FUZZY LOGIC MODELING OF SOLAR RADIATION USED IN PHOTOVOLTAICS
Journal Title: Journal of Science And Arts - Year 2009, Vol 11, Issue 2
Abstract
Knowing the amount of solar radiation on a surface is of key importance to engineers and scientists involved in the design of solar powered systems. Numerous design methods for thermal and photovoltaic systems require as an input monthly average daily radiation on a horizontal surface, in order to predict the energy production of the system on a monthly basis. In applicative studies it is a logical and coherent idea that the solar radiation is directly proportional to the sunshine duration. Usualy solar energy models have linear mathematical forms similar to scientific laws which express linear relationships between two relevant variables. However, planetary boundary layer turbulence, atmospheric turbidity and transmissivity, cloud thickness, and temporal and spatial variations cause embedding of nonlinear elements in the solar radiation phenomena. Therefore, the use of simple linear models cannot be justified except statistically without even considering about obtaining the model parameter estimations.
Authors and Affiliations
Dorin Let, Andreea Stancu
Keywords
Related Articles
- EP ID EP107771
- DOI -
- Views 190
- Downloads 0
LINEAR PERTURBATIONS FOR THE DIRICHLET PROBLEM
In this paper we study a problem of type −u + u + Au = f in D u = 0 on @D which generalizes a result from [3], p.175. The results are given in theorem 1.1 and for case with bounded domain of class C...
EXPLICIT APPLICATION OF SWANEPOEL’S METHOD<br /> FOR THE ANALYSIS OF Sb<sub>2</sub>O<sub>3</sub> FILMS
Swanepoel’s method can be applied successfully for the determination of essential optical parameters for films exhibiting interference pattern-type of optical transmission spectra, such those made of antimony trioxide de...
PATH COALGEBRA kQ AND RIGHT COMODULES OVER kQ
ABOUT A TECHNIQUE OF SOLVING SOME DIFFERENTIAL STOCHASTIC ITÔ EQUATIONS
The differential stochastic systems modeled the evolutive phenomena of environment influenced by stochastic forces. In this article it solved, using the Itô’s formula, some differential stochastic systems for a vibrating...
BINARY OPERATIONS ASSOCIABLE WITH A GROUP OPERATION
Conditions under which two binary operations on a set M are associable (x○(y*z)=(x○y)*z, z,y,zєM) were given by J. Dhombres in the case when the operations are associative. We characterize the associability of two group...