Numerical determination of the heat transfer of free standing solar modules

I. E. Haber, I. Farkas

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Free standing photovoltaic module(s) were investigated, how the flow field and the heat transfer coefficients arise in this case. Free standing modules are used in many cases where big arrays are planted, and its very similar to modules mounted on large flat roofs. The efficiency of photovoltaic (PV) devices is decreasing as the modules temperature increasing thanks to that part of the solar irradiance which is not converted into electricity. The placement of the PV modules has a big affect on the natural cooling, due to wind flow-around and the buoyancy driven flows. The effect of the environmental parameters (temperature, irradiation, wind) on the performance on one type of PV module with dimensions 1245 × 637 × 10 mm in terms of the cell temperature and heat transfer coefficient has been determined numerically. In view of the flow field and the heat transfer, which was calculated numerically, the heat transfer coefficients can be determined. Five inflow rates were set up to let the trend of the heat transfer coefficient know, while this function can be used for the Matlab/Simulink model. It has been found that under a constant solar heat gain, the air velocity around the modules is increasing, proportionately to the wind velocities, and as result the heat transfer coefficient increases linearly, and can be described by a function.

Original languageEnglish
Title of host publicationProceedings of the 7th International Conference on Engineering Computational Technology
Publication statusPublished - Dec 1 2010
Event7th International Conference on Engineering Computational Technology, ECT 2010 - Valencia, Spain
Duration: Sep 14 2010Sep 17 2010

Publication series

NameProceedings of the 7th International Conference on Engineering Computational Technology

Other

Other7th International Conference on Engineering Computational Technology, ECT 2010
CountrySpain
CityValencia
Period9/14/109/17/10

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Keywords

  • Computational fluid dynamics
  • Heat transfer
  • Heatflow network
  • Photovoltaic
  • Solar heat gain

ASJC Scopus subject areas

  • Computer Science(all)

Cite this

Haber, I. E., & Farkas, I. (2010). Numerical determination of the heat transfer of free standing solar modules. In Proceedings of the 7th International Conference on Engineering Computational Technology (Proceedings of the 7th International Conference on Engineering Computational Technology).