Determination of the optimal tilt angle and orientation for solar photovoltaic arrays

Mehleri, ED; Zervas, PL; Sarimveis, H; Palyvos, JA; Markatos, NC

dc.contributor.author	Mehleri, ED	en
dc.contributor.author	Zervas, PL	en
dc.contributor.author	Sarimveis, H	en
dc.contributor.author	Palyvos, JA	en
dc.contributor.author	Markatos, NC	en
dc.date.accessioned	2014-03-01T01:33:08Z
dc.date.available	2014-03-01T01:33:08Z
dc.date.issued	2010	en
dc.identifier.issn	0960-1481	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/20341
dc.subject	Global solar irradiance	en
dc.subject	Optimization	en
dc.subject	Orientation	en
dc.subject	Photovoltaic systems	en
dc.subject	Radial basis function (RBF)	en
dc.subject	Tilt angle	en
dc.subject.classification	Energy & Fuels	en
dc.subject.other	Global solar irradiance	en
dc.subject.other	Photovoltaic systems	en
dc.subject.other	Radial basis functions	en
dc.subject.other	Solar irradiances	en
dc.subject.other	Tilt angle	en
dc.subject.other	Attitude control	en
dc.subject.other	Optimization	en
dc.subject.other	Photovoltaic effects	en
dc.subject.other	Radial basis function networks	en
dc.subject.other	Solar concentrators	en
dc.subject.other	Solar radiation	en
dc.subject.other	Solar power generation	en
dc.subject.other	anisotropic medium	en
dc.subject.other	control system	en
dc.subject.other	database	en
dc.subject.other	irradiance	en
dc.subject.other	optimization	en
dc.subject.other	photovoltaic system	en
dc.subject.other	solar radiation	en
dc.subject.other	tilt	en
dc.title	Determination of the optimal tilt angle and orientation for solar photovoltaic arrays	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.renene.2010.03.006	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.renene.2010.03.006	en
heal.language	English	en
heal.publicationDate	2010	en
heal.abstract	This paper deals with the determination of optimum tilt angle and orientation for solar photovoltaic arrays in order to maximize incident solar irradiance exposed on the array, for a specific period of time. The method is extended, by introducing a second objective, i.e. minimization of variance of the produced power, in terms of hourly power generation throughout the given period of time. The proposed method uses both well-established models and data collected from the particular area where the photovoltaic panels will be installed and is built upon four steps. In the first step, the recorded data are used in order to select the most accurate, among several isotropic and anisotropic models that can be found in the literature, for predicting diffuse solar irradiance on inclined surfaces. In the second step, the recorded data and the selected model are used to construct a database that contains the averages and the variances of the hourly global solar irradiance on tilted surfaces over specific periods of time, for various tilt angles and orientations. In the third step, the database of the previous step is utilized to produce meta-models that correlate tilt angle and orientation with mean global irradiance and its variance on tilted surfaces. Finally, an optimization problem is formulated, aiming to determining the optimum values of tilt angle and orientation, taking into account the constraints and limitations of the system. (C) 2010 Elsevier Ltd. All rights reserved.	en
heal.publisher	PERGAMON-ELSEVIER SCIENCE LTD	en
heal.journalName	Renewable Energy	en
dc.identifier.doi	10.1016/j.renene.2010.03.006	en
dc.identifier.isi	ISI:000279501300009	en
dc.identifier.volume	35	en
dc.identifier.issue	11	en
dc.identifier.spage	2468	en
dc.identifier.epage	2475	en