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

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

doi:10.1016/j.energy.2021.120117

“…According to Elhani et al [24], productive tillers number depends on natural resources such as water, nutrients, and light. Grain yield up to 70% came from the number of productive tillers [25].…”

Section: Discussionmentioning

confidence: 99%

“…Balanced fertilization could increase production, improve the quality of agricultural products, fertilizer efficiency, soil fertility, and avoid environmental pollution. Fertilization combination greatly affected the growth of rice crops [25].…”

Section: Discussionmentioning

confidence: 99%

Maximizing the Yield of Black Cute Rice using Human Urine and NPK Fertilizer

Aziez¹

2022

TOASJ

0

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Background: The nutrient is one of the most important elements for plants. Lack of nutrients cause thegrowth and yield will not be optimal. The use of organic liquid human urine and NPK fertilizer are a source of micro and macronutrients to increase the yield of black cute rice. Objective: This study aims to determine the best treatment combination of human urine and NPK fertilizer dose to maximize the yield of black cute rice. Methods: The research was arranged in a randomized complete block design (RCBD) with two factors and three replications. The first factor was dose of human urine fertilizer, which consisted of three levels, namely, 0, 500, and 1000 L ha-1. The second factor was the dose of NPK fertilizer, which consisted of three levels, namely, 0, 150, and 300 kg ha-1. Results: The results showed that a combination of organic liquid human urine and NPK fertilizer could increase the productive tillers number, canopy dry weight, and grain dry weight of black cute rice. The highest grain dry weight was found at the combination between ferlilizer dose of human urine of 1,000 L ha-1 and NPK of 300 kg ha-1 and yielded the maximum grain dry weight of 8.633 t ha-1 in Litosol soil. Conclusion: The research fundings that the combination between human urine of 1,000 L ha-1 and NPK of 300 kg ha-1 can maximize the yield of black cute rice. For future research, we recommend that the combination between human urine of 1,000 L ha-1 and NPK compound of 300 kg ha-1 can use in other rice varieties.

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“…Solar ice making could be a good alternative to battery storage and using biogas to stabilise cooling capacity [71]. On-site solar-powered processing like milling [70], drying [72], extraction (pressing) [73], fermentation [74], prepacking, sterilisation, cooking, preservation (sealing), etc. [75], can reduce need for cold storage capacity and that in general and create added value.…”

Section: Harvesting Storage and Processingmentioning

confidence: 99%

A Mini-Review of Current Activities and Future Trends in Agrivoltaics

Klokov¹,

Loktionov²,

Loktionov³

et al. 2023

Preprint

8

0

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Agrivoltaics (Agri-PV, AV) – the joint use of land for the production of agricultural products and energy – has recently been rapidly gaining popularity, as it can significantly increase income per unit of land area. In a broad sense, AV systems can include converters of not only solar, but also energy from any other local renewable source, including bioenergy. Current approach to AV represents an evolutionary development of agroecology and integrated PV power supply to the grid. That results in nearly doubled income per unit area. While AV could provide a basis for revolution in large-scale unmanned precision agriculture and smart farming which is impossible without on-site power supply, chemical fertilisation and pesticides reduction, and yield processing on-site. These approaches could change the logistics and the added value production chain in agriculture dramatically, and so, reduce its carbon footprint. Utilisation of decommissioned solar panels in AV could make the technology twice cheaper and postpone the need for bulk PV recycling. Unlike the mainstream discourse on the topic, this review feature is in focusing on the possibilities for AV to be stronger integrated into agriculture that could also help in relevant legal collisions (considered as neither rather than both components) resolution.

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“…The depth and scope of an LCA study can significantly differ depending on the study's objectives. For the current study, the system boundaries encompass the production of biodiesel, fuel preparation, and the combustion phase of the fuel samples [48]. The system boundary is presented in Figure 5.…”

Section: Life Cycle Assessmentmentioning

confidence: 99%

The Effect of Biodiesel, Ethanol, and Water on the Performance and Emissions of a Dual-Fuel Diesel Engine with Natural Gas: Sustainable Energy Production through a Life Cycle Assessment Approach

Hashemi-Nejhad,

Najafi,

Ardabili

et al. 2023

International Journal of Energy Research

1

0

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Diesel fuel (DF) is a significant power supply in agricultural, industrial, and transportation applications. Establishing sustainable and renewable fuel substitutes for diesel has become increasingly common due to the rising expense of petroleum resources and the pollution rate crises. A biodiesel-DF mixture in a dual-fuel (DuF) diesel engine (DE) can bring favorable environmental results. In the present study, three rates of ethanol (0, 2, and 4%), two rates of biodiesel (0 and 5%), and four rates of water (0, 0.3, 0.6, and 0.9%) were blended with DF. All these samples were considered pilot fuel (PF) in the DuF combustion process with an 80% natural gas (NG) replacement percentage. The combustion process was investigated from engine emissions and performance, power cost, and life cycle assessment (LCA) to obtain a sustainable fuel formulation. As a result, water, ethanol, and the combination of water-ethanol and NG can enhance the DE’s performance by rising the inside pressure of the cylinder. The presence of oxygen content in ethanol can improve the combustion process by pushing the combustion towards complete combustion. The optimum engine performance point at full load was obtained with a fuel sample containing 1.57% biodiesel, 4.38% ethanol, 1.1% water, and 80% NG. In optimum condition, the brake power (BP) was 24.16 kW, and the brake-specific fuel consumption (BSFC) was 60.64 g/kWh. This fuel sample produces 0.46, 364.08, 1.66, and 1088.29 g/kWh of BSCO, BSCO2, BSNOx, and BSO2, respectively. At this point, the energy production cost was $0.783/kWh. The environmental impacts of the combustion process at optimal fuel formulation were 0.34249, 1.00 E + 02 , 1.53 E + 00 , and 1.94 E − 06 , respectively, for ecosystem quality (EQ) (PDF ∗ m2 ∗ yr), resources (R) (MJ primary), climate change (CCh) (kg CO2 eq), and human health (HH) (DALY). Accordingly, the best fuel combination was selected to be NG+B1.5E4.3W1.1.

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

Cited by 88 publications

References 102 publications

Maximizing the Yield of Black Cute Rice using Human Urine and NPK Fertilizer

Maximizing the Yield of Black Cute Rice using Human Urine and NPK Fertilizer

A Mini-Review of Current Activities and Future Trends in Agrivoltaics

The Effect of Biodiesel, Ethanol, and Water on the Performance and Emissions of a Dual-Fuel Diesel Engine with Natural Gas: Sustainable Energy Production through a Life Cycle Assessment Approach

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