A new approach to solar spectrum utilization in plant factories


2023-02-18 11:07

Recently, the Facility Plant Environmental Engineering innovation team of the Institute of Agricultural Environment and Sustainable Development, Chinese Academy of Agricultural Sciences (CAS) has made new progress in the research of efficient conversion of solar energy from plant plants to multi-spectral sources. In this study, the plant spectral complementarity method based on the co-conversion of solar energy with frequency division is proposed, and the theoretical model of the interaction between light and matter at multi-wavelength scale is established, which is of great significance for further reducing the energy consumption of plant factories. The findings are in the journal Energy Conversion and Management.

The energy consumption of light source in plant plant can be greatly reduced by applying the technology of sunlight conduction lighting to plant plant. However, only part of the visible sunlight can directly participate in the photosynthetic reaction process of crops, and the remaining spectrum will cause the increase of the ambient temperature in plant factories, and increase the energy consumption of refrigeration air conditioning.

The research team proposed a collaborative spectral and light intensity optimization system for plant plants. The system can not only conduct photosynthetic spectra for plants, but also convert non-photosynthetically active radiation spectra into heat energy for storage. The total efficiency of light conduction and energy transfer of the system is over 50%.

At the same time, in order to better match the photovoltaic demand of plant plants, this research will be further combined with photovoltaic, thermal power generation and other technologies, to achieve low energy consumption and sustainable plant plant plant development.

The research was supported by the National Key Research and Development Program, the National Natural Science Foundation of China and the Beijing Municipal Science and Technology Program.





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