The Theoretical Investigation of Performance of the Hydrogen Attaination System with Electricity from a Solar Pond

Öz

In this study, the electricity and hydrogen production performance of the rectangular prism salt sloped solar pond (RPSSSP) was examined. In order to generate thermal energy from solar energy, an integrated system consisting of a solar pond in the form of a rectangular prism of 1.5 × 8 × 8m3, Organic Rankine Cycle (ORC) and electrolysis system was designed. The analysis of the designed system was carried out using an engineering equations solver (EES) program. Thermal energy stored in the pond was transferred to the Organic Rankine Cycle. Thus, electricity was generated in the ORC by using thermal energy, successfully. However, due to the fact that both heat and electricity cannot be efficiently stored, the energy produced is used in the production of hydrogen in an electrolysis system. Hydrogen gas was produced by electrolysis of water. The analysis was done separately for June, July, August and September. As a result, the energy consumption of the ORC was 16.20%, 16.73%, 17.47% and 15.32% for June July, August and September respectively. Electricity generated for the same months was 143.2 MJ, 156.2 MJ, 168.5 MJ and 130.5 MJ, respectively. By using this electricity in an electrolysis system, 1.216 kg, 1.326 kg, 1.431 kg and 1.108 kg of hydrogen can be produced, respectively. 

 

Anahtar Kelimeler

• Solar energy,Solar pond,Organik rankine cycle,Electric and hydrogen production

Bir Güneş Havuzundan Üretilecek Elektrik ile Hidrojen Elde Etme Sisteminin Performansının Teorik Olarak İncelenmesi

Öz

Bu çalışmada, dikdörtgen prizma tuz eğimli güneş havuzu (DPTEGH)’nun elektrik ve hidrojen üretim performansı incelendi. Güneş enerjisinden ısı enerjisi üretmek için 1,5×8×8 m3 boyutunda dikdörtgen prizma şeklinde bir güneş havuzu, Organik Rankine Çevrimi (ORÇ) ve elektroliz sisteminden oluşan bir birleşik sistem tasarlandı. Tasarlanan bu sistemin analizi mühendislik eşitlikleri çözücü (EES) benzetim programı kullanılarak gerçekleştirildi. Havuzda depolanan ısı enerjisi Organik Rankine Çevrimi (ORÇ)’ye aktarıldı. Böylece, başarılı bir şekilde depolanan ısı enerjisi kullanılarak ORÇ’de elektrik üretildi. Ancak, hem ısının hem de elektriğin verimli bir şekilde depolanamaması yüzünden, üretilen enerji bir elektroliz sisteminde hidrojen üretiminde kullanıldı. Böylece suyun elektrolizi ile hidrojen gazı üretildi. Analizler, Haziran, Temmuz, Ağustos ve Eylül ayları için ayrı ayrı yapıldı. Sonuç olarak, ORÇ’nin enerji verimi Haziran Temmuz, Ağustos ve Eylül ayları için sırasıyla %16,20, %16,73, 17,47 ve %15,32 olarak bulundu. Aynı aylar için üretilen elektrik ise sırasıyla, 143,2 MJ, 156,2 MJ, 168,5 MJ ve 130,5 MJ olarak hesaplandı. Bu elektriğin, bir elektroliz sisteminde kullanılmasıyla da sırasıyla 1,216 kg, 1,326 kg, 1,431 kg ve 1,108 kg hidrojen üretilebileceği görüldü. 

Anahtar Kelimeler

• Güneş enerjisi,Güneş havuzu,Organik rankine çevrimi,Elektrik ve hidrojen üretimi

Kaynakça

1. 1. Öztürk, M., Özek, N., Berkama, B., 2012. Comparison of Some Existing Models for Estimating Monthly Average Daily Global Solar Radiation for Isparta, Pamukkale University Journal of Engineering Sciences, 18, 13-27.
2. 2. Karakilcik, M., Dincer, I., Rosen, M., 2006. Performance Investigation of a Solar Pond, Applied Thermal Engineering, 26, 727-735.
3. 3. Abdullah, A.A., Lindsay, K.A., AbdelGawad, A.F., 2016. Construction of Sustainable Heat Extraction System and a New Scheme of Temperature Measurement in an Experimental Solar Pond for Performance Enhancement, Solar Energy, 130, 10-24.
4. 4. Date, A., Yaakob, Y., Date, A., Krishnapillai, S., Akbarzadeh, A., 2013. Heat Extraction from Non-Convective and Lower Convective Zones of the Solar Pond: A Transient Study, Solar Energy, 97, 517-528.
5. 5. Ding, L.C., Akbarzadeh, A., Tan, L., 2018. A Review of Power Generation with Thermoelectric System and its Alternative with Solar Ponds, Renewable and Sustainable Energy Reviews, 81, 799-812.
6. 6. Bertrand F., Tchanche, B.F., Lambrinos, G., Frangoudakis, A., Papadakis, G., 2011. LowGrade Heat Conversion Into Power Using Organic Rankine Cycles–A Review of Various Applications, Renewable and Sustainable Energy Reviews, 15, 3963-3979.
7. 7. Erden, M., Karakilcik, M., Dincer, I., 2017. Performance Investigation of Hydrogen Production by the Flat-Plate Collectors Assisted by a Solar Pond, International Journal of Hydrogen Energy, 42, 2522-2529.
8. 8. Karapekmez, A., Dincer, I., 2018. Modelling of Hydrogen Production from Hydrogen Sulfide İn Geothermal Power Plants, International Journal of Hydrogen Energy 43, 10569-10579.

9. 9. Dincer, I., Acar, C., 2018. Smart Energy Solutions with Hydrogen Options, International Journal of Hydrogen Energy 43, 8579-8599.
10. 10. Yüksel, Y.E., Öztürk, M., 2016. Thermodynamic Analysis of Integrated WindSolar-Hydrogen System for Residential Applications, El-Cezerî Journal of Science and Engineering, 3, 401-416.
11. 11. Yüksel, Y.E., Öztürk, M., 2015. Thermodynamic Analysis of an Integrated Solar-based Chemical Reactor System for Hydrogen Production, El-Cezerî Journal of Science and Engineering, 2, 19-27.
12. 12. Ozturk, M., Dincer, I., 2013. Thermodynamic Assessment of an Integrated Solar Power Tower and Coal Gasification System for MultiGeneration Purposes, Energy Conversion and Management, 76, 1061-1072.
13. 13. Bozkurt, I., Karakilcik, M., 2012. The Daily Performance of a Solar Pond Integrated with Solar Collectors. Solar Energy, 86, 1611-1620.
14. 14. Bozkurt, I., Karakilcik, M., 2015. The Effect of Sunny Area Ratios on the Thermal Performance of Solar Ponds. Energy Conversion and Management, 91, 323-332.
15. 15. Karakilcik, M., Dincer, I., Bozkurt, I., Atiz, A., 2013. Performance Assessment of a Solar Pond With and Without Shading Effect, Energy Conversion and Management, 65, 98-107.
16. 16. Karakilcik, M., 2016. The Effect on Performance of the Salt Gradient Zone of the Solar Pond Çukurova University Journal of the Faculty of Engineering and Architecture, 31, 391-400.
17. 17. Cengel, Y.A., 2006. Heat and Mass Transfer, Third Edition, Mc Graw Hill.
18. 18. Quoilin, S., Den Broek, M.V., Declaye, S., Dewallef, P., Lemort, V., 2013. Technoeconomic survey of Organic Rankine Cycle (ORC) systems, Renewable and Sustainable Energy Reviews, 22, 168-186.
19. 19. Wang, J., Yan, Z., Wang, M., Maa, S., Dai Y., 2013. Thermodynamic Analysis and Optimization of an (Organic Rankine Cycle) ORC Using Low Grade Heat Source, Energy 49, 356-365.
20. 20. Tchanche, B.F., Papadakis, G., Lambrinos, G., Frangoudakis, A., 2009. Fluid Selection for A Low-Temperature Solar Organic Rankine Cycle, Applied Thermal Engineering 29, 2468-2476.
21. 21. Ozturk, M., Dincer, I., 2013. Thermodynamic Analysis of a Solar-Based Multi-Generation System with Hydrogen Production, Applied Thermal Engineering, 51, 1235-1244.
22. 22. Yılmaz, C., Kanoğlu, M., Bolattürk, A., 2011. Jeotermal Enerji ile Hidrojen Üretilmesi ve Sıvılaştırılması, X.Ulusal Tesisat Mühendisliği Kongresi, İzmir.