Performance experiment and numerical prediction on the optimization design of the micro-sized water turbine for the hose reel irrigator
Keywords:
micro-sized water turbine, hose reel irrigator, optimization design, experimental study, numerical analysisAbstract
In order to significantly improve the efficiency of driving water turbine used in hose reel irrigator, a new water turbine structure was proposed by the method of performance test and numerical calculation. The internal flow characteristics of original water turbine were analyzed, and it was found that unreasonable design of main flow passage components such as inlet, outlet and runner could not effectively translated pressure energy of upper stream into impact kinetic energy of blade, and gave rise to low energy conversion efficiency of water turbine. The inadequate internal flow and uneven pressure distribution were also not conducive to energy conversion efficiency. Then a new structure of water turbine structure was presented, in which the inlet has a tangential nozzle jet and the outlet is in axial direction. The computational analysis showed that the nozzle jet at the inlet of the new water turbine runner, which makes jet flow mainly concentrate in the impacted blade passage, can reduce the loss of flow kinetic energy. The axial outflow increases the distance of inflow in the runner, which is more conducive to the runner blades work. Performance experiments on both original and new water turbines showed that the highest efficiency of the new turbine is almost 20 percentages higher than that of the original turbine, and the new turbine is nearly triple output power over the original turbine. The internal flow characteristic analysis and the performance experiment were conducted to assess the feasibility of the replacement of the original water turbine by the new water turbine. Keywords: micro-sized water turbine, hose reel irrigator, optimization design, experimental study, numerical analysis DOI: 10.25165/j.ijabe.20181105.2876 Citation: Tang L D, Yuan S Q, Tang Y, Yan H F. Performance experiment and numerical prediction on the optimization design of the micro-sized water turbine for the hose reel irrigator. Int J Agric & Biol Eng, 2018; 11(5): 108–115.References
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[2] Cavero J, Medina E T, Puig M, Martínezcob A. Sprinkler irrigation changes maize canopy microclimate and crop water status, transpiration, and temperature. Agronomy Journal, 2009; 101(4): 854–864.
[3] Leteya J, Hoffmanb G J, Hopmansc J W, Grattan S R, Suarez D, Corwin D L, et al. Evaluation of soil salinity leaching requirement guidelines. Agricultural Water Management, 2011; 98(4): 502–506.
[4] Liu S H, Kang Y H, Wan S Q, Wang Z C, Liang Z W, Sun X J. Water and salt regulation and its effects on Leymus chinensis growth under drip irrigation in saline-sodic soils of the Songnen Plain. Agricultural Water Management, 2011; 98(9): 1469–1476.
[5] Yuan S Q, Li H, Wang X K. Status, problems, trends and suggestions for water-saving irrigation equipment in China. Journal of Drainage and Irrigation Machinery Engineering, 2015; 33(1): 78–92.
[6] Lan C Y, Yi X T, Xue G N, Hou Y S. Chinese Academy of Agriculture Mechanization Sciences. Drainage and Irrigation Machinery, 2005; 23(1): 1–6.
[7] Hao J D. The development and status of the hose reel irrigator in overseas market. Water Saving Irrigation, 1979; 3: 64–75.
[8] Xu Y F, Francis T E S T A. The characteristic analysis of the hose reel irrigator. Water Saving Irrigation, 1996; 3: 39–45.
[9] Tang Y, Zhu X Y, Mei X X, Gu Z. Performance test of water turbine of JP50 reel sprinkler. China Rural Water and Hydropower, 2014; 2: 26–29.
[10] Yuan S Q, Niu G P, Tang Y, Tang L D, Zhu X Y. Experiment and numerical estimation of performance of hydraulic turbine of JP50 reel sprinkle. Journal of Drainage and Irrigation Machinery Engineering, 2014; 37(7): 553–557.
[11] Niu G P. Hydraulic performance test and numerical simulation of water turbine of hose reel sprinkle. Jiangsu University, 2015. (in Chinese)
[12] Chen D X, Zhang W J, Yang L. Operation characteristics and type selection of cooling tower fan driven turbine. Water Power, 2010; 36(12): 54–56.
[13] Zhang L J, Wang L, Ren Y, Chen D X. Analysis on hydraulic characteristics of micro Francis hydro-turbine with low specific speed. Water Resources and Hydropower Engineering, 2013; 44(1): 128–130.
[14] Zhang L J, Chen D X, Ren Y, Li Y P. Hydraulic loss analysis of the micro Francis turbine of cooling towers. Journal of North China Institute of Water Conservancy and Hydroelectric Power, 2012; 33(1): 1–3. (in Chinese)
[15] Zhu F, Zheng Y, Fan X J, Yang C X, Li J. Design and numerical simulation of small Francis turbine used in cooling tower. Water Resources and Power, 2013; 31(7): 165–168.
[16] Zou K N, Li L, Xia K G. Hydraulic design and numerical simulation of super low specific speed Francis turbine runner. Energy Engineering, 2012; 4: 6–9.
[17] Jain S V, Patel R N. Investigations on pump running in turbine mode: A review of the state-of-the-art. Renewable and Sustainable Energy Reviews, 2014; 30: 841–868.
[18] Derakhshan S, Nourbakhsh A. Theoretical, numerical and experimental investigation of centrifugal pumps in reverse operation. Experimental Thermal and Fluid Science, 2008; 32: 1620–1627.
[19] Derakhshan S, Nourbakhsh A. Experimental study of characteristic curves of centrifugal pumps working as turbines in different specific speeds. Experimental Thermal and Fluid Science, 2008; 32:800–807.
[20] Shinhama H, Fukutomi J, Nakase Y, Chin Y, Kuwauchi T, Miyauchi S. Study on reverse running pump turbine. Transactions of the Japan Society of Mechanical Engineers (JSME), 1999; 65(638): 3399–3405. (in Japanese)
[21] González J, Oro J M F, Argüelles-Díaz K M, Santolaria C. Flow analysis for a double suction centrifugal machine in the pump and turbine operation modes. International Journal for Numerical Methods in Fluids, 2009; 61: 220–236.
[22] Fernández J, Barrio R, Blanco E, Parrondo J, Marcos A. Experimental and numerical investigation of a centrifugal pump working as a turbine. Proceedings of the ASME 2009 Fluids Engineering Division Summer Meeting FEDSM 2009, Vail, Colorado, USA, August 2-6, 2009; pp.1–9.
[23] Singh P, Nestmann F. Internal hydraulic analysis of impeller rounding in centrifugal pumps as turbines. Experimental Thermal and Fluid Science, 2011; 35(1): 121–134.
[24] Singh P. Optimization of the internal hydraulic and of system design in pumps as turbines with field implementation and evaluation. University of Karlsruhe, Karlsruhe, 2005.
[25] Derakhshan S, Mohammadi B. Incomplete sensitivities for 3D radial turbomachinery blade optimization. Computers & Fluids, 2008; 37: 1354–1363.
[26] Derakhshan S, Mohammadi B, Nourbakhsh A. The comparison of incomplete sensitivities and Genetic algorithms applications in 3D radial turbomachinery blade optimization. Computer & Fluids, 2010; 39: 2022–2029.
[27] Zhang M, Tsukamoto H. Unsteady hydrodynamic forces due to rotor-stator interaction on a diffuser pump with identical number of vanes on the impeller and diffuser. ASME Fluids Engineering, 2005; pp.743–751.
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Published
2018-09-29
How to Cite
Tang, L., Yuan, S., Tang, Y., & Yan, H. (2018). Performance experiment and numerical prediction on the optimization design of the micro-sized water turbine for the hose reel irrigator. International Journal of Agricultural and Biological Engineering, 11(5), 108–115. Retrieved from https://ijabe.migration.pkpps03.publicknowledgeproject.org/index.php/ijabe/article/view/2876
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Power and Machinery Systems
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