ISI GERİ KAZANIM EŞANJÖRLÜ ORGANİK RANKİNE ÇEVRİMİNİN PARAMETRİK ANALİZİ VE İSTATİKSEL DEĞERLENDİRMESİ

Yıl 2019, Cilt: 39 Sayı: 2, 121 - 135, 31.10.2019

Ali Bademlioğlu , Ahmet Canbolat Nurettin Yamankaradeniz Ömer Kaynaklı

Öz

Bu çalışmada farklı çalışma akışkanları için ısı geri kazanımlı eşanjör kullanan örnek bir organik Rankine çevriminin performans analizi gerçekleştirilmiştir. Akışkan olarak yaygın kullanılan R134a, R236fa, R245fa, R600a, R717 ve R718 akışkanları tercih edilmiştir. Seçilen bu akışkanlar için, 80°C ile 109°C sıcaklıkları arasında değişen atık ısı kaynak sıcaklığına ve eşanjör etkenliğine bağlı olarak sistem performansları karşılaştırılmıştır. Ayrıca sistemin performansını etkileyen parametrelerin etki oranları ve önem sırası Taguchi istatiksel metodu kullanılarak değerlendirilmiştir. Sonuç olarak, atık ısı kaynak sıcaklığının sistem performansı üzerindeki etkisinin incelenen diğer parametrelere göre daha fazla olduğu ve bu parametrenin etki oranının %59,80 olduğu belirlenmiştir. Bununla birlikte eşanjör etkenliğinin sistem performansı üzerindeki etkisinin diğer parametrelere göre çok daha az olduğu bulunmuş ve etki oranı %2.8 olarak hesaplanmıştır. Ayrıca sistemin en iyi ve en kötü çalışma şartları istatiksel analiz yapılarak belirlenmiş ve bu çalışma şartlarında organik Rankine çevriminin ısıl verimi sırasıyla %15,26 ve %8,61 olarak elde edilmiştir.

Anahtar Kelimeler

Organik Rankine çevrimi, Çalışma akışkanları, Performans analiz, Isı eşanjörü, ısıl verim, Taguchi metodu

A PARAMETRIC ANALYSIS OF THE PERFORMANCE OF ORGANIC RANKINE CYCLE WITH HEAT RECOVERY EXCHANGER AND ITS STATISTICAL EVALUATION

Öz

In this study, the performance of a case study of Organic Rankine Cycle with heat recovery exchanger using different fluids is analyzed. As the fluids worked in the cycle, the commonly used R134a, R236fa, R245fa, R600a, R717 and R718 are preferred. Cycle performances of the selected fluids are compared based on both the heat source’s temperature that changes between 80°C and 109°C and the effectiveness of the heat exchanger. Furthermore, the contribution ratios and the order of importance of the parameters affecting the performance of the cycle are evaluated using the Taguchi statistical method. As a result, the effect of the waste-heat source temperature on the performance of the system is greater than the other parameters examined, and the contribution ratio of this parameter is determined as 59.80%. However, effectiveness of heat exchanger is found to be the least effective parameter and the effect ratio is calculated as 2.18%. In addition, the best and worst operating conditions are determined from the statistical analysis, and in these conditions, the thermal efficiencies of the Organic Rankine Cycle are obtained as 15.26% and 8.61%, respectively.

Anahtar Kelimeler

Organic Rankine cycle, Working fluids, Performance analysis, Heat exchanger, Thermal efficiency

Kaynakça

• Arslanoglu N. and Yigit A., 2017, Investigation of Efficient Parameters on Optimum Insulation Thickness Based on Theoretical-Taguchi Combined Method, Environmental Progress & Sustainable Energy, 36, 1824-1831.
• Cayer E., Galanis N. and Nasreddine H., 2010, Parametric Study and Optimization of a Transcritical Power Cycle Using a Low Temperature Source, Applied Energy, 87, 1349-1357.
• Celik N. and Turgut E., 2012, Design Analysis of an Experimental Jet Impingement Study by Using Taguchi Method, Heat and Mass Transfer, 48, 1408-1413.
• Cengel Y. A. and Boles A., 2011, Thermodynamics: An Engineering Approach (Seventh Ed.), McGraw-Hill Inc., New York, USA.
• Cihan E., 2014, Cooling Performance Investigation of a System with an Organic Rankine Cycle Using Waste Heat Sources, Journal of Thermal Sciences and Technology, 34, 101-109.
• Dai Y., Wang J. and Gao L., 2009, Parametric Optimization and Comparative Study of Organic Rankine Cycle (ORC) for Low Grade Waste Heat Recovery, Energy Conversion and Management, 50, 576-582.
• Deethayat T., Kiatsiriroat T. and Thawonngamyingsakul C., 2015, Performance Analysis of an Organic Rankine Cycle with Internal Heat Exchanger Having Zeotropic Working Fluid, Case Studies in Thermal Engineering, 6, 155-161.
• Drescher U. and Bruggemann D., 2007, Fluid Selection for the Organic Rankine Cycle (ORC) in Biomass Power and Heat Plants, Applied Thermal Engineering, 27, 223-228.
• Ergun A., Ozkaymak M. and Kılıcaslan E., 2016, Power Generation Applications with Organic Rankine Cycle from Low Temperature Heat Sources, Duzce University Journal of Science & Technology, 4, 686-696.
• Facao J., Palmero-Marrero A. and Oliveira A. C., 2008, Analysis of a Solar Assisted Micro-Cogeneration ORC System, International Journal of Low-Carbon Technologies, 3, 254-264.
• Ferrara F., Gimelli A. and Luongo A., 2014, Small-Scaled Concentrated Solar Power (CSP) Plant: ORC’s Comparison for Different Organic Fluids, Energy Procedia, 45, 217-226.
• Gunes S., Manay E., Senyigit E. and Ozceyhan V. A., 2011, Taguchi Approach for Optimization of Design Parameters in a Tube with Coiled Wire Inserts, Applied Thermal Engineering, 31, 2568-2577.
• He C., Liu C., Gao H., Xie H., Li Y., Wu S. and Xu J., 2012, The Optimal Evaporation Temperature and Working Fluids for Subcritical Organic Rankine Cycle, Energy, 38, 136-143.
• Hettiarachchi H. D. M., Golubovic M., Worek W. M. and Ikegami Y., 2007, Optimum Design Criteria for an Organic Rankine Cycle Using Low-Temperature Geothermal Heat Sources, Energy, 32, 1698-1676.
• Hung T. C., Wang S. K., Kuo C. H., Pei B.S. and Tsai K. F., 2010, A Study of Organic Working Fluids on System Efficiency of an ORC Using Low-Grade Energy Sources, Energy, 35, 1403-1411.
• Kaynakli O., Bademlioglu A. H., Yamankaradeniz N. and Yamankaradeniz R., 2017, Thermodynamic Analysis of the Organic Rankine Cycle and the Effect of Refrigerant Selection on Cycle Performance, International Journal of Energy Applications and Technologies, 4, 101–108.
• Khennich M. and Galanis N., 2012, Optimal Design of ORC Systems with a Low-Temperature Heat Source, Entropy, 14, 370-389.
• Li T., Fu W. and Zhu J., 2014, An Integrated Optimization for Organic Rankine Cycle Based on Entransy Theory and Thermodynamics, Energy, 72, 561-573.
• Li P., Han Z., Jia X., Mei Z., Han X. and Wang Z., 2019, Comparative Analysis of an Organic Rankine Cycle with Different Turbine Efficiency Models Based on Multi-Objective Optimization, Energy Conversion and Management, 185, 130-142.
• Pulyaev S., Akgoz O. and Cetin B., 2013, Recovery of Waste Heat in Power Plants Using Organic Rankine Cycle, in: 19th Congress of Thermal Sciences and Technology, Samsun, Turkey, 978-982.
• Quoilin S., Declaye S., Tchanche B. F. and Lemort V., 2011, Thermo-Economic Optimization of Waste Heat Recovery Organic Rankine Cycles, Applied Thermal Engineering, 31, 2885-2893.
• Quoilin S., Van den Broeck M., Declaye S., Dewallef P. and Lemort V., 2013, Techno-Economic Survey of Organic Rankine Cycle (ORC) Systems, Renewable and Sustainable Energy Reviews, 22, 168-186.
• Ross P. J., 1996, Taguchi Techniques for Quality Engineering (Second Ed.), McGraw-Hill Inc., New York, USA.
• Roy J. P., Mishra M. K. and Mishra A., 2010, Parametric Optimization and Performance Analysis of a Waste Heat Recovery System Using Organic Rankine Cycle, Energy, 35, 5049-5062.
• Saleh B., Koglbauer G., Wendl M. and Fischer J., 2007, Working Fluids for Low-Temperature Organic Rankine Cycles, Energy, 32, 1210-1221.
• Shengjun Z., Huaixin W. and Tao G., 2011, Performance Comparison and Parametric Optimization of Subcritical Organic Rankine Cycle (ORC) and Transcritical Power Cycle System for Low-Temperature Geothermal Power Generation, Applied Energy, 88, 2740-2754.
• Tchanche B. F., Papadakis G., Lambrinos G. and Frangoudakis A., 2009, Fluid Selection for a Low-Temperature Solar Rankine Cycle, Applied Thermal Engineering, 29, 2468-2476.
• Turgut E., Cakmak G. and Yildiz C., 2012, Optimization of the Concentric Heat Exchanger with Injector Turbulators by Taguchi Method, Energy Conversion and Management, 53, 268-275.
• Verma V. and Murugesan K., 2014, Optimization of Solar Assisted Ground Source Heat Pump System for Space Heating Application by Taguchi Method and Utility Concept, Energy and Buildings, 82, 296-309.
• Wang X. D., Zhao L., Wang J. L., Zhang W. Z., Zhao X. Z. and Wu W., 2010, Performance Evaluation of a Low-Temperature Solar Rankine Cycle System Utilizing R245fa, Solar Energy, 84, 353-364.
• Yakut K., Alemdaroglu N., Kotcioglu I. and Celik C., 2006, Experimental Investigation of Thermal Resistance of a Heat Sink with Hexagonal Fins, Applied Thermal Engineering, 26, 2262-2271.
• Yamamoto T., Furuhata T., Arai N. and Mori K., 2001, Design and Testing of the Organic Rankine Cycle, Energy, 26, 239-251.
• Yamankaradeniz N., Bademlioglu A. H. and Kaynakli O., 2018, Performance Assessments of Organic Rankine Cycle with Internal Heat Exchanger Based on Exergetic Approach, Journal of Energy Resources Technology, 140, 102001-102008.
• Yuce C., Tutar M., Karpat F. and Yavuz N., 2016, The Optimization of Process Parameters and Microstructural Characterization of Fiber Laser Welded Dissimilar HSLA and MART Steel Joints, Metals, 6, 245.
• Zare V. A., 2016, Comparative Thermodynamic Analysis of Two Tri-Generation Systems Utilizing Low-Grade Geothermal Energy, Energy Conversion and Management, 118, 264-274.
• Zeng M., Tang L. H., Lin M. and Wang Q. W., 2010, Optimization of Heat Exchangers with Vortex-Generator Fin by Taguchi Method, Applied Thermal Engineering, 30, 1775-1783.
• Zhang S. J., Wang H. X. and Guo T., 2011, Performance Comparison and Parametric Optimization of Subcritical Organic Rankine Cycle (ORC) and Transcritical Power Cycle System for Low-Temperature Geothermal Power Generation, Applied Energy, 88, 2740-2754.