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Modeling of Stochastic Temperature and Heat Stress Directly Underneath Agrivoltaic Conditions with Orthosiphon Stamineus Crop Cultivation

Othman, N. F., Yaacob, M. E., Mat Su, A. S., Jaafar, J. N., Hizam, H., Shahidan, M. F., Jamaluddin, A. H., Chen, G. and Jalaludin, A. (2020) Modeling of Stochastic Temperature and Heat Stress Directly Underneath Agrivoltaic Conditions with Orthosiphon Stamineus Crop Cultivation. Agronomy, 10 (10). ISSN 2073-4395

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Article Link(s): https://doi.org/10.3390/agronomy10101472

Abstract

This paper presents the field measured data of the ambient temperature profile and the heat stress occurrences directly underneath ground-mounted solar photovoltaic (PV) arrays (monocrystalline-based), focusing on different temperature levels. A previous study has shown that a 1degC increase in PV cell temperature results in a reduction of 0.5% in energy conversion efficiency; thus, the temperature factor is critical, especially to solar farm operators. The transpiration process also plays an important role in the cooling of green plants where, on average, it could dissipate a significant amount of the total solar energy absorbed by the leaves, making it a good natural cooling mechanism. It was found from this work that the PV system's bottom surface temperature was the main source of dissipated heat, as shown in the thermal images recorded at 5-min intervals at three sampling times. A statistical analysis further showed that the thermal correlation for the transpiration process and heat stress occurrences between the PV system's bottom surface and plant height will be an important factor for large scale plant cultivation in agrivoltaic farms.

Item Type:Article
Business groups:Crop and Food Science
Keywords:transpiration PV heat conversion plant heat stress agrivoltaic system sustainable integration thermal analysis
Subjects:Agriculture > Agriculture (General) > Agricultural meteorology. Crops and climate
Agriculture > Agriculture (General) > Methods and systems of culture. Cropping systems
Deposited On:09 Jun 2021 03:02
Last Modified:03 Sep 2021 16:46

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