PREDICTION OF THERMAL PERFORMANCE OF DESIGNED DIFFERENT OBSTACLES ON ABSORBER PLATES IN SOLAR AIR COLLECTORS BY SUPPORT VECTOR MACHINE
Abstract
In this study, energy performance of a new flat plate solar
air collector (SAHs) with different obstacles at fin shape and rectangle Type I
and Type II was
investigated. The measured parameters were the inlet and outlet temperatures,
the absorbing plate temperatures, the ambient temperature, and the solar
radiation. Further, the measurements were performed at
different values of mass flow rate of air (0.0074, 0.0052, 0.0016 kg/s). The thermal efficiency was calculated based on the measurements The
results obtained were trained and tested with the support vector machine (SVM) which
is one of the regression analyse methods. 10-fold cross-validation method
was used to evaluate the regression performance. The best regression
analysis result was obtained using cubic SVM method in which R2 was
0.88 in the Type II air collector. Comparison
between predicted and experimental results indicates that the proposed SVM
model can be used for estimating the efficiency of SAHs with reasonable
accuracy.
Keywords
References
- Koçyiğit H., Yutucu plaka üzerine farklı türde kanatçıkların yerleştirildiği bir havalı kollektörün enerji ve ekserji analizi, Yüksek Lisans, Fırat Üniversitesi, 2008.
- Güneş Enerjisi Potansiyel Atlası, (2007). www.eiei.gov.tr
- Karsli, S., Performance analysis of new-design solar air collectors for drying applications, Renewable Energy, 32, (2007), pp.1645-1660.
- Ucar, A., Inallı, M., Thermal and exergy analysis of solar air collectors with passive augmentation techniques, International Communications in Heat and Mass Transfer, 33 (2006), pp. 1281–1290.
- Moummi, N., Youcef-Ali, S., Moummi, A., Desmons, J.Y., Energy analysis of a solar air collector with rows of fins, Renewable Energy, 29, (2004), 13, pp. 2053-2064.
- Hegazy Adel, A., , Optimization of flow-channel depth for conventional flat-plate solar air heaters, Renewable Energy, 7, (1996) 1, pp.15-21.
- Dincer, I., On energetic, exergetic and environmental aspects of drying systems, International Journal of Energy Research, 26 (2002), 8, pp.717-727.
- Dincer, I. and Sahin, A.Z., A new model for thermodynamic analysis of a drying process, International Journal of Heat and Mass Transfer, 47 (2004), 4, pp.645-652.
Details
Primary Language
English
Subjects
Mechanical Engineering
Journal Section
Research Article
Authors
Fatih Koçyiğit
This is me
Vedat Veli Çay
*
This is me
Ömer Osman Dursun
This is me
Ebru Kavak Akpınar
This is me
Publication Date
December 30, 2017
Submission Date
August 8, 2017
Acceptance Date
September 1, 2017
Published in Issue
Year 2017 Volume: 7 Number: 2
