Öz
Bu çalışmada yutucu yüzeyi farklı engellerden oluşmuş havalı bir güneş kollektörünün tasarımı yapılmıştır. Havalı güneş kollektörün yutucu yüzeyi, gözenekli bulaşık telleri kullanılarak oluşturulmuştur. Deneysel çalışma için üç farklı yutucu yüzey kullanılmıştır. Birinci tip yutucu yüzey olarak karmaşık yüzey (Tip I), ikinci tip yutucu yüzey olarak az karmaşık yüzey (Tip II), üçüncü tip yutucu yüzey olarak düz yüzey (Tip III) kullanılmıştır. Üç farklı yutucu yüzey olarak imal edilen bu yüzeylerin üzerine bulaşık telleri karmaşık ve az karmaşık olarak yerleştirilmiştir. Bir tane yutucu yüzey de boş bırakılmıştır. Bulaşık telleri yanyana ve uç uca eklenerek selenoid şekilde yapıştırıldıktan sonra siyah mat boya ile boyanarak güneş ışınımından daha fazla yararlanılmıştır. Deneylerde, hava geçiş kanallarından geçen havanın kütlesel debisi 0,05 kg/s ve 0,025 kg/ s olarak alınmış ve en uygun debi değeri 0,05 kg/s olarak bulunmuştur. Kollektör kasasının dış yan kenarları ve altı alüminyum malzemeden yapılmış olup, dış havaya bakan bu yüzeyler yalıtım malzemesi ile sıkı bir şekilde izole edilmiştir. Bu kollektör yatayla 37 0C açı yapacak şekilde ve üzerine gölge düşmeyecek biçimde bir sehpa üzerine güneye bakacak şekilde yerleştirilmiştir. Kollektör verim hesaplamalarının yapılabilmesi için kollektör giriş sıcaklığı, çıkış sıcaklığı, yutucu yüzey sıcaklığı, çevre sıcaklığı ve güneş ışınım değerleri ölçülmüştür. Kollektör yüzeyinin karmaşıklık oranı arttıkça kollektör verimin arttığı tespit edilmiştir. Farklı yutucu yüzeyler için verim değerleri % 23 ile %74 arasında bulunmuştur. Ayrıca debi değerinin artması ile kollektör verimin arttığı görülmüştür.
Anahtar Kelimeler
Kaynakça
- [1] Kaygusuz K. and Kaygusuz A., 2002. Renewable energy and sustainable development in Turkey, Renewable Energy, 25, 431-453.
- [2] Manikandan G.K., Iniyan S. and Goic R., 2019. Enhancing the optical and thermal efficiency of a parabolic trough collector – A review, Applied Energy, 235, 1524-1540.
- [3] Kongkaitpaiboon V., Nanan K. and Eiamsa-ard S., 2010. Experimental investigation of heat transfer and turbulent flow friction in a tube fitted with perforated conical-rings, International Communications in Heat and Mass Transfer, 37, 560-567. [4] Reddy K., Kumar K.R. and Ajay C., 2015. Experimental investigation of porous disc enhanced receiver for solar parabolic trough collector, Renewable Energy, 77, 308-319.
- [5] Hegazy A.A., 2000. Performance of flat plate solar air heaters with optimum channel geometry for constant/variable flow operation, Energy Conversion and Management,41(4), 401–17.
- [6] Alvarez G., Arce J., Lira L. and Heras M.R., 2004. Thermal performance of an air solar collector with an absorber plate made of recyclable aluminum cans, Solar Energy, 77(1), 107-13.
- [7] Esen H., Ozgen F., Esen M. and Sengur A., 2009. Artificial neural network and wavelet neural network approaches for modelling of a solar air heater, Expert Systems with Applications, 36,11240–11248.
- [8] Özgen F., 2007. Yutucu plakası silindirik teneke kutulardan yapılmış bir havalı güneş kollektörünün ısıl performansının deneysel olarak araştırılması. Yüksek Lisans Tezi, Fırat Üniversitesi.
- [9] Layek A., Saini J.S. and Solanki S.C., 2007. Second law optimization of a solar air heater having chamfered rib-groove roughness on absorber plate, Renewable Energy, 32, 1967–80.
- [10] Karsli S., 2007. Performance analysis of new-design solar air collectors for drying applications, Renewable Energy, 32, 1645–60.
- [11] Moosavian S.F., Borzuei D. and Ahmadi A., 2021. Energy, exergy, environmental and economic analysis of the parabolic solar collector with life cycle assessment for different climate conditions, Renewable Energy, 165, 301-320.
- [12] Esen H., 2008. Experimental energy and exergy analysis of a double-flow solar air heater having different obstacles on absorber plates, Building and Environment, 43, 1046–1054.
- [13] Kavak Akpinar E. and Koçyiğit F., 2010. Energy and exergy analysis of a new flat-plate solar air heater having different obstacles on absorber plates, Applied Energy, 87, 3438–3450.
- [14] Ozgen F., Esen M. and Esen H., 2009. Experimental investigation of thermal performance of a double-flow solar air heater having aluminium cans, Renewable Energy, 34, 2391–2398.
- [15] Arabhosseini A. and Samimi-Akhijahani H., 2019. Motahayyer M. Increasing the energy and exergy efficiencies of a collector using porous and recycling system, Renewable Energy, 132, 308-325.
- [16] Ucar A. and Inalli M., 2006. Thermal and exergy analysis of solar air collectors with passive augmentation techniques, International Communications in Heat and Mass Transfer, 33(10), 1281–90.
- [17] Dong Z., Chang L., Jianjun Z., Jinlong J., Zhoujian A. and Linjun W., 2021. Thermal economic analysis of a double-channel solar air collector coupled with draught fan: Based on energy grade, Renewable Energy, 170, 936-947.
- [18] Yeh H.M., Ho C.D. and Hou J.Z., 1999. The improvement of collector efficiency in solar air heaters by simultaneously air flow over and under the absorbing plate, Energy, 24, 857-871.
Öz
In this study, an air solar collector has been designed, whose absorber surface consists of different obstacles. The absorber surface of the air solar collector is created using porous wire for dishes. Three different absorptive surfaces were used for the experimental study. The first type of absorbing surface is a complex surface (Type I), the second type is a less complex surface (Type II), and the third type is a flat surface (Type III). Dishwashers are placed on these surfaces, which are manufactured as three different absorbing surfaces, in a complex and less complex. One absorber surface is also left blank. After the dishwires were attached side by side and end to end and adhered as a solenoid, they were painted with black matte paint, and more benefit from sunlight. In the experiments, the mass flow rate of the air passing through the air passage channels was taken as 0.05 kg / s and 0.025 kg / s and the optimum flow rate value was found to be 0.05 kg / s. The outer side edges and bottom of the collector case are made of aluminum material, and these surfaces facing the outside air are tightly insulated with insulation material. This collector is placed at an angle of 37 0C horizontally and facing south on a coffee table without shadows falling on it. In order to make collector efficiency calculations, collector inlet temperature, outlet temperature, absorber surface temperature, ambient temperature and solar radiation values were measured. It has been determined that as the complexity ratio of the collector surface increases, the collector efficiency increases. Efficiency values for different absorber surfaces were found between 23% and 74%. In addition, it has been observed that the collector efficiency increases with the increase in the flow rate.
Anahtar Kelimeler
Solar Collector Absorber surface Barrier, Energy Thermal efficiency
Kaynakça
- [1] Kaygusuz K. and Kaygusuz A., 2002. Renewable energy and sustainable development in Turkey, Renewable Energy, 25, 431-453.
- [2] Manikandan G.K., Iniyan S. and Goic R., 2019. Enhancing the optical and thermal efficiency of a parabolic trough collector – A review, Applied Energy, 235, 1524-1540.
- [3] Kongkaitpaiboon V., Nanan K. and Eiamsa-ard S., 2010. Experimental investigation of heat transfer and turbulent flow friction in a tube fitted with perforated conical-rings, International Communications in Heat and Mass Transfer, 37, 560-567. [4] Reddy K., Kumar K.R. and Ajay C., 2015. Experimental investigation of porous disc enhanced receiver for solar parabolic trough collector, Renewable Energy, 77, 308-319.
- [5] Hegazy A.A., 2000. Performance of flat plate solar air heaters with optimum channel geometry for constant/variable flow operation, Energy Conversion and Management,41(4), 401–17.
- [6] Alvarez G., Arce J., Lira L. and Heras M.R., 2004. Thermal performance of an air solar collector with an absorber plate made of recyclable aluminum cans, Solar Energy, 77(1), 107-13.
- [7] Esen H., Ozgen F., Esen M. and Sengur A., 2009. Artificial neural network and wavelet neural network approaches for modelling of a solar air heater, Expert Systems with Applications, 36,11240–11248.
- [8] Özgen F., 2007. Yutucu plakası silindirik teneke kutulardan yapılmış bir havalı güneş kollektörünün ısıl performansının deneysel olarak araştırılması. Yüksek Lisans Tezi, Fırat Üniversitesi.
- [9] Layek A., Saini J.S. and Solanki S.C., 2007. Second law optimization of a solar air heater having chamfered rib-groove roughness on absorber plate, Renewable Energy, 32, 1967–80.
- [10] Karsli S., 2007. Performance analysis of new-design solar air collectors for drying applications, Renewable Energy, 32, 1645–60.
- [11] Moosavian S.F., Borzuei D. and Ahmadi A., 2021. Energy, exergy, environmental and economic analysis of the parabolic solar collector with life cycle assessment for different climate conditions, Renewable Energy, 165, 301-320.
- [12] Esen H., 2008. Experimental energy and exergy analysis of a double-flow solar air heater having different obstacles on absorber plates, Building and Environment, 43, 1046–1054.
- [13] Kavak Akpinar E. and Koçyiğit F., 2010. Energy and exergy analysis of a new flat-plate solar air heater having different obstacles on absorber plates, Applied Energy, 87, 3438–3450.
- [14] Ozgen F., Esen M. and Esen H., 2009. Experimental investigation of thermal performance of a double-flow solar air heater having aluminium cans, Renewable Energy, 34, 2391–2398.
- [15] Arabhosseini A. and Samimi-Akhijahani H., 2019. Motahayyer M. Increasing the energy and exergy efficiencies of a collector using porous and recycling system, Renewable Energy, 132, 308-325.
- [16] Ucar A. and Inalli M., 2006. Thermal and exergy analysis of solar air collectors with passive augmentation techniques, International Communications in Heat and Mass Transfer, 33(10), 1281–90.
- [17] Dong Z., Chang L., Jianjun Z., Jinlong J., Zhoujian A. and Linjun W., 2021. Thermal economic analysis of a double-channel solar air collector coupled with draught fan: Based on energy grade, Renewable Energy, 170, 936-947.
- [18] Yeh H.M., Ho C.D. and Hou J.Z., 1999. The improvement of collector efficiency in solar air heaters by simultaneously air flow over and under the absorbing plate, Energy, 24, 857-871.
Ayrıntılar
| Birincil Dil | Türkçe |
|---|---|
| Konular | Mühendislik |
| Bölüm | Makaleler |
| Yazarlar | |
| Yayımlanma Tarihi | 28 Haziran 2021 |
| Gönderilme Tarihi | 19 Mart 2021 |
| Yayımlandığı Sayı | Yıl 2021 Cilt: 5 Sayı: 1 |
Kaynak Göster
