Merkezi Bir Isıtma Sisteminde Enerji ve Ekserji Analizinin Eksergoekonomik Yönden Değerlendirilmesi

Yıl 2020, Cilt: 35 Sayı: 3, 745 - 752, 30.09.2020

İrfan Uçkan Erkan Ulusoy

https://doi.org/10.21605/cukurovaummfd.846732

Öz

Bu çalışmada Van Yüzüncü Yıl Üniversitesi kampüsünde toplam 20 ton/saat buhar üreten merkezi ısıtma sisteminin ekonomik ve Eksergoekonomik analizi yapılmıştır. Yapılan analiz sonucunda sistemin en önemli bölgesi olan kazanlardaki toplam enerji verimi ortalama olarak %90, ekserji verimi ise %31 olarak bulunmuştur. Tüm sistemin ekserjetik verimi ise %29 olarak bulunmuştur. Eksergoekonomik analiz sonucunda sistemin yıllık yakıt tüketim bedeli, yıllık ürün maliyeti bedeli, sisteme giren ve çıkan parametrelerin birim ekserji maliyet bedelleri hesaplanmıştır. Hesaplar sonucunda ürünün saatlik maliyeti: 291,78 $/h, yakıtın saatlik maliyeti: 252,30 $/h, olarak bulunmuştur.

Anahtar Kelimeler

Enerji, Ekserji, Eksergoekonomik

Exergoeconomic Evaluation of Energy and Exergy Analysis in a Central Heating System

Öz

In this study, the economical and exergoeconomik analysis of the central heating system which produces a total of 20 tons/hour of steam was conducted in in the Van Yüzüncü Yıl University campus. As a result of the analysis, the total energy efficiency of the boilers, which is the most important part of the system, was found to be 90% and the exergy efficiency as 31%. The exergetic efficiency of the whole system was found to be 29%. As a result of the exergoeconomic analysis, the annual fuel consumption cost of the system, the annual product cost price, the unit exergy cost of the parameters entering and leaving the system were calculated. As a result of the calculations, the hourly cost of the product was found to be: 291.78 $/h, the hourly cost of fuel: 252.30 $/h.

Anahtar Kelimeler

Energy, Exergy, Exergoeconomic

Kaynakça

• 1. Ben-Caleb, E., Otekunrin, A., Rasak, B., Adewara, S., Oladipo, O., Eshua R. 2019. Cost Reduction Strategies and the Growth of Selected Manufacturing Companies in Nigeria, Int. J. Mech. Eng. Technol. 10, 305–312.
• 2. Sailaja, A., Basak, P., Viswanadhan, K. 2015.Costs of Quality: Exploratory Analysis of Hidden Elements and Prioritization Using Analytic Hierarchy Process, Int. J. Supply Oper. Manag. 1, 489–506.
• 3. Ghannadzadeh, A., 2013. Exergetic Balances and Analysis in a Process Simulator: a Way to Enhance Process Energy Integration.
• 4. Tsatsaronis, G., Moran, M., 1997. Exergy- Aided Cost Minimization” Energy Conversation Management, 38(15-17), 1535-1542.
• 5. Chejne, F., Restrepo, J.A., 2003. New Rules for the Exergo-economic Optimization Methodology, Energy, 28, 993-1003.
• 6. Erlach, B., Tsatsaronis, G., Cziesla, F., 2001. A New Approach for Assigning Costs and Fuels to Cogeneration Products, In. J. Applied Thermodynamics, 4(3), 145-156.
• 7. Sevilgen, S.H., 2004. Exergoeconomic Analysis of Cogeneration System, Journal of Engineering and Natural Sciences, 4, 234-248.
• 8. Seyyedi, S.M., Ajam, H., Farahat, S., 2010. A New Approach for Optimization of Thermal Power Plant Based on the Exergoeconomic Analysis and 751 Tructural Optimization Method: Application to the CGAM Problem, Energy Conversion and Management, 51(11), 2202-2211.
• 9. Bejan, A., Tsatsaronis, G., Moran, M., 1996. Thermal Desing and Optimizasyon. A Wiley- Interscience Publcation, John Wiley&Sons, Inc., New York.
• 10. Knoche, K.F., Hesselmann, K., 1985. Exergoökonomische Bewertung Einer Luftzerlegungs Anlage, Chem.-Ing. Tech. 57, 602-609.
• 11. Zubair, S.M., Kadaba, P.V., Evans, R.B., 1987. Second-Law Based Thermoeconomic Optimization of two-phase Heat exchangers, Journal Heat Transfer, 109, 287-294.
• 12. Alfa lawal. https://www.alfalaval.com.tr/.
• 13. Ayvaz Vana https://www.ayvaz.com/.
• 14. G. Tsatsaronis. 2011. Exergoeconomics and Exergo Environmental Analysis, in: B.R. Bakshi, T.G., Gutowski, D.P., Sekulic (Eds.), Thermodynamics and the Destruction of Resources, Cambridge University Press, USA, 377–388.