American Journal of Renewable and Sustainable Energy
Articles Information
American Journal of Renewable and Sustainable Energy, Vol.1, No.2, Jul. 2015, Pub. Date: Jul. 10, 2015
Thermodynamic Performance Analysis of Different Organic Rankine Cycles to Generate Power from Renewable Energy Resources
Pages: 31-38 Views: 3986 Downloads: 2142
Authors
[01] Abtin Ataei, Department of Energy Engineering, Graduate School of the Environment and Energy, Science and Research Branch, Islamic Azad University, Tehran, Iran; Mechanical and Aerospace Engineering / Renewable and Clean Energy, University of Dayton, Dayton, Ohio, USA.
[02] Farid Safari, Department of Energy Engineering, Graduate School of the Environment and Energy, Science and Research Branch, Islamic Azad University, Tehran, Iran.
[03] Jun-Ki Choi, Mechanical and Aerospace Engineering / Renewable and Clean Energy, University of Dayton, Dayton, Ohio, USA.
Abstract
Organic Rankine cycles (ORCs), are promising technologies for generating power from low and medium grade of heat resources such as geothermal fluids or the synthetic gas from biomass gasification, that have received lots of attention during past twenty years. In this study, thermodynamic evaluations were used based on the first and second laws of thermodynamics to compare different organic fluids and different configuration of Rankine cycles. Energy and Exergy analysis of different configurations of ORCs including basic ORC, basic ORC with Internal Heat Exchanger (IHE), Regenerative ORC and Regenerative ORC with IHE for four dry organic fluids including R113, RC318, iso-pentane and n-hexane, in various ambient temperatures, were simulated using Engineering Equation Solver (EES). In addition, environmental performances were evaluated using the sustainability index method which was resulted from Exergy analysis. The results indicated that the Regenerative ORC with IHE has the best thermodynamic performance with thermal and second law efficiency of 0.217 and 0.642, respectively. It was concluded that the n-hexane which has the highest boiling point and critical temperature is the most efficient working fluid for the cycle. The results indicated that a reduction in ambient temperature causes an increment in both thermal and second law efficiencies and makes the system more sustainable due to an increment in the sustainability index.
Keywords
Exergy Destruction, Regeneration, Heat Exchanger, Sustainability Index
References
[01] REN21. 2014. Renewables 2014 Global Status Report. (Paris:REN21Seretriat)
[02] Saleh, B., Koglbauer, G., Wendland, M., and Fischer, J., "working fluids for low temperature organic Rankine cycles," Energy, Vol. 32, pp.1210-1221, 2007.
[03] A.Sheikhi, A.M.Ranjbar, H.Oraee, "Financial analysis and optimal size and operation for a multicarrier energy system," Energy and Buildings,Vol.48, pp.71-78, May 2012.
[04] S. Bahrami, A. Sheikhi, "An Optimal Feed-In-Tariff Policy for Renewable Energies UsingA Markov Model,"American Journal of Renewable and Sustainable Energy, Vol. 1, No. 1,pp.1-8, May 2015.
[05] H. Chen, D. Goswami, E. K. Stefanakos, "A review of thermodynamic cycles and working fluids for the conversion of low-grade heat," Renewable and Sustainable Energy Reviews. Vol.14, pp.3059–3067, 2010.
[06] T. C. Hung, "Waste heat recovery of organic Rankine cycle using dry fluids," Energy Conversion and Management, Vol.36, pp.539-553, 2001.
[07] P. J. Mago, L. M. C. harma,C. C. Somayaji, "Performance analysis of different working fluids for use in organic Rankine cycles," Proc. Imech E., Vol. 221 Part A: journal Of Power and Energy, pp.225-264, 2007.
[08] M. Yari, "Performance analysis of the different Organic Rankine Cycles (ORCs) using Dry Fluids. International Journal of Exergy,Vol.6, No.3, pp.323-342, 2009.
[09] G. Cammarata, L. Cammarata, G. Petrone, "Thermodynamic analysis of ORC for energy production from geothermal resource," 68th Conference of the Italian Thermal Machines Engineering Association, 2003.
[10] Y. A. Chengel, and M. A. Boles, "Thermodynamics An Engineering Approach," 6th ed., McGraw-Hill Inc., New York, 2007.
[11] M.J. Moran, H.N. Shapiro, "Fundamentals of Engineering Thermodynamics, 5th ed., John Wiley and Sons, New York, 2006.
[12] M. A. Rosen, I. Dincer, M. Kanoglu, "Role of exergy in increasing efficiency and sustainability and reducing environmental impact," Energy Policy, vol. 36, pp. 128-137, 2008.
[13] L. Connelly, C. P. Koshland, "Two aspects of consumption: using an exergy-based measure of degradation to advance the theory and implementation of industrial ecology," Resources, Conservation and Recycling, Vol.19, pp. 199-217, 1997.
[14] Y. Kalinci, A. Hepbasli, I.Dincer, "Performance assessment of hydrogen production from a solar-assisted biomass gasification system," International Journal of Hydrogen Energy, Vol. 38, pp. 6120-6129, 2013.
[15] K. Wark, D. E. Richard, "Thermodynamics," 6th edition, McGraw-Hill INC., New York, 1999.
[16] Drescher, U., Bruggemann, D, "Fluid selection for the organic Rankine cycle in biomass power and heat plants," Applied Thermal Engineering, Vol.27, pp.223-228, 2007.
[17] H. D. M.Hettiarachchia, M. Golubovika,W. M. Woreka,Y. Ikegami, "Optimum design criteria for an organic Rankine cycle using low-temperature geothermal heat sources," Energy, Vol.32, pp.1698-1706, 2007.
[18] A. C .Mcmahan, "Design and optimization of organic Rankine cycle solar thermal power plants," MS Thesis, University of Wisconsin at Madison, 2006.
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