Technical Brief

The Effect of Local Meteorological Conditions on the Optimal Tilt Angle of a Solar Energy Collector—A Case Study in Poland

[+] Author and Article Information
Ryszard Myhan

Faculty of Technical Sciences,
University of Warmia and Mazury in Olsztyn,
ul. Oczapowskiego 11,
Olsztyn 10-719, Poland
e-mail: ryszard.myhan@uwm.edu.pl

Jacek Bieranowski

Faculty of Technical Sciences,
University of Warmia and Mazury in Olsztyn,
ul. Oczapowskiego 11,
Olsztyn 10-719, Poland
e-mail: jacbier@uwm.edu.pl

Zbigniew Szwejkowski

Faculty of Environmental Management and Agriculture,
University of Warmia and Mazury in Olsztyn,
ul. Oczapowskiego 8,
Olsztyn 10-719, Poland
e-mail: szwzbig@uwm.edu.pl

Eliza Sitnik

Faculty of Technical Sciences,
University of Warmia and Mazury in Olsztyn,
ul. Oczapowskiego 11,
Olsztyn 10-719, Poland
e-mail: eliza.sitnik@uwm.edu.pl

1Corresponding author.

Contributed by the Solar Energy Division of ASME for publication in the JOURNAL OF SOLAR ENERGY ENGINEERING: INCLUDING WIND ENERGY AND BUILDING ENERGY CONSERVATION. Manuscript received November 9, 2016; final manuscript received April 14, 2017; published online May 16, 2017. Assoc. Editor: Jorge Gonzalez.

J. Sol. Energy Eng 139(4), 044501 (May 16, 2017) (4 pages) Paper No: SOL-16-1469; doi: 10.1115/1.4036637 History: Received November 09, 2016; Revised April 14, 2017

This study compares the potential annual energy absorption of a flat-plate solar collector at different tilt angles in Poland. Optimal tilt angles were tested in three variants: over the course of the year, in fall/winter and in spring/summer. The results were compared with automatically tracked collectors where the active surface is perpendicular to the angle at which solar radiation reaches the collector. The results were simulated based on the meteorological data. A comparison of the energy outputs of solar collectors in optimization variants 1, 2, and 3 indicates that variant 1 produces the highest energy output.

Copyright © 2017 by ASME
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Grahic Jump Location
Fig. 1

Potential radiation (given absolute atmospheric clarity) and measured radiation on selected days of the year

Grahic Jump Location
Fig. 2

Angle at which sun rays reach the collector surface on selected days of the year

Grahic Jump Location
Fig. 3

Wind speed, ambient temperature, radiation intensity, and daily energy output per m2 of absorber area (intensity of solar radiation; radiation incident on the surface of the solar collector, radiation incident on the surface of the absorber)



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