Experimental investigation of jet pump performance used for high flow amplification in nuclear applications
2
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
The jet pump can be used in a test device of a nuclear reactor for high flow amplification as it reduces inlet flow requirement and thereby size of the process components. In the present work, a miniature jet pump was designed to meet high flow amplification greater than 3. Subsequently, experiments were carried out using a test setup for design validation and performance evaluation of the jet pump for different parameters. It was observed that a minimum pressure of 0.6 bar (g) was required for the secondary fluid inside the jet pump to ensure cavitation free performance at high amplification. Spacing between the nozzle tip and the mixing chamber entry point had significant effect on the performance of the jet pump. Variation in primary flow, temperature and area ratio also affected the performance. It was observed that at high flow amplification, the analytical solution differed significantly from experimental results due to very large velocities encountered in the miniature size jet pump
Abstract
The jet pump can be used in a test device of a nuclear reactor for high flow amplification as it reduces inlet flow requirement and thereby size of the process components. In the present work, a miniature jet pump was designed to meet high flow amplification greater than 3. Subsequently, experiments were carried out using a test setup for design validation and performance evaluation of the jet pump for different parameters. It was observed that a minimum pressure of 0.6 bar (g) was required for the secondary fluid inside the jet pump to ensure cavitation free performance at high amplification. Spacing between the nozzle tip and the mixing chamber entry point had significant effect on the performance of the jet pump. Variation in primary flow, temperature and area ratio also affected the performance. It was observed that at high flow amplification, the analytical solution differed significantly from experimental results due to very large velocities encountered in the miniature size jet pump
참고문헌 (16)
- Ejectors and Jet Pumps-Design & Performance for Incompressible Liquid Flow, "Eng Sci, Data Unit", ESDU International Ltd, ~, pp.Data item:85032 (1985)
- I. J. Karassik, "Pump Handbook", pp.4.1~4.49 (2001), Mcgraw-Hill
- A.A. Kudrika, "Pumps for Nuclear power plant, Fluid machinery and Nuclear Power plant Group of the Institution of Mechanical Engineers", pp.75~82 (1974), University of Bath
- NASA Technical Note, Noncavitating & Cavitating Performance of the Two Low Area Ratio Water Jet Pumps with Throat Length of 5.66 Diameter, "N.L. Sanger", NASA, ~, pp.TN D-4759 (1968)
- R. Yapici, "Optimization of Jet pump using numerical simulation", J. Power and Energy, 227(4), pp.438~449 (2013)
- K. Aldas, "Investigation of Effects of scale and surface roughness on efficiency of water jet pump using CFD", Eng. Appl. Comput. Fluid. Mech, (1), pp.14~25 (2014)
- M. Marini, "Low area ratio Aircraft fuel jet pump performances with and without cavitation", Tran. ASME, 114, pp.626~631 (1992)
- V.K. Kotak, "Theoretical and experimental study on a miniature jet pump with low area ratio", 8th ICTACEM Conference (2021), IIT Kharagpur
- R. G. Cunningham, "Jet pump cavitation", J. Basic Engg, 92(3), pp.483~492 (1970)
- N. H. G. Mueller, "Water jet pump", J. Hyd. Div., ASCE, 90 (1964)
- A.H. Hammoud, "Effect of design and operational parameters on jet pump performance", Proceedings of the 4th WSEAS International Conference on Fluid Mechanics and Aerodynamics, pp.245~252 (2006)
- I.A. El-Sawaf, "Study of the Different Parameters that Influence on the Performance of Water Jet Pump", Fifteenth International Water Technology Conference (2011)
- R. G. Cunningham, "Jet pump theory and performance with fluids of high viscosity", Trans. ASME, 79, pp.1807~1819 (1957)
- Fredik Liknes, "Jet pump", M. Sc, Dept. Of Petroleum Engg. and Applied Geophysics, pp.2013
- L. F. Moody, "An approximate formula for pipe friction factor", Trans ASME, 69, pp.1005~1006 (1947)
- I. E. Idel'Chik, "Handbook of Hydraulic Resistance, Coefficient of Local Resistance and of Friction" (1960)