THERMAL SCIENCE

International Scientific Journal

Authors of this Paper

External Links

Nenad Mustapić

,

Vladislav Brkić

,

Matija Kerin

SUBCRITICAL ORGANIC RANKING CYCLE BASED GEOTHERMAL POWER PLANT THERMODYNAMIC AND ECONOMIC ANALYSIS

ABSTRACT
This paper is focused both on the thermodynamic and economic analysis of an organic Rankine cycle (ORC) based geothermal power plant. The analysis is applied to a case study of the geothermal field Recica near the city of Karlovac. Simple cycle configuration of the ORC was applied. Thermodynamic and economic performance of an ORC geothermal system using 8 working fluids: R134a, isobutane, R245fa, R601, R601a, R290, R1234yf, and R1234ze(E)], with different critical temperatures are analyzed. The thermodynamic analysis is performed on the basis of the analysis of influence of the operation conditions, such as evaporation and condensation temperatures and pressures, and evaporator and con-denser pinch point temperature difference, on the cycle characteristics such as net power output, and plant irreversibility. The economic analysis is performed on the basis of relationship between the net power output and the total cost of equipment used in the ORC. Mathematical models are defined for proposed organic Rankine geothermal power plant, and the analysis is performed by using the software package engineering equation solver. The analysis reveals that the working fluids, n-pentane and isopentane, show the best economic performances, regardless the evaporation temperatures, while the working fluid R1234yf and R290 have the best thermodynamic performances. In addition, each analyzed working fluid has its corresponding economically optimal condensation temperature (and condensation pressure). Economically optimal pinch point temperature difference of evaporator has different values, depending on the working fluid, while pinch point temperature difference of condenser has similar values for all analyzed working fluids. Analysis results demonstrate that the subcritical ORC geothermal power plant represents a promising option for electricity production application.
KEYWORDS
organic Rankine cycle, geothermal power generation, thermodynamic analysis, economic analysis
PAPER SUBMITTED: 2018-01-04
PAPER REVISED: 2018-05-10
PAPER ACCEPTED: 2018-05-17
PUBLISHED ONLINE: 2018-09-23
DOI REFERENCE: https://doi.org/10.2298/TSCI180104275M
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2018, VOLUME 22, ISSUE Issue 5, PAGES [2137 - 2150]
REFERENCES
  1. Barbier, E., Geothermal Energy Technology and Current Status: An Overview, Renewable Sustainable Energy Reviews, 6 (2002), 1-2, pp. 3-65
  2. Franco, A., Power Production from a Moderate Temperature Geothermal Resource with Regenerative Organic Rankine Cycles, Energy for Sustainable Development, 15 (2011), 4, pp. 411-419
  3. DiPippo, R., Geothermal Power Plants: Principles, Applications, Case Studies and Environmental Impact (2nd edition), Butterworth-Heinemann, New York, USA, 2008
  4. Bronicki, L., Organic Rankine Cycle in Geothermal Power Plants 25 Years of ORMAT Experience, UGI News, VI (2007), 17, pp. 2-8
  5. Bošnjak, R., et al., A Program of Geothermal Energy Usage in the Republic of Croatia, Energy Institute "Hrvoje Požar", Zagreb, Croatia, 1998
  6. Guzović, Z., et al., Possibilities of Electricity Generation in the Republic Croatia by Means of Geothermal Energy, Energy, 35 (2010), 8, pp. 3429-3440
  7. Kurevija, T., et al., Analysis of Geothermal Energy Exploitation on Karlovac Geothermal Field, Nafta, 61 (2010), 4, 2010, pp. 191-197
  8. Guzović, Z., et al., Influence of Working Fluid on ORC with Low Temperature Geothermal Source - Case Study Geothermal Power Plant "Babina Greda", Conference Paper, 10th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Orlando, Florida, USA, 2014
  9. Walraven, D., Optimization of the Energy Conversion Starting from Low-Temperature Heat, Ph. D. thesis, Aerenberg Doctoral School, KU Leuven, Leuven, Belgium, 2014
  10. Li, X. G., et al., Working Fluid Selection Based on Critical Temperature and Water Temperature in Organic Rankine Cycle, Science China Technological Sciences, 58 (2015), 1, pp. 138-146
  11. Vivian, J., et al., A General Framework to Select Working Fluid and Configuration of ORCs for Low-to-medium Temperature Heat Sources, Applied Energy, 156 (2015), Oct., pp. 727-746
  12. ***, ASHRAE, ANSI/ASHRAE Standard 34-2013, Designation and Safety Classification of Refrigerants, Atlanta, Georgia, USA, 2013
  13. Dai., Y., et al., Parametric Optimization and Comparative Study of Organic Rankine Cycle (ORC) for Low Grade Waste Heat Recovery, Energy Conversion and Management, 50 (2009), 3, pp. 576‐582
  14. Leibowitz, H., et al., Cost Effective Small-Scale ORC Systems for Power Recovery from Low Grade Heat Sources, Conference Paper No. IMECE2006-14284, ASME International Mechanical Engineering Congress and Exposition Advanced Energy Systems Chicago, Chicago, Illinois, USA, 2006, pp. 521-527
  15. Nellis, G., Klein, S., Heat Transfer, Cambridge University Press, Cambridge, UK, 2009
  16. Bejan, A., Kraus, A. D., Heat Transfer Handbook, John Wiley and Sons Inc., New Jersey, USA, 2003
  17. Gnielinski, V., New Equations for Heat and Mass Transfer in the Turbulent Pipe and Channel Flow, Int. Chem. Eng., 16 (1976), 2, pp. 359-368
  18. Kern, D. Q., Process Heat Transfer, McGraw-Hill, New York, USA, 1950
  19. Kakac, S., et al., Heat Exchangers: Selection, Rating, and Thermal Design (2nd ed.), CRC Press, Boca Raton, Florida, USA, 2002
  20. Kern, D. Q., Kraus, A. D., Extended Surface Heat Transfer, McGraw-Hill, New York, USA, 1972
  21. Thome, J. R., Engineering Data Book III, Swiss Federal Institute of Technology, Lausanne, Switzerland, 2004
  22. Gungor, K. E., Winterton, R. H. S., Simplified General Correlation for Saturated Flow Boiling and Comparisons of Correlations with Data, Chem. Eng. Res. Des., 65 (1987), 2, pp. 148-156
  23. Shah, M. M., A General Correlation for Heat Transfer During Film Condensation Inside Pipes, International Journal of Heat and Mass Transfer, 22 (1979), 4, pp. 547-556
  24. Ganguli, A., et al., Parametric Study of Air-cooled Heat Exchanger Finned Tube Geometry, Conference Parametric Study of Air-cooled Heat Exchanger Finned Tube Geometry, AIChE Simp. Ser., 81 (1985), 245, pp. 122-128
  25. VDI-Gesellschaft Verfahrenstechnik und Chemieingenieurwesen & VDI Gesellschaft, VDI Heat Atlas, Springer Verlag, Berlin, Germany, 2010
  26. Friedel, L., Improved Friction Pressure Drop Correlations for Horizontal and Vertical Two-phase Pipe Flow, Rohre-Rohreleitungsbau-Rohreleitungstransport, 18 (1979), 2, pp. 485-491
  27. Wright, M. F., Plate-Fin-and-Tube Condenser Performance and Design for a Refrigerant R-410A Air-conditioner, Ms. C. thesis, Georgia Institute of Technology School of Mechanical Engineering, Atlanta, Georgia, USA, 2000
  28. Rich, D. G., The Effect of Fin Spacing on the Heat Transfer and Friction Performance of Multirow, Smooth Plate Fin Tube Heat Exchangers, ASHRAE Transactions, 79 (1973), 2, pp. 135-145
  29. Robinson, K. K., Briggs, D. E., Pressure Drop of Air Flowing Across Triangular Pitch Banks for Finned Tubes, AIChE Chem. Eng. Prog. Symp. Ser., 62 (1966), 64, pp. 177-183
  30. Turton, R., et al., Analysis, Synthesis and Design of Chemical Processes (3rd ed.), Prentice Hall, Boston, USA, 2009
  31. Toffolo, A., et al., A Multi-criteria Approach for the Optimal Selection of Working Fluid and Design Parameters in Organic Rankine Cycle System, Applied Energy, 121 (2014), May, pp. 219-232
  32. Yang, M.-H., Yeh, R.-H., Thermodynamic and Economic Performances Optimization of an Organic Rankine Cycle System Utilizing Exhaust Gas of a Large Marine Diesel Engine, Applied Energy, 149 (2015), July, pp. 1-12
  33. Guzović, Z., Majcen, B., Possibilities of Electricity Generation in the Republic of Croatia from Medium- temperature Geothermal Sources (in Croatian), Proceedings, 9. Međunarodno Znanstveno-stručno Savjetovanje Energetska i Procesna Postrojenja i 4. Međunarodni Forum o Obnovljivim Izvorima Energije, Dubrovnik, Croatia, 2010
  34. Klein, S. A., EES, Engineering Equation Solver, F‐Chart Software, Madison, Wisconsin, USA, 2004
  35. Delgado-Torres, A. M., Garcia-Rodriguez, L., Preliminary Assessment of Solar Organic Rankine Cycles for Driving a Desalination System, Desalination, 216 (2007), 1-3, pp. 252-275
PDF VERSION [DOWNLOAD]
Subcritical organic ranking cycle based geothermal power plant thermodynamic and economic analysis

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence