Techno-economic challenges of tidal energy conversion systems: Current status and trends

Segura, Eva; Morales, Rafael; Somolinos, J.A.; López, Alfonsa García

doi:10.1016/j.rser.2017.04.054

Cited by 97 publications

(41 citation statements)

References 59 publications

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“…Climate changes associated with the emission of carbon dioxide and other pollutants from the combustion of fossil fuels are the biggest environmental issue, but also there have been economic challenges in recent years (Oleszek et al 2015;Segura et al 2017).…”

Section: Introductionmentioning

confidence: 99%

Characterization and Influence of a Multi-enzymatic Biopreparation for Biogas Yield Enhancement

Oszust¹,

Pawlik²,

Janusz³

et al. 2017

BioResources

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A multi-enzymatic biopreparation of Trichoderma atroviride G79/11 origin was characterized. The fungus showed relatively high cellulase production in a soybean flour-cellulose-lactose medium. Subsequently, based on its post-culture liquid, the biopreparation of the enzyme mixture was developed and characterized. The liquid form of the enzyme mixture reached 22 U cm -3 of cellulolytic activity and its lyophilisate exhibited 1.09 U cm -3 at pH 5.1 and 50 °C. The enzyme mixture was characterized by the following activities: xylanase, β-glucosidase, carboxymethyl cellulase, polygalactouronase, pectinesterase, amylase, lactase, and protease. A method for an efficient conditioning process of organic waste (fruit processing waste, dairy sewage sludge, corn silage, and grain broth) for biogas yield enhancement using the enzyme mixture was proposed. The enzyme mixture increased the efficacy of biogas production by 30% when the lyophilizate (0.5 mg g -1 d.m.) was applied prior to fermentation. A method for conducting the enzymatic conditioning process of organic waste using the enzyme mixture as a pretreatment was proposed. This was part of the optimization of the methane fermentation process to increase the biogas yield. Consequently, after application of the biopreparation, the efficiency of anaerobic digestion of organic waste was improved.

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Section: Introductionmentioning

confidence: 99%

Characterization and Influence of a Multi-enzymatic Biopreparation for Biogas Yield Enhancement

Oszust¹,

Pawlik²,

Janusz³

et al. 2017

BioResources

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“…Indeed, due to the gravitational and rotational forces induced by the Earth, Sun, and Moon positions, ocean water moves horizontally according to cycles that are easily predictable, and which are related to the time and location on the Earth [2,30,31]. Water flow allows the submerged turbine rotation on which blades are mounted, similarly to the process used in wind turbines [2,28].…”

Section: Fundamentals Of Operating Processesmentioning

confidence: 99%

“…Extracting tidal kinetic energy can be carried out by several techniques, as explained and classified by many past papers [2,[26][27][28][29][30][31][33][34][35]. The following categories can be distinguished primarily, according to the type of device used.…”

Section: Main Technologies Currently Usedmentioning

confidence: 99%

“…In Horizontal Axis Marine Current Turbines (HAMCT), the turbine is composed of two or more blades rotating around an axis parallel to the water flow direction [26,28,29,31]. A list of projects is given by Zhang et al [33].…”

Section: Main Technologies Currently Usedmentioning

confidence: 99%

“…Vertical Axis Marine Current Turbines (VAMCT) can harness tidal flow from any direction with two, three, or more blades rotating around an axis that is perpendicular to the current direction [26,29,31,33]. Two main kinds of vertical axis turbines exist: the Darrieus turbine and the helical turbine (also called the Gorlov turbine) [26,31].…”

Section: Main Technologies Currently Usedmentioning

confidence: 99%

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Electrical Power Supply of Remote Maritime Areas: A Review of Hybrid Systems Based on Marine Renewable Energies

et al. 2018

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Abstract:Ocean energy holds out great potential for supplying remote maritime areas with their energy requirements, where the grid size is often small and unconnected to a continental grid. Thanks to their high maturity and competitive price, solar and wind energies are currently the most used to provide electrical energy. However, their intermittency and variability limit the power supply reliability. To solve this drawback, storage systems and Diesel generators are often used. Otherwise, among all marine renewable energies, tidal and wave energies are reaching an interesting technical level of maturity. The better predictability of these sources makes them more reliable than other alternatives. Thus, combining different renewable energy sources would reduce the intermittency and variability of the total production and so diminish the storage and genset requirements. To foster marine energy integration and new multisource system development, an up-to-date review of projects already carried out in this field is proposed. This article first presents the main characteristics of the different sources which can provide electrical energy in remote maritime areas: solar, wind, tidal, and wave energies. Then, a review of multi-source systems based on marine energies is presented, concerning not only industrial projects but also concepts and research work. Finally, the main advantages and limits are discussed.

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2021

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Techno-economic challenges of tidal energy conversion systems: Current status and trends

Cited by 97 publications

References 59 publications

Characterization and Influence of a Multi-enzymatic Biopreparation for Biogas Yield Enhancement

Characterization and Influence of a Multi-enzymatic Biopreparation for Biogas Yield Enhancement

Electrical Power Supply of Remote Maritime Areas: A Review of Hybrid Systems Based on Marine Renewable Energies

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