Wang Yu-peng, Luo Xiang-long, Liang Jun-wei, et al. A Simultaneous Optimization of Working Fluid Design and System Parameters in Organic Rankine Cycle[J]. 2020, 37(1): 69-80.
Wang Yu-peng, Luo Xiang-long, Liang Jun-wei, et al. A Simultaneous Optimization of Working Fluid Design and System Parameters in Organic Rankine Cycle[J]. 2020, 37(1): 69-80.DOI: 10.12052/gdutxb.190009.
A Simultaneous Optimization of Working Fluid Design and System Parameters in Organic Rankine Cycle
The working fluid is the carrier of energy conversion in the organic Rankine cycle (ORC)
and its matching with the cold and heat sources directly affects the performance of the ORC system. While the existing working fluid provides a limited improvement for the performance of the ORC system
the design of the novel working fluid is very important for improving the performance of the ORC. The modeling and solving method based on computer-aided molecular design (CAMD) for working fluid design and ORC system is simultaneously optimized
and the traditional CAMD model is improved. A mixed integer nonlinear mathematical programming (MINLP) model with the maximum output net power of ORC system as the optimization target is established
and the solving strategy is proposed. Based on 9 basic elements
37 groups are selected and applied to the established simultaneous optimization model. The optimal working fluids under the conditions of heat source range of 353.15~463.15 K and cold source range of 293.15~298.15 K are obtained and compared with existing working fluids. The comparisons of net power by ORC show that the novel working fluid is 12.46% higher than the existing working fluids. A sensitivity analysis is performed on the thermodynamic properties such as critical temperature
critical pressure
boiling point temperature
specific heat capacity
density and relative molecular mass involved in calculating the ORC cycle performance.
关键词
Keywords
references
XU J J, LUO X L, WANG Y Z, et al . Optimum selection of ORC working fluid using multi-level fuzzy optimization and non-structural fuzzy decision [J ] . CIESC Journal, 2015, 66(3): 1051-1058.
HUANG R L, LUO X L, LIANG Z H, et al . Multi-objective optimization of Rankine cycle using R245fa/pentane based on liquid-vapor separation [J ] . CIESC Journal, 2018, 69(5): 2040-2048.
BAO J, ZHAO L. A review of working fluid and expander selections for organic Rankine cycle [J]. Renewable and Sustainable Energy Reviews, 2013, 24: 325-342.
HE C, LIU C, ZHOU M, et al . A new selection principle of working fluids for subcritical organic Rankine cycle coupling with different heat sources [J ] . Energy, 2014, 68: 283-291.
YU H, FENG X, WANG Y. Working fluid selection for organic Rankine cycle (ORC) considering the characteristics of waste heat sources [J]. Industrial Engineering Chemistry Research, 2016, 55(5): 1309-1321.
GHOLIVAND M B, KHODADADIAN M, AHMADI F. Computer aided-molecular design and synthesis of a high selective molecularly imprinted polymer for solid-phase extraction of furosemide from human plasma [J]. Analytica Chimica Acta, 2010, 658(2): 225-232.
VALENCIA-MARQUEZ D, FLORES-TLACUAHUAC A, VASQUEZ-MEDRANO R. Simultaneous optimal design of an extractive column and ionic liquid for the separation of bioethanol-water mixtures [J]. INDUSTRIAL Engineering Chemistry Research, 2012, 51(17): 5866-5880.
STRUEBING H, GANASE Z, KARAMERTZANIS P G, et al . Computer-aided molecular design of solvents for accelerated reaction kinetics [J ] . Nature Chemistry, 2013, 5(11): 952-957.
PAPADOPOULOS A I, STIJEPOVIC M, LINKE P. On the systematic design and selection of optimal working fluids for Organic Rankine Cycles [J]. Applied Thermal Engineering, 2010, 30(6-7): 760-769.
PALMA-FLORES O, FLORES-TLACUAHUAC A, CANSECO-MELCHOR G. Optimal molecular design of working fluids for sustainable low-temperature energy recovery [J]. Computers Chemical Engineering, 2015, 72: 334-349.
PALMA-FLORES O, FLORES-TLACUAHUAC A, CANSECO-MELCHORB G. Simultaneous molecular and process design for waste heat recovery [J]. Energy, 2016, 99: 32-47.
LEMMON E W, HUBER M L, MCLINDEN M O. NIST standard reference database 23: reference fluidthermodynamicandtransportproperties-REFPROP9.1[DB ] . Gaithersburg: National Institute of Standards and Technology, 2013.(2013-04-18)[2019-01-10 ] https://www.nist.gov/srd/refprop .
CHURI N, ACHENIE L E K. Novel mathematical programming model for computer aided molecular disign [J]. Ind Eng Chen Res, 1966, 35(10): 3788-3794.
JOBACK K, REID R. Estimation of pure-component properties from group-contributions [J]. Chemical Engineering Communications, 1987, 57(1-6): 233-243.
SU W, ZHAO L, DENG S. Developing a performance evaluation model of organic rankine cycle for working fluids based on the group contribution method [J]. Energy Conversion and Management, 2017, 132: 307-315.
REID R C, PRAUSNITZ J M, SHERWOOD T K. The properties of gases and liquids[M]. New York: McGraw-Hill, 2001.
BENSON R S. Advanced engineering thermodynamics: thermodynamics and fluid mechanics series[M]. Netherlands: Elsevier, 2013.
AMBROSE D, TSONOPOULOS C, NIKITIN E D, et al . Vapor-liquid critical properties of elements and compounds. 12. review of recent data for hydrocarbons and non-hydrocarbons [J ] . Journal of Chemical Engineering Data, 2015, 60(12): 3444-3482.
AMBROSE D, TSONOPOULOS C, NIKITIN E D. Vapor-liquid critical properties of elements and compounds. 11. organic compounds containing B + O; Halogens + N, + O, + O + S, + S, + Si; N + O; and O + S, + Si [J]. Journal of Chemical Engineering Data, 2009, 54(3): 669-689.
MARSH K N, ABRAMSON A, AMBROSE D, et al . Vapor-liquid critical properties of elements and compounds. 10. organic compounds containing halogens [J ] . Journal of Chemical Engineering Data, 2007, 52(5): 1509-1538.
MARSH K N, YOUNG C L, MORTON D W, et al . Vapor-liquid critical properties of elements and compounds. 9. organic compounds containing nitrogen [J ] . Journal of Chemical Engineering Data, 2006, 51(2): 305-314.
BROWN J S, BRIGNOLI R, DAUBMAN S. Methodology for estimating thermodynamic parameters and performance of working fluids for organic Rankine cycles [J]. Energy, 2014, 73: 818-828.