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Analiza wpływu uwarunkowań zewnętrznych w celu wykorzystania energii Słońca w fotowoltaice

Frydrychowicz-Jastrzębska G., Bugała A.

Wiadomości Elektrotechniczne

2013

R. 81, nr 5

41-43

Przedstawiono wyniki pomiarów gęstości mocy promieniowania słonecznego docierającego do powierzchni modułu fotowoltaicznego w Polsce i Hiszpanii w ciągu roku i doby.

The paper presents power density of solar radiation measured on the surface of photovoltaic module in Poland and Spain, recorded for the year and for twenty four hours.

Selecting the wind turbine for a particular geographic location using statistical methods

Tomczewski A.

Poznan University of Technology Academic Journals. Electrical Engineering

2011

No. 67-68

81-93

The paper describes the problem of selecting the wind turbine for a particular geographic location focusing on the obtained energetic effectiveness. Establishing its value requires determining the amount of electric energy generated by the turbine. There are three methods to determine the amount of energy that is generated by the turbine, two of them using a statistical mechanism connected with Weibull probability density distribution. Differences have been identified both in the input data for those methods as well as in the ways in which the distribution parameters are established: the shape parameter, k, and the scale parameter c. Test calculations were performed for four types of wind turbines. It was proven that using different methods of determining the Weibull distribution parameters affects the precision of the wind conditions mapping and the energy effectiveness of the turbine that is connected with it in a particular geographic location.