Examples of Solar Hybrid System Layouts, Design Guidelines, Energy Performance, Economic Concern, and Life Cycle Analyses

Aktaş, Ahmet; Kirçiçek, Yağmur

doi:10.1016/b978-0-323-88499-0.00013-6

Cited by 3 publications

(1 citation statement)

References 40 publications

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“…Obtaining energy from the outside allows for energy autonomy, however, it is closely related to the location and time of flight [5]. The use of solar cells allow for increasing the flight duration but it also has a numerous limitations which have to be taken into account during designing the power supply systems [6][7][8][9]. Renewable energy technologies are certainly the direction in which UAVs will follow.…”

Section: Introductionmentioning

confidence: 99%

Simulation Model of Solar Powered UAV

Mateja

Skarka

2022

Advances in Transdisciplinary Engineering

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This article presents the results of work of power supply system of an unmanned aerial vehicle (UAV) powered by solar cells. The goal of work was to develop simulation model which allow us to calculate the flight time for the input assumptions. The UAV power supply system main elements are photovoltaic cells and batteries. In the model we also included energy consumption devices (electric motors, servos, steering and measuring devices) and electricity converters. Adapting the model to the proposed technical system required detailed identification tests of the components used in the project. For this purpose, identification tests were carried out on test stands, in particular, on photovoltaic cells and battery cells. The proposed simulation model combines knowledge in the field of aerodynamics, flight mechanics, electrical engineering, electronics, avionics and photovoltaic and astronomy supplemented with the characteristics of individual components identified in laboratory tests. This data allow us to prepare more accurate and real simulation model. The irradiation charts allowed for the analysis of how long the UAV will be able to flight for a given location and time and simulate different scenarios of flights. The case study UAV is TwinStratos (TS) – High Altitude Long Endurance Unmanned Aerial Vehicle (HALE UAV) designed by the team we are members of. TS is able to achieve 20 km and flight in the stratosphere.

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Section: Introductionmentioning

confidence: 99%

Simulation Model of Solar Powered UAV

Mateja

Skarka

2022

Advances in Transdisciplinary Engineering

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Efficiency Decreases in a Laminated Solar Cell Developed for a UAV

2022

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Achieving energy autonomy in a UAV (unmanned aerial vehicle) is an important direction for aerospace research. Long endurance flights allow for continuous observations, taking of measurements and control of selected parameters. To provide continuous flight, a UAV must be able to harvest energy externally. The most popular method to achieve this is the use of solar cells on the wings and structure of the UAV. Flexible solar cells mounted on the surface of the wings can be damaged and contaminated. To prevent these negative changes, it is necessary to apply a protective coating to the solar cells. One of the more promising methods is lamination. To properly carry out this process, some parameters have to be appropriately adjusted. The appropriate selection of temperature and feed speed in the laminator allows a PV (photovoltaic) panel to be coated with film, minimizing any defects in the structure. Covering PV panels with film reduces the performance of the solar cells. By measuring the current–voltage characteristics, data were obtained showing the change in the performance of solar cells before and after lamination. In the case of testing flexible PV panels, the efficiency decreased from 24.29 to 23.33%. This informed the selection of the appropriate number of solar cells for the UAV, considering the losses caused by the lamination process.

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A review of PV solar energy system operations and applications in Dhofar Oman

Alhousni

Ismail

Okonkwo

et al. 2022

AIMSE

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<abstract> Energy is seen as one of the most determinant factors for a nation's economic development. The Sun is an incredible source of inexhaustible energy. The efficiency of the conversion and application of Photovoltaic (PV) systems is related to the PV module's electricity generation and the location's solar potentials. Thus, the solar parameters of a region are important for feasibility studies on the application of solar energy. Although solar energy is available everywhere in the world, countries closest to the equator receive the greatest solar radiation and have the highest potential for solar energy production and application. Dhofar in Salalah-Oman is one of the cities in Oman with high temperatures all year round. The city has been reported to exhibit a maximum solar flux of about 1360 w/m2 and a maximum accumulative solar flux of about 12,586,630 W/m2 in March. These interesting solar potentials motivated the call for investment in solar energy in the region as an alternative to other non-renewable energy sources such as fossil fuel-powered generators. As a consequence, several authors have reported on the application of different solar energy in the different cities in Oman, especially in remote areas and various results reported. Therefore, the present review highlighted the achievements reported on the availability of solar energy sources in different cities in Oman and the potential of solar energy as an alternative energy source in Dhofar. The paper has also reviewed different PV techniques and operating conditions with emphasis on the advanced control strategies used to enhance the efficiency and performance of the PV energy system. Applications of standalone and hybrid energy systems for in-house or remote power generation and consumption in Dhofar were discussed. It also focused on the relevance of global radiation data for the optimal application of PV systems in Dhofar. The future potential for the full application of solar systems in the region was mentioned and future work was recommended. </abstract>

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Examples of Solar Hybrid System Layouts, Design Guidelines, Energy Performance, Economic Concern, and Life Cycle Analyses

Cited by 3 publications

References 40 publications

Simulation Model of Solar Powered UAV

Simulation Model of Solar Powered UAV

Efficiency Decreases in a Laminated Solar Cell Developed for a UAV

A review of PV solar energy system operations and applications in Dhofar Oman

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