STAND-ALONE PV PUMPING SYSTEM ADJUSTMENT BY VALVE-THROTTLING CONTROL

  • AMMAR HACHEMI Laboratory of Hydraulics and Environment Facilities (LAHE) University of Biskra, B.P. 145, R.P, 07000 – Algeria
  • MOHAMED TEWFIK BOUZIANE Unité de Recherche Appliquée en Energies Renouvelables, URAER, Centre de Développement des Energies Renouvelables, CDER, 47133, Ghardaïa, Algeria

Résumé

Stand-alone photovoltaic water pumping system is one of the best choices, especially in remote areas. In the most cases, the photovoltaic energy is used directly from photovoltaic panels without conversion or battery storage. The particularity of pumps installed along the sun, that their characteristics (flow rate, head, power, rotation speed) depends on solar irradiations which varies over the days and seasons of the year. Pumps installed in this system have to be controlled to keep them working in the best efficiency and with the required flow rate.
Valve-throttling control is one of control methods commonly used to adjust and to control the flow rate in pumping systems. This method has a direct impact on pump performances (power consumption, amount of water delivered, efficiency...) and its operating point.
In this paper, we show a laboratory test of the centrifugal solar pumps, where their characteristics were determined by the valve-throttling control. Comparing the results obtained with those given by the manufacturer, we note a considerable loss in the head and energy which can be treated in this study.

Références

[1] Girdhar, Paresh, and Octo Moniz."Practical centrifugal pumps." Elsevier, 2011.
[2] H. AMMAR, MT. Bouziane, Y Bakelli. " L'influence de la variation de débit sur les performances d'une pompe solaire. "Revue des Energies Renouvelables SIENR’12 Ghardaïa Algérie, (2012) 23 – 28.
[3] H. AMMAR et al "Point de fonctionnement d’une pompe solaire installée au fil du soleil au labo." 2ème conférence Internationale des énergies renouvelables CIER-2014 International Journal of Scientific Research & Engineering Technology (IJSET) Vol.3-pp.10-14, - IPCO 2015.
[4] H. AMMAR, MT. Bouziane. "Régulation de débit et performances d’une pompe installée au fil du soleil", VIIth International Congress on Renewable Energy and the Environment, 19-21 March 2013, Sousse, Tunisi.
[5] Nesbitt, Brian. "Handbook of pumps and pumping: Pumping manual international." Elsevier, 2006.
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Publiée
2016-11-29
Comment citer
HACHEMI, AMMAR; BOUZIANE, MOHAMED TEWFIK. STAND-ALONE PV PUMPING SYSTEM ADJUSTMENT BY VALVE-THROTTLING CONTROL. Courrier du Savoir, [S.l.], v. 21, nov. 2016. ISSN 1112-3338. Disponible à l'adresse : >http://revues.univ-biskra.dz/index.php/cds/article/view/1841>. Date de consultation : 20 sep. 2020