Design and Simulation of a Greenhouse FSS Nanofiber Film for Enhancing Agricultural Productivity by Selective Reduction of UV and NIR

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Author list: Sripradit, Abhisit; Theeradejvanichkul, Thorin;

Publisher: MDPI

Publication year: 2022

Volume number: 7

Issue number: 1

eISSN: 2411-5134

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85123781595&doi=10.3390%2finventions7010016&partnerID=40&md5=a287e6324bdebb774e30ea473fbd69e2

Languages: English-United States (EN-US)

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Abstract

A greenhouse covering film is an essential part of any greenhouse. Its function is to filter solar radiation in the ultraviolet (UV) and the near-infrared (NIR) bands while allowing a great amount of photosynthetically active radiation (PAR) to transmit. This paper proposes a design of the greenhouse covering film based on a frequency selective surface (FSS). Aluminum is made into fibers in the nanoscale. They are laid out in an array, in-plane at equidistance from one another. This arrangement induces the wavelength selectivity of light via adjustment to the fiber sizes and spacings. The performance is evaluated by a finite element analysis (FEA) method. The results show less than 26% transmittance of UV and NIR while allowing more than 94% transmittance in the PAR regime. © 2022 by the authors. Licensee MDPI, Basel, Switzerland.

Keywords

Frequency selective surface, Greenhouse covering film