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

Agronomy

Hashim Hizam¹  Ahmad Suhaizi Mat Su²  Juju Nakasha Jaafar²  Noor Fadzlinda Othman²  Adam Jalaludin³  Mohd Fairuz Shahidan⁴  Guangnan Chen⁵  Mohammad Effendy Yaacob⁶  Ahmad Hakiim Jamaluddin⁶ 

[1] Centre for Advanced Lightning, Power and Energy Research (ALPER), Universiti Putra Malaysia, Serdang, Selangor 43400, Malaysia;Department of Agriculture Technology, Faculty of Agriculture, Universiti Putra Malaysia, Serdang, Selangor 43400, Malaysia;Department of Agriculture and Fisheries, Agri-Science Queensland, Leslie Research Facility, 13 Holberton Street, Toowoomba, QLD 4350, Australia;Department of Landscape Architecture, Faculty of Design and Architecture, Universiti Putra Malaysia, Serdang, Selangor 43400, Malaysia;Faculty of Health, Engineering and Sciences, University of Southern Queensland, Toowoomba, QLD 4350, Australia;Hybrid Agrivoltaic Systems Showcase (HAVs) eDU-PARK, Universiti Putra Malaysia, Serdang, Selangor 43400, Malaysia;

关键词: transpiration;    PV heat conversion;    plant heat stress;    agrivoltaic system;    sustainable integration;    thermal analysis;   

DOI  :  10.3390/agronomy10101472

来源: DOAJ

【 摘 要 】

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 1 °C 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.

【 授权许可】

Unknown