Abstract
During the last few years, some investigators reported interesting results regarding neutron emissions from ultra-sonic cavitation in liquids and solids. In the present paper, the described experiments were conducted in order to evaluate neutron emissions from liquids subjected to hydrodynamic cavitation by an hydraulic circuit prototype. In particular, different aqueous iron salt solutions were tested in order to correlate neutron emissions and evolution of chemical element concentrations after different operating hours. The experiments were conducted using an hydraulic circuit fine-tuned by the authors. The pilot plant, which also includes the power supply and the electronic control of the recirculation pump, was realized entirely by plastic material (with the exception of the centrifugal pump and the hydraulic cavitator). The pump will be equipped with a system of six stages and with a maximum flow rate of 6 m3/h. The maximum working pressure is equal to 10 bar. The evidence obtained during the tests returned an appreciable neutron emission, about 30 % greater than the background level. A significant decrement in Fe concentration was detected at the end of the test, whereas a considerable amount of aluminum—previously absent—was found on the internal walls of the pipe.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Yasui, K., Tuziuti, T., Sivakumar, M., Iida, Y.: Theoretical study of single-bubble sonochemistry. J. Chem. Phys. 122(224706), 1–12 (2005)
Joshi, J.B., Pandit, A.B.: Hydrolysis of fatty oils: effect of cavitation. Chem. Eng. Sci. 48, 3440–3442 (1993)
Chivate, M.M., Pandit, A.B.: Effect of sonic and hydrodynamic cavitation on aqueous polymeric solutions. Indian Chem. Eng. 35, 52–57 (1993)
Save, S.S., Joshi, J.B., Pandit, A.B.: Microbial cell disruption—role of cavitation. Chem. Eng. J. 55(3), B67–B72 (1994)
Save, S.S., Joshi, J.B., Pandit, A.B.: Microbial cell disruption in hydrodynamic cavitation. Chem. Eng. Res. Des. 75(Part C), 41–49 (1997)
Balasundaram, B., Pandit, A.B.: Selective release of invertase by hydrodynamic cavitation. Biochem. Eng. J. 8, 251–256 (2001)
Balasundaram, B., Pandit, A.B.: Significance of location of enzymes on their release during microbial cell disruption. Biotechnol. Bioeng. 75, 607–614 (2001)
Kalumuck, K.M., Chahine, G.L.: The use of cavitating jets to oxidize organic compounds in water. J. Fluids Eng. 122, 464–470 (2000)
Sivakumar, M., Pandit, A.B.: Wastewater treatment: a novel energy efficient hydrodynamic cavitational technique. Ultrason. Sonochem. 9, 123–131 (2002)
Ambulgekar, G.V., Samant, S.D., Pandit, A.B.: Oxidation of alkylarenes using aqueous potassium permanganate under cavitation: comparison of acoustic and hydrodynamic techniques. Ultrason. Sonochem. 11, 191–196 (2004)
Ambulgekar, G.V., Samant, S.D., Pandit, A.B.: Oxidation of alkylarenes using aqueous potassium permanganate under cavitation: comparison of acoustic and hydrodynamic techniques. Ultrason. Sonochem. 12, 85–90 (2005)
Botha, C.J., Buckley, C.A.: Disinfection of potable water: the role of hydrodynamic cavitation. Water Supply 13(2), 219–229 (1995). IWSA International Specialized Conference on Disinfection of Potable Water, 1994
Jyoti, K.K., Pandit, A.B.: Hybrid cavitation methods for water disinfection: simultaneous use of chemicals with cavitation. Ultrason. Sonochem. 10, 255–264 (2003)
Jyoti, K.K., Pandit, A.B.: Effect of cavitation on chemical disinfection efficiency. Water Res. 38, 2249–2258 (2004)
Jyoti, K.K., Pandit, A.B.: Ozone and cavitation for water disinfection. Biochem. Eng. J. 18, 9–19 (2004)
Moser, W.R., Marshik, B.J., Kingsley, J., Lemberger, M., Willette, R., Chan, A., Sunstrom, J.E., Boye, A.: The synthesis and characterization of solid-state materials produced by high shear-hydrodynamic cavitation. J. Mater. Res. 10, 2322–2335 (1995)
Find, J., Emerson, S.C., Krausz, I.M., Moser, W.R.: Hydrodynamic cavitation as a tool to control macro-, micro-, and nano-properties of inorganic materials. J. Mater. Res. 16, 3503–3513 (2001)
Shah, Y.T., Pandit, A.B., Moholkar, V.S.: Cavitation reaction engineering. Kluwer Academic/Plenum Publishers, New York (1999)
Gogate, P.R., Pandit, A.B.: Hydrodynamic cavitation reactors: a state of the art review. Rev. Chem. Eng. 17, 1–85 (2001)
Carpinteri, A., Cardone, F., Lacidogna, G.: Piezonuclear neutrons from brittle fracture: Early results of mechanical compression tests. Strain 45, 332–339. (2009). Atti dell’Accademia delle Scienze di Torino. 33, 27–42, (2009)
Cardone, F., Carpinteri, A., Lacidogna, G.: Piezonuclear neutrons from fracturing of inert solids. Phys. Lett. A 373, 4158–4163 (2009)
Carpinteri, A., Cardone, F., Lacidogna, G.: Energy emissions from failure phenomena: mechanical, electromagnetic, nuclear. Exp. Mech. 50, 1235–1243 (2010)
Carpinteri, A., Lacidogna, G., Manuello, A., Borla, O.: Piezonuclear fission reactions: evidences from microchemical analysis, neutron emission, and geological transformation. Rock Mech. Rock. Eng. 45, 445–459 (2012)
Carpinteri, A., Lacidogna, G., Manuello, A., Borla, O.: Piezonuclear fission reactions from earthquakes and brittle rocks failure: evidence of neutron emission and nonradioactive product elements. Exp. Mech. 53, 345–365 (2013)
Acknowledgements
The authors gratefully acknowledge the economical support of Metalwork srl (Brescia-Italy). Special thanks are due to Prof. C. Baiocchi and Dr. G. Mariella for the solution preparations and the ICP-MS analysed before and during the experimental campaign. Mr. F. Alasia is gratefully acknowledged for his support in the hydraulic circuit construction.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2016 The Society for Experimental Mechanics, Inc.
About this paper
Cite this paper
Manuello, A., Malvano, R., Borla, O., Palumbo, A., Carpinteri, A. (2016). Neutron Emissions from Hydrodynamic Cavitation. In: Beese, A., Zehnder, A., Xia, S. (eds) Fracture, Fatigue, Failure and Damage Evolution, Volume 8. Conference Proceedings of the Society for Experimental Mechanics Series. Springer, Cham. https://doi.org/10.1007/978-3-319-21611-9_22
Download citation
DOI: https://doi.org/10.1007/978-3-319-21611-9_22
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-21610-2
Online ISBN: 978-3-319-21611-9
eBook Packages: EngineeringEngineering (R0)