The Research Of The Influence Of The Cylidrical Heating Surface Location On The Local Heat Transfer Coefficients In Fluidised Bed Of The Marine Fluidised Bed Boiler

• Autorzy: Zeńczak W.
• Języki publikacji: EN

Abstrakty

EN

The article presents the results of the experimental research of the heating cylindrical surface location influence on the local heat transfer coefficients in the bubbling fluidised bed in the physical model of the marine fluidised bed boiler. A particular feature of this boiler model is positioning it in a kind of cradle simulating ship’s motion on sinusoidal type regular wave. The heating surface is located in the traditional ship’s centre line or in her midship section. The testing has been conducted in the conditions where the fluidising column remained motionless while being at the same time deflected from the vertical by a constant angle and in the conditions of continuous oscillating movement. In the effect there has been obtained the distribution of the heat transfer local coefficient values in the fluidised bed in three points located at the diameter of the column at a certain distance from the separating grid with various locations of the heating surface. The research has indicated that column oscillations contribute to the increase of the bubbling fluidised bed local heat transfer coefficients, at the parallel positioning towards ship’s centre line. The further results of research may provide the grounds to formulate guidelines for designing the shipboard fluidised bed boilers.

Słowa kluczowe

EN

heat exchange; fluidised bed boiler; design; ship

• Wydawca: Faculty of Ocean Engineering and Ship Technology, Gdańsk University of Technology
• Czasopismo: Journal of Polish CIMAC
• Rocznik: 2009
• Tom: Vol. 4, no 1
• Strony: 161--167
• Opis fizyczny: Bibliogr. 5 poz., rys., fot.

Twórcy

autor

Zeńczak W.

• West Pomeranian University of Technology in Szczecin 41 Piastów Ave, PL 71-065 Szczecin, Poland tel.: [phone], fax: [phone],

Bibliografia

• [1] Adamkiewicz, A., Zeńczak, W., Model Testing of Fluidised Bed Boiler for Sea-Going Ships, Marine Technology Transactions, Vol.17 , Gdańsk 2006, pp.23-35.
• [2] Adamkiewicz, A., Zeńczak, W., Koncepcja badań modelowych kotłów fluidalnych w aspekcie możliwości ich zastosowania na statkach morskich, Systems, 2006, Vol.11, Special Issue 1/1 ss. 112-119, Wrocław 2006.
• [3] Dudziak, J., Teoria okrętu, Wydawnictwo Morskie, Gdańsk 1988.
• [4] Ikeda, S., Ito, S., Someya, T., An Experimental Marine Fluidised –Bed Boiler Plant, Marine Engineers Rev, 1983,10, pp 15-17.
• [5] Zeńczak, W., Investigation of Fluidised Bed of the Physical Model of the Marine Fluidised Bed Boiler, Journal of POLISH CIMAC, Vol.3, No.1,pp 183-190, Gdańsk ,2008.