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  • Author or Editor: István Háber x
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The efficiency of photovoltaic modules and their performance depends on the value of irradiation and on the temperature of the module. The temperature of the modules can be reduced with the suitable set-up of the modules giving an opportunity to the natural (buoyancy driven) flows for cooling the PV modules. Present work is aimed at defining the heat transfer coefficients of the modules, using the methods of the computational fluid dynamics. The heat transfer coefficients are defined at the typical placements of modules and in the case of average wind speeds typical in Hungary. Such values could be used to define the accurate working temperature.

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Authors: István Háber, István Kistelegdi, Tamás Bötkös and István Farkas

The most common way to measure solar radiation is the horizontal global irradiation measured by a pyranometer. To use the collected data in photovoltaic energy-yield prediction a mathematical model can be made from average data’s of more years. These global horizontal values to be used on tilted surfaces like a solar module, should be transformed, according to the incident angle of the solar beam. But there is a diffuse component also, which has to be determined, because it should be transformed in different way. This work is a case study, where data modeling and the transformation process will be shown using the data collected for Pecs/Hungary, and transformed for an existing site on Komlo, the RATI Ltd’s zero energy factory and also a LabView program has been made based on these data, to be used in the complete ‘heat transfer based photovoltaic-yield model’.

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Authors: Patrik Márk Máder, Olivér Rák and István Ervin Háber

The algorithms are the part of the life which could give a solution for simple and complex problems. Most of the ways are easy, but the basics are always made by predetermined steps. The peculiarity of the sciences can be explained with these process-based principles. The following rules are the same in the architecture also. Nowadays the algorithms are more improved the fact of the expectations of the 21st century. The creator can make a lot of rules which can support the workflow with the correct logical connections.

Since the computer aided design became available, the relationship between the architecture and information sciences getting stronger. To solve the most of the problems, it needs information technology programing techniques, logical methods and algorithms. The free geometric design, the compliance constraint with economic aspects, analysis and the optimization processes require new solutions.

The article will give an overview about the expectations of the future architects along the general knowledge and the practical examples. The study will show the development of the new professions according to the increased amount of data. Examine the competence of the contemporary architects and look for the issue of ‘the architect is a programmer.’

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