Theoretical performance simulation of a high pressure agro-forestry swirl nozzle
Keywords:
swirl-nozzle, simulation, agro-forestry, performance coefficient, spray cone angle, swirl chamber diameterAbstract
Equations of dynamic systems in droplet distribution at high pressure and boundary value flows in the swirl chamber of a swirl nozzle were used in conjunction with momentum equations of forces on moving curved vanes to develop mathematical models. A computer program in C++ language was developed and used to simulate the effect of some flow and geometric parameters, including flow rate, pressure and swirl chamber diameter, on the spray performance of a high pressure agro-forestry swirl nozzle. Each of the three performance parameters of axial flow rate, spray cone angle and output discharge (or performance) coefficient were studied as a function of any two combinations of the nozzle supply pressure, exit orifice diameter and swirl chamber diameter. The study established that the spray cone angle of the discharge flow pattern varied from the minimum value of 40References
[1] Taiwo A, Oje K. Theoretical study of post exit behaviour of droplets from a high pressure agro-forestry swirl nozzle. Journal of Agricultural Engineering and Technology, 2009; 17(1): 15-27.
[2] CIGR. Handbook of Agricultural Engineering. Plant Production Engineering, 1999; Vol. I-II.
[3] Taiwo A, Oje K. Simulation studies of material selection effect on the angular acceleration and rotative speed of the swirl element of an agro-forestry swirl nozzle. In: Proceedings of the 11th International Congress on Mechanization and Energy in Agriculture. 21-23 September, 2011. Istanbul. Turkey. pp. 136-141.
[4] Zhu H, Reichard D L, Ozkan H E, Brazee R D, Fox R D. A mathematical model for predicting the wear rate of nozzles with elliptical orifices. Transactions of the ASAE, 1995; 38(5): 1297-1303.
[5] Bouse L F. Effect of nozzle type and operation on spray droplet size. Transactions of the ASAE, 1993; 37(5): 1389-1400.
[6] Koo Y M, Kuhlman N A. Theoretical and spray performance of swirl-type nozzles. Transactions of the ASAE, 1993; 36(3): 671-678.
[7] Taiwo A, Oje K. Development and testing of a swirl chamber nozzle. Journal of Agricultural Engineering and Technology, 2008; 16(1): 11-23.
[8] Bernacki H, Haman J, Kanafojski C Z. Agricultural Machines, Theory and Construction. U.S. Dept. of Commerce. N.T.I.S. Virginia. 1972; pp. 350-380.
[9] Schwab G O, Fangmeir D D, Elliot W J, Frevert R K. Soil and water conservation engineering. Fourth Ed. New York: John Wiley & Sons Inc. 1993; pp. 190-192.
[10] Ogboja O. Fluid Mechanics. UNESCO. Nairobi. 2005; pp. 88-91. Kenya.
[11] Klenin N I, Popov I F, Sakun V A. Agricultural Machines. Amerind Publishing Co. Ltd. New Delhi. 1995.
[2] CIGR. Handbook of Agricultural Engineering. Plant Production Engineering, 1999; Vol. I-II.
[3] Taiwo A, Oje K. Simulation studies of material selection effect on the angular acceleration and rotative speed of the swirl element of an agro-forestry swirl nozzle. In: Proceedings of the 11th International Congress on Mechanization and Energy in Agriculture. 21-23 September, 2011. Istanbul. Turkey. pp. 136-141.
[4] Zhu H, Reichard D L, Ozkan H E, Brazee R D, Fox R D. A mathematical model for predicting the wear rate of nozzles with elliptical orifices. Transactions of the ASAE, 1995; 38(5): 1297-1303.
[5] Bouse L F. Effect of nozzle type and operation on spray droplet size. Transactions of the ASAE, 1993; 37(5): 1389-1400.
[6] Koo Y M, Kuhlman N A. Theoretical and spray performance of swirl-type nozzles. Transactions of the ASAE, 1993; 36(3): 671-678.
[7] Taiwo A, Oje K. Development and testing of a swirl chamber nozzle. Journal of Agricultural Engineering and Technology, 2008; 16(1): 11-23.
[8] Bernacki H, Haman J, Kanafojski C Z. Agricultural Machines, Theory and Construction. U.S. Dept. of Commerce. N.T.I.S. Virginia. 1972; pp. 350-380.
[9] Schwab G O, Fangmeir D D, Elliot W J, Frevert R K. Soil and water conservation engineering. Fourth Ed. New York: John Wiley & Sons Inc. 1993; pp. 190-192.
[10] Ogboja O. Fluid Mechanics. UNESCO. Nairobi. 2005; pp. 88-91. Kenya.
[11] Klenin N I, Popov I F, Sakun V A. Agricultural Machines. Amerind Publishing Co. Ltd. New Delhi. 1995.
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Published
2012-12-11
How to Cite
Taiwo, A., & Oje, K. (2012). Theoretical performance simulation of a high pressure agro-forestry swirl nozzle. International Journal of Agricultural and Biological Engineering, 5(4), 31–38. Retrieved from https://ijabe.migration.pkpps03.publicknowledgeproject.org/index.php/ijabe/article/view/586
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Natural Resources and Environmental Systems
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