Renewable Energy Supply and Demand for the City of El Gouna, Egypt

Wellmann, Johannes; Morosuk, Tatiana

doi:10.3390/su8040314

Cited by 10 publications

(3 citation statements)

References 11 publications

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“…The k-medoids clustering technique is used based on the hourly demand profiles and hourly wind and solar capacity factors for every country. The hourly demand profiles are synthetic based on the yearly demand from [3] and hourly profiles from [22]. Hourly capacity factors that reflect the profiles for wind and solar for every node of the grid data have been downloaded from [23] and implemented into the model.…”

Section: Temporal Datamentioning

confidence: 99%

Transition of the African Power System to Renewable Energies – A Case Study

Robert¹,

Gaugl²,

Wogrin³

et al. 2022

Preprint

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Africa's power system faces many challenges: Half of all Africans are without access to electricity, the infrastructure needs investments to strengthen its reliability and lessen the frequent electricity disruptions, adaptation of the system for one of the world's highest power consumption growth rates and an urge to transition the currently highly fossil-fuel dependent system to renewable energies. Based on a detailed representation of the power system, incorporating the unique technical and economic characteristics of the electric power sector, we model a transition to renewable energies in Africa. An addition of 180.2 GW of wind power and 42.1 GW of PV is necessary to cover the current demand in the modeled countries purely by renewable energy sources.

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Section: Temporal Datamentioning

confidence: 99%

Transition of the African Power System to Renewable Energies – A Case Study

Robert¹,

Gaugl²,

Wogrin³

et al. 2022

Preprint

View full text Add to dashboard Cite

show abstract

“…The continuously growing population and energy demand has encouraged many countries around the world, especially the developing ones, to make compelling efforts for exploring the alternative sources of energy [1][2][3][4]. These efforts also come with a vision to mitigate the effects of climate change due to the growing CO 2 emissions from existing non-renewable energy sources [5].…”

Section: Introductionmentioning

confidence: 99%

A Comparative Study on the Performance of a Horizontal Axis Ocean Current Turbine Considering Deflector and Operating Depths

Maldar

Ean

et al. 2020

Sustainability

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Several different designs and prototypes of ocean current turbines have been tested over recent years. For every design test, emphasis is given to achieving an optimum power output from the flow. In this study, the performance of a Horizontal Axis Ocean Current Turbine (HAOCT) has been investigated using three-dimensional Computational Fluid Dynamics (CFD) simulations for three cases, namely, (1) a turbine without a deflector, (2) a turbine with a deflector, and (3) a turbine with a deflector operating at a higher fluid depth. The turbine design was modeled in DesignModeler software and simulations were carried out in commercial CFD software Flow-3D. The Torque Coefficient (Cm) and Power Coefficient (Cp) for the turbine have been investigated for a certain range of Tip-Speed Ratios (TSRs) in a flow velocity of 0.7 m/s. Furthermore, comparisons have been made to demonstrate the effect of the deflector on the performance of the turbine and the influence of a higher fluid pressure on the same. The results from the simulations indicate that the higher value of Cp was achieved for Case 2 as compared to the other two cases. The findings from the study indicate that the use of the deflector enhances the performance of the turbine. Furthermore, a higher fluid pressure acting on the turbine has a significant effect on its performance.

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“…There is a great deal of research into seawater desalination using seawater evaporation and condensation by temperature difference [1,2,4,7,8,9,10,11,12,13,14,15,16,17,19]. This study used a formulation to calculate the transfer of mass and energy in evaporation and condensation parts, technically studied vapor transportation for long distances.…”

Section: Introductionmentioning

confidence: 99%

Study of sweetened seawater transportation by temperature difference

Aghazadeh

Attarnejad

2020

Heliyon

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This study evaluates the vapor transportation by transmission pipelines during seawater desalination. This study seeks to reach a high rate of water transportation during desalination. Hence, the results obtained from this research are closer to reality than other analyses. Other benefits of this research include increasing efficiency, studying the element-to-element transmission, and considering flow as a compression case. The water desalination system comprises three parts of evaporation, transportation, and condensation. In the transportation part, equations of continuity, momentum, and energy are implemented, and the temperature of the vapor is calculated at the beginning of the condensation pipe. Other achievements of this study include the division of transportation lines to small elements and the implementation of vapor condensation in transportation lines. This study used pipelines with diameters of 1, 2, and 4 m to transmit vapor to Ramsar city and the heights of Takhte Soleiman, 16 km away from the city with the elevation of 2000 m. The results show that diameter, transportation length, and temperature differences are, respectively, the most influential factors on the efficiency of sub-atmospheric vapor transportation. The outcomes of this study were presented as the outflow of condensed water at the destination. Considering the margin of safety in calculations, it was scientifically proved that the results obtained in this study were approximately 10% more than results derived from other studies in the literature that are based on the incompressibility of fluids.

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Renewable Energy Supply and Demand for the City of El Gouna, Egypt

Cited by 10 publications

References 11 publications

Transition of the African Power System to Renewable Energies – A Case Study

Transition of the African Power System to Renewable Energies – A Case Study

A Comparative Study on the Performance of a Horizontal Axis Ocean Current Turbine Considering Deflector and Operating Depths

Study of sweetened seawater transportation by temperature difference

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