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Thermodynamic Analysis of an Energy Recovery System in High Power Thermal Engine Based on a Supercritical CO2 Brayton Cycle


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DOI: https://doi.org/10.15866/irecon.v8i1.18610

Abstract


Internal combustion engines have limited efficiency and high environmental impact due to polluting emissions from the use of fossil fuels. To expect that in recent years significant improvements in their efficiency and emissions have been achieved, the maximum efficiency of these thermal machines is around 40%. In this study, a proposal of an energy recovery system in the exhaust stream of a high-power natural gas Genset using a Brayton cycle with supercritical CO2 is presented. In order to study the viability of the system, a thermodynamic analysis is carried out to study the influence of operational parameters on variables of the Brayton cycle as energy efficiency and destroyed exergy in the different components. On the results obtained, an optimization process has been carried out to improve the proposed energy recovery system. For this reason, the set of operational parameters of a coupling cycle has been found using a vortex tube, so the potential of the use of the exhaust gases will be increased, identifying an improvement of 14% in the heat available for the recovery process and a 3.8% improvement in the overall efficiency of the system. It has been identified that it has been possible to recover 5.3% of the operating power of the engine with the proposed system, allowing reducing specific emissions, and improving the performance of the thermal machine.
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Keywords


Energy Recovery System; Efficiency; Gas Engine; Optimization; Supercritical Cycle

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References


G. Valencia, A. Fontalvo, Y. Cárdenas, J. Duarte, and C. Isaza, Energy and Exergy Analysis of Different Exhaust Waste Heat Recovery Systems for Natural Gas Engine Based on ORC, Energies, vol. 12, no. 12, p. 2378, 2019.
https://doi.org/10.3390/en12122378

G. Valencia, J. Núñez, and J. Duarte, Multiobjective optimization of a plate heat exchanger in a waste heat recovery organic Rankine cycle system for natural gas engines, Entropy, vol. 21, no. 7, p.655, 2019.
https://doi.org/10.3390/e21070655

M. Herrara, E.C. Pacheco, J.D. Forero, A.F. Lascano, and R.V. Padilla, Exergetic analysis of a supercritical Brayton cycle with carbon dioxide as working fluid, INGECUC, vol. 14, no. 1, pp. 159–170, 2018.

G.V. Ochoa, C.A. Peñaloza, and J.D. Forero, Thermo-Economic Assessment of a Gas Microturbine-Absorption Chiller Trigeneration System under Different Compressor Inlet Air Temperatures, Energies, vol. 12, no. 24, pp. 1-18, 2019.
https://doi.org/10.3390/en12244643

Orozco, T., Herrera, M., Duarte Forero, J., CFD Study of Heat Exchangers Applied in Brayton Cycles: a Case Study in Supercritical Condition Using Carbon Dioxide as Working Fluid, (2019) International Review on Modelling and Simulations (IREMOS), 12 (2), pp. 72-82.
https://doi.org/10.15866/iremos.v12i2.17221

Y. Zhang, H. Li, W. Han, W. Bai, Y. Yang, and M. Yao, Improved design of supercritical CO2 Brayton cycle for coal-fired power plant, Energy, vol. 155, pp. 1–14, 2018.
https://doi.org/10.1016/j.energy.2018.05.003

F.G. Battisti, J.M. Cardemil, F.M. Miller, and A.K. da Silva, Normalized performance optimization of supercritical, CO2-based power cycles, Energy, vol. 82, pp. 108-118, 2015.
https://doi.org/10.1016/j.energy.2015.01.005

G.A. Diaz, J. Duarte, J. Garcia, A. Rincon, A. Fontalvo, A. Bula, and R.V. Padilla, Maximum power from fluid flow by applying the first and second laws of thermodynamics, Journal of Energy Resources Technology, vol. 139, no. 3, 2017.
https://doi.org/10.1115/1.4035021

F. Hernández-Jiménez, A. Soria-Verdugo, A. Acosta-Iborra, and D. Santana, Exergy recovery from solar heated particles to supercritical CO2, Applied Thermal Engineering, vol. 146, pp. 469-481, 2019.
https://doi.org/10.1016/j.applthermaleng.2018.10.009

S. Kannan, A. Saleh, and F. Nasir, Review on bioethanol as alternative fuel for spark-ignition engines, Renewable and Sustainable Energy Reviews, vol. 56, pp. 820–835, 2016.
https://doi.org/10.1016/j.rser.2015.11.089

R. Ramírez, A.S. Gutiérrez, J.J.C. Eras, K. Valencia, B. Hernández, and J.D. Forero, Evaluation of the energy recovery potential of thermoelectric generators in diesel engines, Journal of Cleaner Production, vol. 241, p. 118412, 2019.
https://doi.org/10.1016/j.jclepro.2019.118412

Y. Li, M. Jia, Y. Chang, S.L. Kokjohn, and R.D. Reitz, Thermodynamic energy and exergy analysis of three different engine combustion regimes, Applied Energy, vol. 180, pp. 849–858, 2016.
https://doi.org/10.1016/j.apenergy.2016.08.038

Orozco, W., Acuña, N., Duarte Forero, J., Characterization of Emissions in Low Displacement Diesel Engines Using Biodiesel and Energy Recovery System, (2019) International Review of Mechanical Engineering (IREME), 13 (7), pp. 420-426.
https://doi.org/10.15866/ireme.v13i7.17389

B. Zhang, and X. Guo, Prospective applications of Ranque – Hilsch vortex tubes to sustainable energy utilization and energy efficiency improvement with energy and mass separation, Renewable and Sustainable Energy Reviews, vol. 89, pp. 135–150, 2016.
https://doi.org/10.1016/j.rser.2018.02.026

Y. Xue, M. Arjomandi, and R. Kelso, Energy analysis within a vortex tube, Experimental Thermal and Fluid Science, vol. 52, pp. 139–145, 2014.
https://doi.org/10.1016/j.expthermflusci.2013.09.004

J. Zhu, and S. Elbel, Vortex Tube Heat Booster to Improve Performance of Heat Driven Cooling Cycles for Automotive Applications, SAE Technical Paper, no. 2016-01-0245, 2018.
https://doi.org/10.4271/2016-01-0245

H.A. Kandil, and S.T. Abdelghany, Computational investigation of different effects on the performance of the Ranque e Hilsch vortex tube, Energy, vol. 84, pp. 207-2018, 2015.
https://doi.org/10.1016/j.energy.2015.02.089

A. Fontalvo, H. Pinzon, J. Duarte, A. Bula, A.G. Quiroga, and R.V. Padilla, Exergy analysis of a combined power and cooling cycle, Applied Thermal Engineering, vol. 60, no. (1–2), pp. 164–171, 2013.
https://doi.org/10.1016/j.applthermaleng.2013.06.034

R.V. Padilla, R.G. Benito, and W. Stein, An Exergy Analysis of Recompression Supercritical CO2 cycles with and without Reheating, Energy Procedia, vol. 69, pp. 1181–1191, 2015.
https://doi.org/10.1016/j.egypro.2015.03.201

G. Valencia Ochoa, C. Acevedo Peñaloza, and J. Duarte Forero, Thermoeconomic Optimization with PSO Algorithm of Waste Heat Recovery Systems Based on Organic Rankine Cycle System for a Natural Gas Engine, Energies, vol. 12, no. 21, p. 4165, 2019.
https://doi.org/10.3390/en12214165

F.G. Battisti, J.M. Cardemil, J. M., & da Silva, A multivariable optimization of a Brayton power cycle operating with CO2 as working fluid, Energy, vol. 112, pp. 908-916, 2016.
https://doi.org/10.1016/j.energy.2016.06.118

P. Sharan, T. Neises, and C. Turchi, Thermal desalination via supercritical CO2 Brayton cycle: Optimal system design and techno-economic analysis without reduction in cycle efficiency, Applied Thermal Engineering, vol. 152, pp. 499-514, 2019.
https://doi.org/10.1016/j.applthermaleng.2019.02.039

R.E. Perez, P.W. Jansen, and J.R. Martins, pyOpt : a Python-based object-oriented framework for nonlinear constrained optimization, Structural and Multidisciplinary Optimization, vol. 45, no. 1, pp. 101-118, 2012.
https://doi.org/10.1007/s00158-011-0666-3

Bozza, F., Teodosio, L., De Bellis, V., Cacciatore, D., Minarelli, F., Aliperti, A., A Modelling Study to Analyse the Compression Ratio Effects on Combustion and Knock Phenomena in a High-Performance Spark-Ignition GDI Engine, (2018) International Review on Modelling and Simulations (IREMOS), 11 (3), pp. 187-197.
https://doi.org/10.15866/iremos.v11i3.13771

Ghazi, M., Essadiqi, E., Mada, M., Faqir, M., Benabdellah, A., Seawater Desalination Pilot Plant: Optimal Design and Sizing of Solar Driven-Four Effect Evaporators Combined with Heat Integration Analysis, (2017) International Review on Modelling and Simulations (IREMOS), 10 (3), pp. 177-192.
https://doi.org/10.15866/iremos.v10i3.11349

J. Duarte, G. Amador, J. Garcia, A. Fontalvo, R. Vasquez Padilla, M. Sanjuan, and A. Gonzalez Quiroga, Auto-ignition control in turbocharged internal combustion engines operating with gaseous fuels, Energy, vol. 71, pp. 137–147, 2014.
https://doi.org/10.1016/j.energy.2014.04.040

M. Yadav, and S. Sawant, Effect of oxy-hydrogen blending with gasoline on vehicle performance parameters and optimization using response surface methodology, Journal of the Chinese Institute of Engineers, vol. 42, no. 7, pp. 553-564, 2019.
https://doi.org/10.1080/02533839.2019.1638305


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