Evaluation of Energy Potential from Coffee Pulp in a Hydrothermal Power Market through System Dynamics: The Case of Colombia

Martínez-Ruiz, Yessenia; Manotas-Duque, Diego Fernando; Gómez, Juan Carlos Osorio; Ramírez-Malule, Howard

doi:10.3390/su14105884

Cited by 6 publications

(3 citation statements)

References 73 publications

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“…The oceans cover more than 70% of Earth's energy. In them you can find two types of energy: thermal that comes from solar heating and mechanical from tides and waves (Martínez- Ruiz et al, 2022). The sun warms the surface of the oceans in a very high proportion, compared to the deep areas, in this way it creates a difference in temperatures that can also be exploited, but is insecure due to the phenomena to which the oceans are subject.…”

Section: Energy From the Oceansmentioning

confidence: 99%

Evolution, Challenges, and Perspective in the Implementation of Projects with Renewable Energy Sources: Colombia Case

Rocha

Boiler

Pizarro

et al. 2022

IJEEP

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This work quantifies the evolution in the implementation and development of renewable energies in Colombia, as well as evidence the current challenges and development prospects. The high demand for electricity in Colombia is increasing due to the great increase in population, industry and commerce, which generates greater energy consumption and as a consequence economic, social and environmental problems. The objective of this study was to analyze the behavior of the energy projects submitted to the Mining Energy Planning Group (UPME) during the last 15 years until July 2022, as well as to study the research areas with the highest performance. technology and the corresponding radiation intensity. In addition, it shows an historic information about the projects presented both not in force as of the date of closing of this investigation, classified according to their source, according to their range of power and according to its stage of implementation, finally, we made a synthesis of the new regulations governing the motivation and implementation of projects with renewable energy sources, being as this work a very good source of reference for further studies of the implementation of renewable energy sources in Colombia.

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Section: Energy From the Oceansmentioning

confidence: 99%

Evolution, Challenges, and Perspective in the Implementation of Projects with Renewable Energy Sources: Colombia Case

Rocha

Boiler

Pizarro

et al. 2022

IJEEP

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“…Previous research has identified some of these potential streams. The potential of coffee waste to produce energy has previously been simulated using system dynamics [7]. In 2020, a study of the potential for converting around 8.7 tons of coffee waste to added-value products such as briquettes was undertaken [8].…”

Section: Introductionmentioning

confidence: 99%

Study on biogas production from coffee wastes and cow-dung fermentation and its use towards reducing emissions from coffee roasting

Irawan

McLellan

2023

IOP Conf. Ser.: Earth Environ. Sci.

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The production of high-quality coffee for export is an important industry in Indonesia. However, coffee processing produces unavoidable waste and emissions to the environment; 1 kg of cherry beans (CB) needs 3 kg of water for processing (2 kg for CB selection by floating, 1kg for wash-fermentation). One kg CB generates several waste and product streams: cherry skin (44%), beans (20%), parchment (5%), pulp (4%), silverskin (0.5%), and volatiles (26.5%). This study utilized the wastewater from the washed-coffee processing such as fermentation wash water and coffee pulp. The materials were mixed with cow dung from local farms for anaerobic processing in a one-gallon digester. This research took into consideration three variations: cow dung mixed with water in the same amount (1:1); cow dung and fermentation washing wastewater (1:1); and cow dung and pulp (1:1). The resulting biogas was analyzed with gas chromatography for comparison. Biogas yield was used to estimate the potential for supplying heat and electricity for use in the coffee roasting process. Alternative energy sources were also considered in the following combinations: biogas-electricity (solar panels) and LPG-electricity (fossil). A life cycle assessment was performed on scenarios to calculate global warming potential (GWP). This study will be used as a pilot project toward a zero-waste and zero-emission coffee industry. The scenario with the lowest GWP can be used as a reference for the sustainability of coffee production.

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“…In the specific case of Colombia, which is a country widely known as a producer of coffee and, to a lesser extent, sugar, rice, cotton, corn, and shrimp, the waste generated in these agroindustries could be used to obtain this type of polymeric material. For example, in the case of coffee, this industry only uses the grain, which is equivalent to 5% of the fruit, leaving 95% waste, where approximately 60% of this is cellulose [ 8 , 9 ].…”

Section: Introductionmentioning

confidence: 99%

Biopolymers as a Potential Alternative for the Retention of Pollutants from Vinasse: An In Silico Approach

Aristizabal,

Ciro,

Liscano

et al. 2023

Polymers

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Vinasse, a waste from the bioethanol industry, presents a crucial environmental challenge due to its high organic matter content, which is difficult to biodegrade. Currently, no sustainable alternatives are available for treating the amount of vinasse generated. Conversely, biopolymers such as cellulose, carboxymethylcellulose, and chitosan are emerging as an interesting alternative for vinasse control due to their flocculating capacity against several organic compounds. This study seeks to determine the thermodynamic behavior of in silico interactions among three biopolymers (cellulose, carboxymethylcellulose, and chitosan) regarding 15 organic compounds found in vinasse. For this, the Particle Mesh Ewald (PME) method was used in association with the Verlet cutoff scheme, wherein the Gibbs free energy (ΔG) was calculated over a 50 ns simulation period. The findings revealed that cellulose showed a strong affinity for flavonoids like cyanidin, with a maximum free energy of −84 kJ/mol and a minimum of −55 kJ/mol observed with phenolic acids and other flavonoids. In contrast, chitosan displayed the highest interactions with phenolic acids, such as gallic acid, reaching −590 kJ/mol. However, with 3-methoxy-4-hydroxyphenyl glycol (MHPG), it reached an energy of −70 kJ/mol. The interaction energy for flavonoid ranged from −105 to −96 kJ/mol. Finally, carboxymethylcellulose (CMC) demonstrated an interaction energy with isoquercetin of −238 kJ/mol, while interactions with other flavonoids were almost negligible. Alternatively, CMC exhibited an interaction energy of −124 kJ/mol with MHPG, while it was less favorable with other phenolic acids with minimal interactions. These results suggest that there are favorable interactions for the interfacial sorption of vinasse contaminants onto biopolymers, indicating their potential for use in the removal of contaminants from the effluents of the bioethanol industry.

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Evaluation of Energy Potential from Coffee Pulp in a Hydrothermal Power Market through System Dynamics: The Case of Colombia

Cited by 6 publications

References 73 publications

Evolution, Challenges, and Perspective in the Implementation of Projects with Renewable Energy Sources: Colombia Case

Evolution, Challenges, and Perspective in the Implementation of Projects with Renewable Energy Sources: Colombia Case

Study on biogas production from coffee wastes and cow-dung fermentation and its use towards reducing emissions from coffee roasting

Biopolymers as a Potential Alternative for the Retention of Pollutants from Vinasse: An In Silico Approach

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