Photovoltaic panels as shading resources for livestock

Maia, Alex Sandro Campos; Culhari, Eric de Andrade; Fonsêca, Vinícius de França Carvalho; Milan, Hugo Fernando Maia; Gebremedhin, K. G.

doi:10.1016/j.jclepro.2020.120551

Cited by 74 publications

(36 citation statements)

References 32 publications

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“…The applicability of different shading sources (cover material) can promote better thermal environment situation inside the shelter when compared with the environment without shade, being the results directly influenced by the cover material adopted. These findings are in accordance with Maia et al (2020) that highlight the importance of shading quality in the free-range animal rearing, being necessary to use materials that are able to promote good interception of solar radiation to promote an ideal environment for the animals. According to Stadig et al (2017), the lack of good shading sources in the free-range rearing system tends to promote a decrease in the capability of the system as a result of the negative interference of solar radiation in welfare and animal production.…”

Section: Discussionsupporting

confidence: 89%

Thermal environment in mobile shelters with different cover types used for chicken housing at the semi-extensive rearing system

et al. 2020

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In tropical climate countries, animal production faces a huge challenge, being the high solar irradiation levels an important factor that negatively influences the welfare and animal performance. The purpose of this research was to check the environment inside mobile shelters with different kinds of cover materials. This research has been developed at the State University of Goiás, Brazil, being used four different cover materials: DFPC, double-faced plastic canvas; PVC, polyvinyl chloride; VFB, tiles made with vegetable fiber and bitumen; and VFBW, tiles made with vegetable fiber and bitumen being the outer face painted white. Covers were placed up mobile shelters with the following dimensions: 1 m length × 1 m width × 1 m height and cover pitch of 30°. The environment was evaluated through thermal comfort indexes: enthalpy (H), temperature and humidity index (THI), black globe and humidity index (BGHI), mean radiant temperature (MRT) and thermal heat load (THL), and the measurement of thermal environmental variables (temperature of external (EST) and internal (IST) surface of the cover, dry bulb temperature (T db ), black globe temperature (T bg ), relative humidity (RH), and wind speedy (WS)). Data analysis was performed using PROC MIXED of SAS® by analysis of variance (ANOVA), followed by the Tukey test, at 5% of significance level. There was observed beneficial effect of the usage of shading, with a decrease in air temperature and thermal comfort indexes when compared with the unshaded environment. The materials presented different thermal behavior, with better results for PVC and VFBW, that presented lower internal (IST) and external surface temperature (EST), in addition to lower black globe temperature, thermal heat load, and black globe and humidity index. PVC and VFBW were the best types of covers evaluated, with significant decreased thermal comfort indexes.

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Section: Discussionsupporting

confidence: 89%

Thermal environment in mobile shelters with different cover types used for chicken housing at the semi-extensive rearing system

et al. 2020

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“…The study reveals that grazing under PV can increase land productivity up to 200% as well as provide a more animal welfare and friendly environment [135]. In line with the study of Andrew, Maia et al determined livestock shade preference, showing that animals spent more than 70% of their time under the shade from PV at irradiance values greater than 800 W/m 2 [136]. Agrivoltaics can benefit local biodiversity, creating a habitat for pollinators [137].…”

Section: Further Agri-pv Integrated Applicationsmentioning

confidence: 90%

Agrivoltaic Systems Design and Assessment: A Critical Review, and a Descriptive Model towards a Sustainable Landscape Vision (Three-Dimensional Agrivoltaic Patterns)

2021

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As an answer to the increasing demand for photovoltaics as a key element in the energy transition strategy of many countries—which entails land use issues, as well as concerns regarding landscape transformation, biodiversity, ecosystems and human well-being—new approaches and market segments have emerged that consider integrated perspectives. Among these, agrivoltaics is emerging as very promising for allowing benefits in the food–energy (and water) nexus. Demonstrative projects are developing worldwide, and experience with varied design solutions suitable for the scale up to commercial scale is being gathered based primarily on efficiency considerations; nevertheless, it is unquestionable that with the increase in the size, from the demonstration to the commercial scale, attention has to be paid to ecological impacts associated to specific design choices, and namely to those related to landscape transformation issues. This study reviews and analyzes the technological and spatial design options that have become available to date implementing a rigorous, comprehensive analysis based on the most updated knowledge in the field, and proposes a thorough methodology based on design and performance parameters that enable us to define the main attributes of the system from a trans-disciplinary perspective.

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“…The solar resource data is presented in Figure 2, this energy is important because of the all-year permanent solar radiation the zone receives, and taking advantage of enough space to install solar photovoltaic panels (16) .…”

Section: Distributed Energy Resourcesmentioning

confidence: 99%

Optimization of the implementation design of distributed energy resources in micro-grids

Robalino

Andrade

2021

inycomp

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This article develops a study about the energy resources available in microgrids, extracting and analyzing data form satellite databases, in order to apply it to the technologies available. On the other hand, a demand estimation is carried out based on measurements, and finally an optimization is performed to determine the most economically profitable option with the correspondent graphs and analysis.

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Photovoltaic panels as shading resources for livestock

Cited by 74 publications

References 32 publications

Thermal environment in mobile shelters with different cover types used for chicken housing at the semi-extensive rearing system

Thermal environment in mobile shelters with different cover types used for chicken housing at the semi-extensive rearing system

Agrivoltaic Systems Design and Assessment: A Critical Review, and a Descriptive Model towards a Sustainable Landscape Vision (Three-Dimensional Agrivoltaic Patterns)

Optimization of the implementation design of distributed energy resources in micro-grids

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