CFD Study of Heat Exchangers Applied in Brayton Cycles: a Case Study in Supercritical Condition Using Carbon Dioxide as Working Fluid
(*) Corresponding author
The need to improve operational cost of power generation cycles has led to the realization of numerous researches related to the study of Brayton Cycles, as well as its components performance, in order to find a better way to satisfy the growing and the current energy demand, in addition to the implementation of technologies that can guarantee the least environmental impact. In the present study, CFD analyses of heat exchangers applied in Supercritical Brayton Cycles using Carbon Dioxide as working fluid have been performed, in order to determine the better condition that favor heat transfer, considered the development and the design of geometrical configuration that improves the fluid thermal behavior inside of the exchanger. The study is presented from the first and second law of thermodynamics, and the effects of operating parameters in two Brayton cycle configurations are analyzed: a) Simple Brayton Cycle and b) Main Compressor with partial intercooling (MC) Brayton cycle configuration. The effect of temperature, pressure, and another parameter like Reynolds number of the fluid inside the exchanger and cycle behavior are presented. Computational Fluid Dynamic (CFD) study is carried out in the PCHE (Printed Circuit Heat Exchanger) in order to investigate the behavior of this component during the operation of the cycle. Three geometrical configurations of the PCHE have been analyzed. The result shows that Zig-Zag configuration of 32.5° model has better behavior, due to its good performance at the time of heat transfer and lower pressure drop during the fluid flow. The study allows potentiating the application of this type of cycles in industrial applications.
Copyright © 2019 Praise Worthy Prize - All rights reserved.
Lazim, T., Kareem, Z., Jaafar, M., Abdullah, S., Abdulwahid, A., Heat Transfer Enhancement in Spirally Corrugated Tube, (2014) International Review on Modelling and Simulations (IREMOS), 7 (6), pp. 970-978.
G. Amador, J. Duarte, J. Garcia, A. Rincón, A. Fontalvo, A. Bula and R. Vazquez Padilla, Maximum Power From Fluid Flow by Applying the First and Second Laws of Thermodynamics, Journal of Energy Resources Technology, Vol. 139 (Issue 3): 032903, November 2016.
H. Chen, D. Y. Goswami, M. M. Rahman and E. K. Stefanakos, Converting Low-Grade Heat Into Power Using a Supercritical Rankine Cycle With Zeotropic Mixture Working Fluid, ASME 2010 4th International Conference on Energy Sustainability, American Society of Mechanical Engineers, pp. 469-478, Phoenix, Arizona, May 2010.
A. I. Kalina, Combined cycle and waste heat recovery power systems based on a novel thermodynamic energy cycle utilizing low-temperature heat for power generation, Joint Power Generation Conference: GT Papers American Society of Mechanical Engineers, pp. V001T02A003-V001T02A003, Indianapolis, Indiana, September 1983.
Y. D. Goswami, Solar thermal power technology: present status and ideas for the future, Energy sources, Vol. 20 (Issue 2), pp. 137-145, August 1998.
A. Fontalvo, H. Pinzon, J. Duarte, A. Bula, A.G. Quiroga, and R.V. Padilla, Exergy analysis of combined power and cooling cycle, Applied Thermal Engineering, Vol. 60 (Issue 1): 164-171, October 2013.
E. D. Rogdakis and K. A. Antonopoulos, A high efficiency NH3/H2O absorption power cycle, Heat Recovery Systems and CHP, Vol. 11 (Issue 4): 263-275, January 1991.
C.S. Turchi, Z. Ma, T.W. Neises and M.J. Wagner, Thermodynamic study of advanced supercritical carbon dioxide power cycles for concentrating solar power systems, Journal of Solar Energy Engineering, Vol. 135 (Issue 4): 041007, March 2013.
R.V. Padilla, Y.C.S. Too, R. Benito and W. Stein, Exergetic analysis of supercritical CO2 Brayton cycles integrated with solar central receivers, Applied Energy, Vol. 148: 348-365, June 2015.
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.
Gimelli, A., Muccillo, M., Regulation Problems of Combined Cycle Gas-Steam Turbine Power Plant in a Liberalized Market: Part II - Thermodynamic Analysis, (2016) International Review on Modelling and Simulations (IREMOS), 9 (5), pp. 348-354.
Y. Chen, P. Lundqvist, A. Johansson, and P. Platell, A comparative study of the carbon dioxide transcritical power cycle compared with an organic Rankine cycle with R123 as working fluid in waste heat recovery, Applied Thermal Engineering, Vol. 26 (Issue 17): 2142-2147, December 2006.
M.H. Palomino, E.C. Pacheco, J.D. Forero, A.F. Lascano and R.V. Padilla, Exergy analysis of a supercritical Brayton cycle with carbon dioxide as a working fluid, INGE CUC, Vol. 14 (Issue 1): 159-170, January 2018.
V. Dostal, M.J. Driscoll, and P. Hejzlar, A supercritical carbon dioxide cycle for next-generation nuclear reactors, Ph.D. dissertation, Dept. of Nuclear Engineering, Massachusetts Institute of Technology, 2004.
M. A. D. V. Kulhánek and V. Dostal, Thermodynamic analysis and comparison of supercritical carbon dioxide cycles, Proceedings of Supercritical CO2 Power Cycle Symposium, pp. 24 -25, Denver, Colorado, May 2011.
J. Sienicki, A. Moisseytsev and L. Krajtl, Utilization of the supercritical CO2 Brayton cycle with sodium-cooled fast reactors, 4th Internation Symposium-Supercritical CO2 Power Cycles, pp. 9-10, Pittsburgh, Pennsylvania, September 2014.
J. Sarkar, Performance of nanofluid-cooled shell and tube gas cooler in transcritical CO2 refrigeration systems, Applied Thermal Engineering, Vol. 31(Issue 14-15): 2541-2548, October 2011.
S. G. Kim, Y. Lee, Y. Ahn and J. I. Lee, CFD aided approach to design printed circuit heat exchangers for supercritical CO2 Brayton cycle application, Annals of Nuclear Energy, Vol. 92: 175-185, June 2016.
Q. Fu, J. Ding, J. Lao, W. Wang, and J. Lu, Thermal-hydraulic performance of printed circuit heat exchanger with supercritical carbon dioxide airfoil fin passage and molten salt straight passage. Applied Energy, Vol. 247: 594-604, August 2019.
F.R. Menter, Improved Two Equation k-ω Turbulence Models for Aerodynamic Flows, NASA Ames Research Center, NASA-National Aeronautics and Space Administration, Moffett Field, California, October 1992.
Salim, W., Ahmed, S., Prediction of Turbulent Swirling Flow in a Combustor Model, (2016) International Review of Aerospace Engineering (IREASE), 9 (2), pp. 43-50.
Mohcine, A., Gueraoui, K., Mahboub, M., Bensalah, H., Rtibi, A., Theoretical and Numerical Modeling of Turbulent Flow Problems in an Anaerobic Digester of Household Waste in Morocco, (2018) International Review of Civil Engineering (IRECE), 9 (1), pp. 40-49.
- There are currently no refbacks.
Please send any question about this web site to firstname.lastname@example.org
Copyright © 2005-2023 Praise Worthy Prize