Jaisankar, S., J. Ananth, S. Thulasi, S. T. Jayasuthakar, and K. N. Sheeba. "A comprehensive review on solar water heaters." Renewable and sustainable energy reviews 15, no. 6 (2011): 3045-3050. DOI: 10.1016/j.rser.2011.03.009
Lazaroiu G, Gmal Osman M, Strejoiu CV. Performance Evaluation of Renewable Energy Systems: Photovoltaic, Wind Turbine, Battery Bank, and Hydrogen Storage. Batteries. 2023 Sep 18;9(9):468. DOI: 10.3390/batteries9090468
Taheri, Y., Ziapour, B.M. and Alimardani, K., 2013. Study of an efficient compact solar water heater. Energy conversion and management, 70, pp.187-193. DOI: 10.1016/j.enconman.2013.02.014
Ahmed, S.F., Khalid, M., Vaka, M., Walvekar, R., Numan, A., Rasheed, A.K. and Mubarak, N.M., 2021. Recent progress in solar water heaters and solar collectors: A comprehensive review. Thermal Science and Engineering Progress, 25, p.100981. DOI: 10.1016/j.tsep.2021.100981
Sampathkumar, K. and Senthilkumar, P., 2012. Utilization of solar water heater in a single basin solar still�an experimental study. Desalination, 297, pp.8-19. DOI: 10.1016/j.desal.2012.04.012
�Osman, M.G., Strejoiu, C.V., Panait, C., Lazaroiu, A.C. and Lazaroiu, G., 2024, June. Microgrid Model for Evaluating the Operational Dynamics of Solar-Powered Hydrogen Production. In 2024 9th International Conference on Energy Efficiency and Agricultural Engineering (EE&AE) (pp. 1-6). IEEE. DOI: 10.1109/eeae60309.2024.10600588
Osman, M.G., Strejoiu, C.V., Panait, C., Lazaroiu, G. and Lazaroiu, A.C., 2023. Renewable energy integration, climate analysis, and efficiency optimization for greener transportation-case study in Dobrogea. International Multidisciplinary Scientific GeoConference: SGEM, 23(6.2), pp.675-687 DOI: 10.5593/sgem2023v/6.2/s27.83
Osman MG, Ciupageanu D, Stan A. Analysis of Solar Radiation in Sudan and Optimal Location of Photovoltaic Panels. UPB Sci. Bull. Series C. 2022; 84:387-401.
IEA � International Energy Agency.� https://www.iea.org/ (accessed Apr. 10, 2022).
Dorel, S., Gmal Osman, M., Strejoiu, C.V. and Lazaroiu, G., 2023. Exploring Optimal Charging Strategies for Off-Grid Solar Photovoltaic Systems: A Comparative Study on Battery Storage Techniques. Batteries, 9(9), p.470 DOI: 10.3390/batteries9090470
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