energy solution
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2021 ◽  
Author(s):  
Ifeanyi Jude Njoku ◽  
Chibueze Paul Onyenegecha ◽  
Chioma J Okereke ◽  
Ekwevugbe Omugbe ◽  
Emeka Onyeocha

Abstract The study presents the thermodynamic properties of the Iodine and Scandium Flouride molecules with molecular Deng-Fan potential. The bound state energy solution of the radial Schrodinger equation is obtained via the formula method. The partition function and other thermodynamic properties are evaluated via the Poisson summation approach. The numerical values of energy of the I2 and ScF molecules are found to be in agreement with results obtained from other methods in the literature. The results further show that the partition function decreases, and then converges to a constant value as temperature increases.


2021 ◽  
Vol 14 (1) ◽  
pp. 166
Author(s):  
Amit Kumer Podder ◽  
Sayma Afroza Supti ◽  
Sayemul Islam ◽  
Maria Malvoni ◽  
Arunkumar Jayakumar ◽  
...  

The popularity of electric vehicles (EVs) is increasing day by day in the modern world. The charging of EVs from grid-connected charging stations causes a considerable power crisis in the grid. Integrating renewable energy resources (RESs) with conventional energy sources in the power grid is now considered feasible to reduce peak power demand and the inevitable emission effect. Hence, this paper presents an energy solution for EV charging with two RESs, namely, solar photovoltaic (PV) and biogas. HOMER software is utilized to analyze the potency and functionality of solar PV and biogas-based EV charging stations. The proposed system consists of a solar PV system, two biogas engine generators, and a bidirectional converter with battery storage. The variation of different costs, such as net present cost (NPC), initial cost, and cost of energy (COE) for different solar PV systems (3 kW, 4.5 kW, 6 kW, and 9 kW), are analyzed in HOMER software. The 4.5 kW solar PV system is finally selected as the NPC, initial cost, and COE are $93,530, $19,735, and $0.181, respectively, which is efficient. The system’s lifetime is 25 years, where an initial 12 years is required to overcome the system cost, and the remaining 13 years will provide financial benefits. The study also illustrates the effect of solar irradiance, biomass, and the change in the load of the energy management system. The techno–economic analysis shows that the proposed scheme can be an effective energy solution. The emission of greenhouse gases (GHGs), such as CO2, CO, SO2, and NOX, is reduced considerably compared to other existing techniques. The study is expected to be beneficial in renewables-based EV charging systems with techno–economic and environmental feasibility.


2021 ◽  
pp. 103571
Author(s):  
Abdullah Alsalemi ◽  
Yassine Himeur ◽  
Faycal Bensaali ◽  
Abbes Amira

Mathematics ◽  
2021 ◽  
Vol 9 (16) ◽  
pp. 1973
Author(s):  
Weichun Bu ◽  
Tianqing An ◽  
Guoju Ye ◽  
Chengwen Jiao

In this article, we study a class of Choquard–Kirchhoff type equations driven by the variable s(x,·)-order fractional p1(x,·) and p2(x,·)-Laplacian. Assuming some reasonable conditions and with the help of variational methods, we reach a positive energy solution and a negative energy solution in an appropriate space of functions. The main difficulties and innovations are the Choquard nonlinearities and Kirchhoff functions with the presence of double Laplace operators involving two variable parameters.


Heliyon ◽  
2021 ◽  
pp. e07838
Author(s):  
Panagiotis Triantafyllou ◽  
Christofis Koroneos ◽  
Emilia Kondili ◽  
Panagiotis Kollas ◽  
Dimitrios Zafirakis ◽  
...  

2021 ◽  
Vol 23 (07) ◽  
pp. 410-419
Author(s):  
Mukesh Kumar ◽  
◽  
Lokesh Rana ◽  
Amruta Pattnaik ◽  
◽  
...  

The energy-producing similarity between the photoelectric effect and photosynthesis makes them more important for humans and has a large environmental impact potential. Sunlight is common in both and its longevity makes them an important solution tool for many human issues. The energy need is one of the important ones. The various researches are going on such sunlight energy conversions, various techniques like Photo Voltaic (PV), Solar Thermal (ST), Solar Photovoltaic-thermal (PV/T) conversion are proposed. Researchers are also not able to achieve 100 % accuracy due to optical loss, thermal loss Recombination, Spectrum losses, and Impedance matching. Despite all these, it is found solar energy is a sustainable energy solution with the highest input capital, but with long durability, lower operational cost, and maintenance. The idea of the solar flexible trees is fit for meeting farmers’ energy demands as well as makes them energy producers. This not only creates another source of income for them but also helps in farming. Besides suggesting, this work also addresses the difficulties engaged with this design model and also proposes future research scope. The tighter coupling of land use and management and energy generator ensure us for farmer’s sustainable energy solution.


2021 ◽  
Vol 11 (4) ◽  
pp. 521-528
Author(s):  
Juan Camilo Barrera Hernández ◽  
Christian Moreno ◽  
Adalberto Ospino-Castro ◽  
Carlos Arturo Robles-Algarin ◽  
Juan Tobón-Perez

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