Testing of the BTW-UV control systems scale models with low and middle pressure mercury lamps

Authors: V.P. Fokanov, M.V. Fokanov, A.V. Shallar, M.V. Petrov, O.V. Gavrilova

Abstract

The article presents the results of the tests carried out by the RMRS-certified NPO ENT test laboratory on the decontamination of the two types of phytoplankton by the ballast water ultraviolet radiation (BWT-UV) control system.
For the comparison of the characteristics, including efficiency, the tests of two types of BWT-UV-250 scale models (water flow of 250 m3/h) with the application of low pressure (LP) mercury gas-discharge lamps and a middle pressure (MP) lamp have been carried out. The experiment showed that the efficiency of decontamination of the two test objects by the scale models (water flow of 10 m3/h) with five LP lamps 127 Weach and with one MP lamp 3.2 kW is identical.
Mathematical modeling has been executed and calculations of decontamination efficiency have been carried out using the method of computing hydrodynamics. The agreement of both experiments results and calculations justifies designing and the ship tests of the projected BWT-UV-250.

Keywords: ships' ballast water, scale model, low and middle pressure mercury lamps, phytoplankton, computer model, method of computing hydrodynamics, test laboratory


References

1. Guidelines on Application of the Requirements of International Convention for the Control and Management of Ships Ballast Water and Sediments. Russian maritime register of shipping, 2004. (In Russian)
2. Ke, Q.S., Bolton, J.R. 2011. Ultraviolet Lamp Efficiencies: Modern Derivation of the Keitz Formula and Other Efficiency Issues, 2-nd North American Conference on Ozone, Ultraviolet and Advanced Oxidation Technologies, Session 12, 624-627.

About authors

Valeriy Fokanov - PhD, International Academy of Ecological and Human and Nature Safety Sciences, LLC "NPO ENT", Vasilievsky Island, 24th Line, bl. 3-7, p.b.43, 199106, St. Petersburg, Russia

Michail Fokanov - International Academy of Ecological and Human and Nature Safety Sciences, LLC "NPO ENT", Vasilievsky Island, 24th Line, bl. 3-7, p.b.43, 199106, St. Petersburg, Russia

Alexander Shallar - PhD, International Academy of Ecological and Human and Nature Safety Sciences, LLC "NPO ENT", Vasilievsky Island, 24th Line, bl. 3-7, p.b.43, 199106, St. Petersburg, Russia


Michail Petrov - JSC "RMRS Classification and certification of ships", Güzelyali Mah. Sahilyolu Cad. Yakut Sok. No:16 Pendik Istanbul

Olga Gavrilova - PhD, associate professor, St. Petersburg State University, 11  Lieutenant Shmidt Emb., 199034, St. Petersburg

Issue: 44/45 (2016)



For citation: V.P. Fokanov, M.V. Fokanov, A.V. Shallar, M.V. Petrov, O.V. Gavrilova. Testing of the BTW-UV control systems scale models with low and middle pressure mercury lamps. Research Bulletin by Russian Maritime Register of Shipping. 2016, No. 44/45, pp. 14-19.

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UDC:  579.695
Pages:  14-19