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Wyszukujesz frazę "Alayi, R." wg kryterium: Autor


Wyświetlanie 1-2 z 2
Tytuł:
Perormance evaluation of liquid-cooled photovoltaic system using numerical method
Autorzy:
Khanjari, Y.
Kasaeian, A.
Pourfayaz, F.
Alayi, R.
Powiązania:
https://bibliotekanauki.pl/articles/957951.pdf
Data publikacji:
2016
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
photovoltaic thermal
water-cooled
simulation
performance
Opis:
The purpose of present study is establishing a simulation model to consider the performance of a water photovoltaic thermal system (PV/T) via the computational fluid dynamics method (CFD). The proposed model includes a water riser tube and an absorber plate to consider the conduction and convection heat transfer mechanisms. The simulation procee was carried out in the ANSYS FLUENT software. The effects of two different parameters on the efficiency and performance of the system were investigated numercically. The performance of the PV/T system versus the changes on the absorbed radiation on the plate and the inlet fluid temperature were analyzed. The temperature distribiution of different sections of the system was obtained. For validation of the presented method, a comparison study was carried out with the experimental results in the literature; satisfactory convergences were found between the measured data and the experimental results.
Źródło:
Advances in Science and Technology. Research Journal; 2016, 10, 32; 184-192
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Designing a PID controller to control a fuel cell voltage using the imperialist competitive algorithm
Autorzy:
Shamel, A.
Marefati, M.
Alayi, R.
Gholaminia, B.
Rohl, H.
Powiązania:
https://bibliotekanauki.pl/articles/101872.pdf
Data publikacji:
2016
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
imperialist competitive algorithm
PEM fuel cell
optimized voltage control
PID controller
Opis:
In this article, an optimized PID controller for a fuel cell is introduced. It should be noted that we did not compute the PID controller’s coefficients based on trial-and-error method; instead, imperialist competitive algorithms have been considered. At first, the problem will be formulated as an optimization problem and solved by the mentioned algorithm, and optimized results will be obtained for PID coefficients. Then one of the important kinds of fuel cells, called proton exchange membrane fuel cell, is introduced. In order to control the voltage of this fuel cell during the changes in the charges, an optimal controller is introduced, based on the imperialist competitive algorithm. In order to apply this algorithm, the problem is written as an optimization problem which includes objectives and constraints. To achieve the most desirable controller, this algorithm is used for problem solving. Simulations confirm the better performance of proposed PID controller.
Źródło:
Advances in Science and Technology. Research Journal; 2016, 10, 30; 176-181
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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