Modeling of optimal energy flows for systems with close integration of sea water desalination and renewable energy sources: Case study for Jordan

The frequency of power systems is very sensitive to load variations. Additionally, with the increased penetration of renewable energy sources in electrical grids, stabilizing the system frequency becomes more challenging. Therefore, Load Frequency Control (LFC) is used to keep the frequency within its acceptable limits. In this paper, an adaptive controller is proposed to enhance the system performance under load variations. Moreover, the proposed controller overcomes the disturbances resulting from the natural operation of the renewable energy sources such as Wave Energy Conversion System (WECS) and Photovoltaic (PV) system. The superiority of the proposed controller compared to the classical LFC schemes is that it has auto tuned parameters. The validation of the proposed controller is carried out through four case studies. The first case study is dedicated to a two-area LFC system under load variations. The WECS is considered as a disturbance for the second case study. Moreover, to demonstrate the superiority of the proposed controller, the dynamic performance is compared with previous work based on an optimized controller in the third case study. Finally in the fourth case study, a sensitivity analysis is carried out through parameters variations in the nonlinear PV-thermal hybrid system. The novel application of the adaptive controller into the LFC leads to enhance the system performance under disturbance of different sources of renewable energy. Moreover, a robustness test is presented to validate the reliability of the proposed controller.

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Regulatory Framework for Renewable Energy Sources in Ecuador Case Study Province of Manabí

International Journal of Social Sciences and Humanities ◽

10.21744/ijssh.v1i2.33 ◽

2017 ◽

Vol 1 (2) ◽

pp. 29

Author(s):

Marcos Lenin Dávila Cedeño ◽

María Gabriela Dávila Arteaga ◽

Antonio Vázquez Pérez ◽

Marcos Lenin Dávila Arteaga

Keyword(s):

Renewable Energy ◽

Social Relations ◽

Research Study ◽

Renewable Energy Sources ◽

Regulatory Framework ◽

Energy Sources ◽

National Study ◽

Support Measures ◽

The Social

The purpose of the research is to expose the nature that, in matters of law and social policy, justifies promoting the elaboration and adoption of a regulatory framework that favors the use of renewable energy sources, for the generation of electricity through case analysis in the Province of Manabí. For the accomplishment of the research study has taken into account a brief theoretical analysis on the fundamentals of the regulatory doctrine, where it exposes the conceptual framework of the law and its necessity for the good development of the social relations that derive from the use of the Renewable sources of energy. A study was carried out of the specific regulatory work carried out at the international level, in order to promote the adequate use of renewable energies, as well as a national study presenting an initial vision for the study and establishment of a specific regulatory framework for the case study of the province of Manabí, as well as a group of policies and support measures that could be adopted to promote the integrated use of renewable energy sources and their contribution to the national energy matrix.

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Regulatory framework for renewable energy sources in Ecuador case study province of Manabi

International Journal of Social Sciences and Humanities ◽

10.29332/ijssh.v1n2.33 ◽

2017 ◽

Vol 1 (2) ◽

pp. 29-42 ◽

Cited By ~ 1

Author(s):

Marcos Lenin Davila Cedeno ◽

Maria Gabriela Davila Arteaga ◽

Antonio Vazquez Perez ◽

Marcos Lenin Davila Arteaga

Keyword(s):

Renewable Energy ◽

Social Relations ◽

Research Study ◽

Renewable Energy Sources ◽

Regulatory Framework ◽

Energy Sources ◽

National Study ◽

Support Measures ◽

The Social

The purpose of the research is to expose the nature that, in matters of law and social policy, justifies promoting the elaboration and adoption of a regulatory framework that favors the use of renewable energy sources, for the generation of electricity through case analysis in the Province of Manabí. For the accomplishment of the research study has taken into account a brief theoretical analysis on the fundamentals of the regulatory doctrine, where it exposes the conceptual framework of the law and its necessity for the good development of the social relations that derive from the use of the Renewable sources of energy. A study was carried out of the specific regulatory work carried out at the international level, in order to promote the adequate use of renewable energies, as well as a national study presenting an initial vision for the study and establishment of a specific regulatory framework for the case study of the province of Manabí, as well as a group of policies and support measures that could be adopted to promote the integrated use of renewable energy sources and their contribution to the national energy matrix.

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Integrated Capacitive Deionization and Humidification-Dehumidification System for Brackish Water Desalination

Energies ◽

10.3390/en14227641 ◽

2021 ◽

Vol 14 (22) ◽

pp. 7641

Author(s):

Sadam-Hussain Soomro ◽

Yusufu Abeid Chande Jande ◽

Salman Memon ◽

Woo-Seung Kim ◽

Young-Deuk Kim

Keyword(s):

Renewable Energy ◽

Salt Concentration ◽

Brackish Water ◽

Waste Heat ◽

Renewable Energy Sources ◽

Water Desalination ◽

Energy Sources ◽

Capacitive Deionization ◽

Combined System ◽

Flow Rates

A hybrid capacitive deionization and humidification-dehumidification (CDI–HDH) desalination system is theoretically investigated for the desalination of brackish water. The CDI system works with two basic operations: adsorption and regeneration. During adsorption, water is desalted, and during the regeneration process the ions from electrodes are detached and flow out as wastewater, which is higher in salt concentration. This wastewater still contains water but cannot be treated again via the CDI unit because CDI cannot treat higher-salinity waters. The discarding of wastewater from CDI is not a good option, since every drop of water is precious. Therefore, CDI wastewater is treated using waste heat in a process that is less sensitive to high salt concentrations, such as humidification-dehumidification (HDH) desalination. Therefore, in this study, CDI wastewater was treated using the HDH system. Using the combined system (CDI–HDH), this study theoretically investigated brackish water of various salt concentrations and flow rates at the CDI inlet. A maximum distillate of 1079 L/day was achieved from the combined system and the highest recovery rate achieved was 24.90% from the HDH unit. Additionally, two renewable energy sources with novel ideas are recommended to power the CDI–HDH system.

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