Design and development of a biomimetic solar tree for sustainable cogeneration: an energy and exergy assessment




HIGHLIGHTS
  • What: Firstlaw analysis and second-law analysis were carried out to determine exergy losses during the photovoltaic conversion process of solar trees. The aims of this study are: a) To design and develop a portable solar tree, assess the thermodynamic performance based on heat transfer, and identify exergy losses. b) To suggest various methods to enhance the efficiency of solar trees. This investigation focuses on the thermodynamic efficiency of a large-scale photovoltaic (PV) system, explicitly emphasizing the analysis of thermal losses and electrical output exclusively from the PV array.
  • Who: Mohanaravi Kumaresen et al. from the Centre for Research in Advanced Fluid and Process, University Malaysia Pahang Al-Sultan have published the article: Design and Development of a Biomimetic Solar Tree for Sustainable Cogeneration: An Energy and Exergy Assessment, in the Journal: (JOURNAL)
  • Future: Future work can benefit from the strategy outlined in this research. Future research should concentrate on simulating the solar tree`s performance.
SUMMARY

    The solar PV efficiency assessment often relies on a solar panel`s energy efficiency, quantifying the power production relative to the original energy input delivered to the panel. In contrast to utilizing the second Law of Thermodynamics for energy analysis, the predominant approach in evaluating solar photovoltaic (PV) efficiency is based on the first Law of Thermodynamics. In applications where the effectiveness of energy usage relies solely on energy quantities, energy analysis can provide valuable guidance for effective management. The process entails quantifying considerable energy, commonly referred to as Exergy or availability, alongside the quantification of irreversibility, which denotes the fraction of energy that cannot be efficiently utilized. The application of exergy analysis can determine the utilization efficiency of an energy conversion system. To perform energy and exergy assessments on solar photovoltaic (PV) systems, it is crucial to assess the energy and exergy input and output values. Although the characteristics above depend on electrical energy production, they do not provide definitive insights into the energy conversion process occurring within the solar module. In this regard, on-site measurements are used to quantify the solar tree`s energy efficiency, exergy efficiency, and thermal losses. The solar tree`s energy efficiency ranged from 8.33% to 16.82%, and its value is solely based on solar insolation and electrical energy output. The energy efficiency of the solar tree diminishes as solar radiation and ambient temperature increase due to elevated cell temperatures and the existence of irreversibilities. The study provides valuable insights that can drive advancements in solar tree technology and further integration into sustainable energy systems. @@

Licence: cc-by

Site reference: https://www.e3s-conferences.org/articles/e3sconf/pdf/2024/18/e3sconf_amset2024_02002.pdf

DOI reference: https://www.doi.org/10.1051/e3sconf/202448802002

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source https://magazine.sciencepod.net/design-and-development-of-a-biomimetic-solar-tree-for-sustainable-cogeneration-an-energy-and-exergy-assessment/

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