Assessment Procedure for the Advantages of LED Phyto-Strip Application in the Industrial Greenhouse Complexes

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Abstract

The efficiency of LED phyto-strip in the field of photosynthetically active radiation has been assessed and compared with the alternative phyto-irradiators used in the industrial greenhouse complexes. The phyto-strip efficiency in the field of photosynthetically active radiation was equal to 42% that was 4.7 times higher than the efficiency of a full-spectrum grow lamp and 4.4 times higher than the efficiency of a fluorescent lamp. The spectral and energy characteristics of the LED phyto-strip have been determined. The average value of the photosynthetic photon flux density applicable for the plant growing process (≈300 µmol / m2 / s) is achieved when radiation is obtained from one meter of phyto-strip at a distance of ≈20 cm from the irradiated area when current is passed through it. Due to its high efficiency, the phyto-strip will improve the growth results of various crops in the autonomous agro-industrial enterprises, and will also reduce the energy costs.

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About the authors

Mariya M. Degtereva

St. Petersburg Electrotechnical University “LETI”

Author for correspondence.
Email: journal@electronics.ru
ORCID iD: 0000-0001-6797-0595

postgraduate student

Russian Federation, Saint-Petersburg

Yevgeniy Levin

St. Petersburg Electrotechnical University “LETI”

Email: journal@electronics.ru
ORCID iD: 0009-0000-3811-487X

postgraduate student

Russian Federation, Saint-Petersburg

Alexander E. Degterev

St. Petersburg Electrotechnical University “LETI”

Email: journal@electronics.ru
ORCID iD: 0000-0002-6151-6567

postgraduate student

 

Russian Federation, Saint-Petersburg

Alexander A. Bogdanov

St. Petersburg Electrotechnical University “LETI”

Email: journal@electronics.ru
ORCID iD: 0009-0004-2540-4228

master student

Russian Federation, Saint-Petersburg

Ivan A. Lamkin

St. Petersburg Electrotechnical University “LETI”

Email: journal@electronics.ru
ORCID iD: 0000-0002-3680-7725

Cand. of Tech. Sciences, Associate Professor of the Department of Photonics

Russian Federation, Saint-Petersburg

Sergey A. Tarasov

St. Petersburg Electrotechnical University “LETI”

Email: journal@electronics.ru
ORCID iD: 0000-0002-6321-0019

Doctor of Technical Sciences, Head of the Department of Photonics

Russian Federation, Saint-Petersburg

Pavel A. Sergeev

Svetoyar LLC

Email: journal@electronics.ru

Engineer, General Director

Russian Federation, Saint-Petersburg

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Supplementary files

Supplementary Files
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1. JATS XML
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2. Fig. 1. White LED (a) and red LED (b), led strip section (c), LED phytolamp (d) and fluorescent lamp (e)

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3. Fig. 2. Installation diagram for measuring the spectral and energy characteristics of LEDs

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4. Fig. 3. Volt-ampere characteristics of white (1, 2) and red (3, 4) LEDs

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5. Fig. 4. Spectral characteristics of led strip section (1), fluorescent lamp (2) and phytolamp (3)

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6. Fig. 5. Change in the peak emission wavelength of blue crystal white LED (a) and red LED (b)

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7. Fig. 6. Efficiency characteristic of led strip section

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8. Fig. 7. Dependence of the PPFD value on the distance for all studied radiation sources (1 – one meter of led strip, 2 – fluorescent lamp, 3 – LED phytolamp) (a); dependence of the photosynthetic photon flux of the led strip section (b) and the efficiency of the device in the PAR region (c) on the current

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9. Fig. 8. Absorption spectra of the main photochemical plant pigments and the emission spectrum of the led strip (1 – chlorophyll a, 2 – chlorophyll b, 3 – chlorophyll d, 4 – lutein, 5 – beta-carotene, 6 – led strip, 7 – fluorescent lamp, 8 – LED lamp)

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Copyright (c) 2023 Degtereva M.M., Levin Y., Degterev A.E., Bogdanov A.A., Lamkin I.A., Tarasov S.A., Sergeev P.A.

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