Examinando por Autor "Myyas, Ra'ed Nahar"
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Ítem A four-stage framework for optimal scheduling strategy of smart prosumers with vehicle-to-home capability under real time pricing based on interval optimization(Wiley, 2023-09) Tostado-Véliz, Marcos; Ghadimi, Ali Asghar; Miveh, Mohammad Reza; Myyas, Ra'ed Nahar; Jurado-Melguizo, FranciscoWith the emergence of the Smart Grid concept, utility companies require more active participation of home users in the power sector. This changing paradigm is enabled by the wide deployment of multiple home assets such as small renewable-based generators or storage facilities. In this context, consumers are no longer conceived as pure loads but also active agents that can exchange energy with the grid. To promote this active participation, utility companies promote different price-based demand response programs to change the consumer patterns on pursuing a more efficient and economic system operation. In this regard, home energy management programs are becoming an essential tool for efficiently managing the different home users while addressing multiple demand response goals at minimum cost. In essence, a home energy management system is a computational optimization tool, which has to handle multiple uncertainties brought by weather forecast or energy pricing. This paper tackles this issue by developing a novel robust home energy management program based on interval optimization. In contrast to other related approaches, the proposal avoids the explicit use of interval arithmetic. Instead, the different uncertain parameters are sequentially incorporated into the scheduling task through different stages and interval-based formulation. The developed methodology incorporates weather, load, energy pricing and plug-in electric vehicle related uncertainties. A benchmark case study in a smart prosumer layout serves to prove the effectiveness of the new approach.Ítem A novel solar panel cleaning mechanism to improve performance and harvesting rainwater(Elsevier, 2022-05) Myyas, Ra'ed Nahar; Al-Dabbassa, Mohammad; Tostado-Véliz, Marcos; Jurado-Melguizo, FranciscoFirst generation Photovoltaic (PV) systems need regular washing to avoid efficiency degradation. Dust deposition on the surface limits solar penetration into photovoltaics and consequently the PV output. Efficiency may fall by 50% after a month without cleaning the modules. This effect strongly depends on the area, being desert climates more problematic because of the proliferation of dust particles and eventual high wind speeds. This research aims to illustrate the idea of an innovative intelligent device with wide applications and advantages, which improves the efficiency of solar cells by a self-cleaning mechanism, keeping the temperature of solar cells from rising, recycling the cleaning water, and harvesting rainwater falling. In this research, an experiment was performed in the city of Salt (Jordan) to investigate the purification of solar cells at the energy production plant above the Najashi Mosque. To clean the dust periodically, an automated cleaner was installed that detects the dust on the solar panel and automatically cleans the module. Various cleaning methods were compared: manual cleaning, automatic cleaning, manual injection water, compressed air. Some outstanding features of the new proposal are identified, making it the ideal device for resolving cleaning difficulties, high temperatures, and increasing solar cell performance. It can be also utilized to gather rainwater by employing the vast areas of solar cells scattered over the world. The findings of this study may help in preserving the environment by harvesting sun and rainwater, enhancing PV efficiency, and achieving decarbonization in the energy industry.Ítem Review of Bioenergy Potential in Jordan(MDPI, 2023-01) Myyas, Ra'ed Nahar; Tostado-Véliz, Marcos; Gómez-González, Manuel; Jurado-Melguizo, FranciscoDespite the enormous efforts put into practice by governmental entities, most of the energy consumption worldwide proceeds from fossil fuels. In this regard, there is a clear need to advance toward the use of cleaner energies. This situation is especially critical in developing countries, where a high population, increased commercial and industrial activities, and rising greenhouse gas (GHG) emissions are major concerns. This paper focuses on reviewing the current energy map in Jordan, one of the developing countries in the Southwest Asia area. Jordan generates 2.7 million tons of municipal solid waste annually, which can cause a variety of environmental problems rather than benefit the energy industry or the country’s economy. Jordan uses biomass energy to provide just 0.1% of its overall energy needs. Presently, produced energy comprises logs, chips, bark, and sawdust is made up of around 44% wood. Jordan has a high potential for producing biomass in the future. About 96% of the biomass is made up of animal manure, followed by olive trees and pomace, with a percentage of 1.8%. This work evaluates the theoretical energy potential of waste in Jordan based on previous studies. Moreover, this article looks at the biomass potential in Jordan, emphasizing how the country may become one of the top producers of bioenergy in terms of waste and identifying procedures to assess the biogas potential for common substrates in Jordanian communities (food and agricultural waste). Finally, some further recommendations are provided for developing the biomass sector in Jordan.