Impact of solar radiation on luminaires and energy efficiency in isolated residential photovoltaic systems




HIGHLIGHTS
  • What: The primary focus of this study underscores the presence and significance of interharmonic generation in an isolated photovoltaic system, primarily designed for fluorescent lighting installation in a residential setting under varying solar irradiance conditions. Case Studies and Results This study was conducted in a residential setting housing a family of four, with fluThis study installed was conducted in ina various residential setting housing a family of four, with orescent luminaires as linear loads living spaces within the residence. fluorescent luminaires installed as linear loads in various living spaces within the residence. The experiments were carried out on 2 the maximum solar irradiance was calculated to reach 1300 W/m. In the first case, the authors conducted an analysis of the energy efficiency of luminaires
  • Who: Jaime Jalomo-Cuevas and collaborators from the Institute of Materials Technology, Universitat Politècnica de València, Valencia, Spain have published the research work: Impact of Solar Radiation on Luminaires and Energy Efficiency in Isolated Residential Photovoltaic Systems, in the Journal: Buildings 2023, 2655 of /2023/
  • How: Real-world experiments are conducted in a residential setting and the results are thoroughly analyzed. A second experiment is conducted introducing changes in sunlight intensity by partially shading the photovoltaic panels to prevent direct sunlight from reaching the silicon surface where transients produce interharmonic patterns. The experiments were conducted on a real platform equipped with photovoltaic panels connected in series an MPPT charge controller a DC/AC converter and fluorescent lamps. The experiments were carried out on the same day with measurements of electrical signals taken at 5 min intervals and fractions of seconds (0.2 s) for subsequent time-frequency analysis using spectrograms.
  • Future: While the experiments were limited to a single residential space it is clear that future research endeavors should focus on luminaire applications in residential settings under the influence of diverse radiation conditions and location-specific effects within photovoltaic systems whether they are based on energy storage or isolated from the electrical network.
SUMMARY

    Multi-family residential buildings that incorporate solar systems yield greater amounts of both electrical and thermal energy compared to conventional systems within the same multifamily building installation, playing a crucial role in the decarbonization effort. The economic viability of harnessing solar energy for various residential applications is evident, considering both the technical aspects of solar panel installation and their financial advantages. During the winter months, solar radiation may not be sufficient for energy conversion in a photovoltaic system designed for residential use. Assuming these conditions, it has been observed that solar irradiance influences facades with photovoltaic systems, with diffuse solar radiation contributing significantly to the overall solar radiation. Even in residences where an isolated photovoltaic system is proposed, relying on battery storage, variations in predicted solar radiation and battery degradation are dependent on the total energy consumption of appliances, revealing a correlation between solar radiation and the capabilities of the photovoltaic battery system. Similarly, in multi-generational energy systems based on solar energy for residential houses, there is a linear increase in energy production with the improvement of panel efficiency and solar irradiation. In summary, the results of this research underscore the relevance of environmental conditions and solar radiation to the energy efficiency of photovoltaic systems interconnected with luminaires. The research has demonstrated that different solar radiation conditions, as well as total or partial shading of solar modules, lead to increased generation of unwanted interharmonic contents, subsequently affecting the performance of installed luminaires. Expanding the understanding of these complex interactions will be essential for advancing the design and implementation of solar-powered lighting systems in energy-efficient buildings. @@

Licence: cc-by

Site reference: https://www.mdpi.com/2075-5309/13/10/2655/pdf?version=1697880040

DOI reference: https://www.doi.org/10.3390/buildings13102655

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source https://magazine.sciencepod.net/impact-of-solar-radiation-on-luminaires-and-energy-efficiency-in-isolated-residential-photovoltaic-systems/

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