Non-uniform Airflow Analysis of a Greenhouse Extractor Axial with Conical Diffusers Using CFD Simulation
Keywords:Wind power, computer modeling, ventilation, alternative sources, air tunnel
Interest in wind energy use has increased in recent years, specifically in the study field of protected agriculture. To harness residual wind energy produced in an air exhaust system, a wind energy recovery system could be installed using a horizontal axis wind turbine, designed according to airflow conditions at the system outlet. For this reason, airstream in a greenhouse exhaust system was analyzed, wherefore a set of extractors with different number and blades wide, air attack angle, angular velocity and geometry exhaust duct were designed. Subsequently, some simulations were performed by Computational Fluid Dynamics based on different boundary conditions and according two pipeline geometric configurations: with simple and double conical diffuser. 3D model resolution was based on numerically solving the Navier-Stokes equations by means of a finite volume discretization method. With this information 36 2D images of velocity contours and another 36 in 3D of the output airflow streamlines were obtained, also speed and power curves were constructed with respect to geometric model and exhaust system. Moreover, air flow, torque, and power of exhaust system were determined. Finally, opening and flow angle values inside and outside the exhaust system airstream were estimated. By implementing a waste wind energy recovery system at a greenhouse extraction system outlet, will be possible to improve the use of generated airstream, which in most cases is expelled to the outside.
M. Teitel and E. Wenger, “Air exchange and ventilation efficiencies of a monospan greenhouse with one inflow and one outflow through longitudinal side openings,” Biosystems Eng., vol. 119, pp. 98–107, 2014.
P. E. Bournet and T. Boulard, “Effect of ventilator configuration on the distributed climate of greenhouses: A review of experimental and CFD studies,” pp. 195–217, 2010.
L. Rong, B. Elhadidi, H. E. Khalifa, P. V. Nielsen, and G. Zhang, “Validation of CFD simulation for ammonia emissions from an aqueous solution,” Computers and Electronics in Agriculture, vol. 75, no. 2, pp. 261–271, 2011.
S. A. H. Jafari and B. Kosasih, “Flow analysis of shrouded small wind turbine with a simple frustum diffuser with computational fluid dynamics simulations,” Journal of Wind Engineering and Industrial Aerodynamics, vol. 125, pp. 102–110, 2014.
S. Jain and Y. Deshpande, “CFD Modeling of a Radiator Axial Fan for Air Flow Distribution,” in Proceedings of World Academy of Science, Engineering and Technology, vol. 6, no. 11. World Academy of Science, Engineering and Technology (WASET), 2012, pp. 1085–1090.
S. Dhanushkodi, V. H. Wilson, and K. Sudhakar, “Simulation of solar biomass hybrid dryer for drying cashew kernel,” Pelagia Research Library Advances in Applied Science Research, vol. 6, no. 8, pp. 148–154, 2015. [Online]. Available: www.pelagiaresearchlibrary.com
SolidWorks, “SolidWorks Flow Simulation,” Technical Reference, pp. 1–216, 2015.
Y. A. C¸ engel and J. M. Cimbala, “Fluid mechanics: fundamentals and applications,” Fluid Mechanics, vol. Third Edit, p. 956, 2014.
M. H. M. Noh, H. Rashid, A. H. A. Hamid, and M. F. Iskandar, “Comparison of numerical investigation on airfoil and flat louvers on the air duct intake,” in Procedia Eng., vol. 41, 2012, pp. 1761–1768.
H. Kumawat, “Modeling and Simulation of Axial Fan Using CFD,” World Academy of Science, Engineering and Technology International Journal of Mechanical, Aerospace, Industrial, Mechatronic and Manufacturing Engineering, vol. m, no. 11, pp. 1858–1862, 2014.
Z. Hu and W. Lu, “Numerical investigation on performance and aerodynamic noise of high speed axial flow fans,” in Proceedings of 2017 IEEE 2nd Advanced Information Technology, Electronic and Automation Control Conference, IAEAC 2017. IEEE, 2017, pp. 885–889.
M. I. Herrera-Prat, A. E. Garc´ıa de la Figal-Costales, H. de las Cuevas-Mil´an, and M. Martins-Teixeira, “The air speed in the fan and the flow in an agricultural sprayer,” Revista Ciencias T´ecnicas Agropecuarias, vol. 26, no. 1, pp. 50–56, 2017.
J. R. Tsay, L. S. Liang, and L. H. Lu, “Evaluation of an air-assisted boom spraying system under a no-canopy condition using CFD simulation,” Transactions of the American Society of Agricultural Engineers, vol. 47, no. 6, pp. 1887–1897, 2004.
B. R. Hughes and S. A. Ghani, “A numerical investigation into the effect of Windvent louvre external angle on passive stack ventilation performance,” Building and Env., vol. 45, no. 4, pp. 1025–1036, 2010.
E. Scotto di Perta, M. A. Agizza, G. Sorrentino, L. Boccia, and S. Pindozzi, “Study of aerodynamic performances of different wind tunnel configurations and air inlet velocities, using computational fluid dynamics (CFD),” Computers and Electronics in Agriculture, vol. 125,
pp. 137–148, 2016.
G. Venkatesh, M. V. Ramana, and P. S. Rao, “Optimization and CFD Analysis of Radiator Fan,” International Journal of Ethics in Engineering & Management Education, vol. 3, no. 10, 2016.
A. Sahili, B. Zogheib, and R. M. Barron, “3-D Modeling of Axial Fans,” Applied Mathematics, vol. 04, no. 04, pp. 632–651, 2013.
M. Varmaziar and S. Sarjami, “Investigation of Flow Pattern and Pressure Loss of A V94.2.5 Gas Turbine Air Intake System Using 3D Numerical Modeling,” Continuum Mechanics, Fluids, Heat, pp. 273–278, 2010. [Online]. Available: http://www.wseas.us/books/2010/Cambridge/CFH.pdf
E. Romantchik K., Eugenio. R´ıos U., “Invernadero con sistema de enfriamiento de pared h´umeda que integra un equipo de aprovechamiento de energ´ıa residual.” 2017.
“Artificial wind power generation method and device for industrial greenhouse,” 2013. [Online]. Available: https://www.google.com/patents/CN103388559A?cl=en
A. Patnaik and S. M. Ali, “Industrial exhaust fans as source of power [J],” International Journal of Electrical, Electronics and Data Communication, vol. 1, no. 9, pp. 38–42, 2013.
A. Fazlizan, W. T. Chong, S. Y. Yip, S. C. Poh, and W. K. Muzammil, “Double multiple stream tube analysis of non-uniform wind stream of exhaust air energy recovery turbine generator,” International Journal of Precision Engineering and Manufacturing - Green Technology, vol. 4,
no. 4, pp. 401–407, 2017.
S. Frikha, Z. Driss, and M. A. Hagui, “Computational study of the diffuser angle effect in the design of a waste heat recovery system for oil field cabins,” Energy, vol. 84, pp. 219–238, 2015. [Online]. Available: http://www.scopus.com/inward/record.url?eid=2-s2.0-
N. Korprasertsak and T. Leephakpreeda, “CFD-Based Power Analysis on Low Speed Vertical Axis Wind Turbines with Wind Boosters,” in Energy Procedia, vol. 79, 2015, pp. 963–968.
Y. Ohya, T. Karasudani, A. Sakurai, K. ichi Abe, and M. Inoue, “Development of a shrouded wind turbine with a flanged diffuser,” Journal of Wind Engineering and Industrial Aerodynamics, vol. 96, no. 5, pp. 524–539, 2008.
M. Kulak, M. Karczewski, K. Olasek, and K. J´o´zwik, “CFD analysis of Diffuser Augmented Wind Turbine model for wind tunnel investigation,” in IECON Proceedings (Industrial Electronics Conference). IEEE, 2016, pp. 5538–5543.
M. B. Bes¸ir S¸AH˙IN , Akın ˙ILHAN, “Investigation of Diffuser Augmented Wind Turbine Technologies,” vol. 32, pp. 147–154, march 2017.
T. S. Kannan, S. A. Mutasher, and Y. H. Lau, “Design and flow velocity simulation of diffuser augmented wind turbine using CFD,” Journal of Engineering Science and Technology, vol. 8, no. 4, pp. 372–384, 2013.
M. Shives and C. Crawford, “Developing an empirical model for ducted tidal turbine performance using numerical simulation results,” Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy, vol. 226, no. 1, pp. 112–125, 2012.
T. Matsushima, S. Takagi, and S. Muroyama, “Characteristics of a highly efficient propeller type small wind turbine with a diffuser,” Renewable Energy, vol. 31, no. 9, pp. 1343–1354, 2006.
G. J. Van Bussel, “The science of making more torque from wind: Diffuser experiments and theory revisited,” in Journal of Physics: Conference Series, vol. 75, no. 1, 2007.
S. Tabatabaeikia, N. N. B. N. Ghazali, W. T. Chong, B. Shahizare, N. Izadyar, A. Esmaeilzadeh, and A. Fazlizan, “Computational and experimental optimization of the exhaust air energy recovery wind turbine generator,” Energy Conversion and Management, vol. 126, pp. 862–874, 2016.
W. T. Chong, W. P. Hew, S. Y. Yip, A. Fazlizan, S. C. Poh, C. J. Tan, and H. C. Ong, “The experimental study on the wind turbine’s guidevanes and diffuser of an exhaust air energy recovery system integrated with the cooling tower,” Energy Conversion and Management, vol. 87, pp. 145–155, 2014.
E. Romantchik, D. Terrazas Ahumada, A. M. Santos Hern´andez, and I. Martinez Jer´onimo, “Mejoramiento de funcionamiento de los extractores en invernaderos recuperando la energ´ıa de salida de aire (Improvement of operation of extractors in greenhouses recovering air output energy),” Ciencias B´asicas, Ingenier´ıa y Tecnolog´ıa (CiBIyT), no. 42, pp. 165–170, 2019.
E. Romantchik Kriuchkova, A. M. Santos Hern´andez, E. R´ıos Urb´an, and D. Terrazas Ahumada, “Air flow analysis of greenhouse extractors using CFD simulation,” Ingenier´ıa Investigaci´on y Tecnolog´ıa, vol. 20, no. 1, pp. 1–14, jan 2019.
K. Molina, D. Ortega, M. Mart´ınez, W. Pinto-Hern´andez, and O. A. Gonz´alez-Estrada, “Modelado de la interacci´on fluido estructura (FSI) para el dise˜no de una turbina e´olica HAWT,” Revista UIS Ingenier´ıas, vol. 17, no. 2, pp. 269–282, 2017.
J. F. Manwell, J. G. McGowan, and A. L. Rogers, Wind Energy Explained: Theory, Design and Application, 2010.
X. Tang, X. Huang, R. Peng, and X. Liu, “A direct approach of design optimization for small horizontal axis wind turbine blades,” in Procedia CIRP, 2015.
A. Ozkan and T. G¨uzelyurt, “Aerodynamic Design of Turbine Blades Using Full Dynamic Analysis of a Wind Turbine.”
C. W. Tong, P. S. Chew, A. F. Abdullah, O. C. Sean, and T. C. Ching, “Exhaust air and wind energy recovery system for clean energy generation,” in Proceedings of the International Conference on Environment and Industrial Innovation, Kuala Lumpur, Malaysia, 2011, pp. 4–5.
A. Betz, “Das Maximum der theoretisch m¨oglichen Ausn¨utzung des Windes durch Windmotoren,” Zeitschrift f¨ur das gesamte Turbinenwesen, vol. 26, pp. 307–309, 1920.
J. Young, F.-B. Tian, and J. C. S. Lai, “Betz Analysis of a Single Flapping Foil Power Generator,” in First International Symposium on Flutter and its Application, 2016, pp. 485–494.
[Online]. Available: https://repository.exst.jaxa.jp/dspace/bitstream/a-
Vostermans Companies, “Multifan 130,” Tech. Rep., 2012. [Online]. Available: http://www.vostermans.com
G. V. Shankaran and M. B. Dogruoz, “Validation of an advanced fan model with multiple reference frame approach,” in 2010 12th IEEE Intersociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITherm 2010, 2010.
S. Narasimhan, G. Shankaran, and S. Basak, “Modeling of fan failures in networking enclosures,” in Annual IEEE Semiconductor Thermal Measurement and Management Symposium, 2012.
J. Thumbe and V. Jyothish, “ANALYSIS OF SIX BLADED AXIAL FAN USING ANSYS,” 2017.