Prospects of solar systems in production chain of sunflower oil using cold press method with concentrating energy and life cycle assessment

Ashkan Nabavi-Pelesaraei, Hossein Azadi, Steven Van Passel, Zahra Saber, Fatemeh Hosseini-Fashami, Fatemeh Mostashari-Rad and Hassan Ghasemi-Mobtaker

Energy, 2021, vol. 223, issue C

Abstract: The aim of this study is determination of exergoenvironmental efficiency for using solar technologies in sunflower oil production in Iran. Accordingly, the applications of photovoltaic and photovoltaic/thermal systems were evaluated for both agricultural and industrial phases of sunflower oil production. Energy results reveal that 1 ton of sunflower oil consumes and produces about 180,354 and 39,400 MJ energy, respectively. About 86% of total energy consumption belongs to agricultural phase and electricity with 32%, has the highest share of total energy consumption. IMPACT 2002+ method and cumulative energy demand of life cycle assessment are applied to 3 defined scenarios including Present, photovoltaic and photovoltaic/thermal. Results indicate that total amounts of climate change in Present scenarios is 24537.53 kg CO2 eq. . The highest share of human health (90%), ecosystem quality (90%) and climate change (50%) in all scenarios belongs to direct emissions. Results also illustrates that total cumulative energy demand of Present, photovoltaic and photovoltaic/thermal scenarios are about 177,538, 99,054 and 132,158 MJ 1TSO−1, respectively. Furthermore, the most contribution of non-renewable resources and fossil fuels belongs to electricity (37%), nitrogen (52%) and photovoltaic/thermal panels (39%) in Present, photovoltaic and photovoltaic/thermal scenarios, respectively. Finally the photovoltaic scenario is the best environmental-friendly scenario.

Keywords: Cumulative energy demand; IMPACT 2002+; Life cycle assessment; Photovoltaic; Sunflower oil (search for similar items in EconPapers)
Date: 2021
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Citations: View citations in EconPapers (35)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:223:y:2021:i:c:s0360544221003662

DOI: 10.1016/j.energy.2021.120117

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