Design and distribution of air nozzles in the biomass boiler assembly

• Autorzy: Ronewicz K. , Turzyński T. , Kardaś D.
• Języki publikacji: EN

Abstrakty

EN

Due to energy crisis as well as increasing pollution of the enviroment, renewable energy sources usage increases all over the world. These facts encouraged authors to start research over developing a uniform biomass boiler calculation model. Paper presents the design of biomass boiler assembly created for the organic Rankine cycle unit since these systems could achieve strong position in energy industry. To achieve optimal performance of boiler assembly, two additional devices have been designed: the economizer and air preheater. Such installation allows to reach the assembly efficiency of 82%. The research over the air nozzles placement in the combustion chamber in order to ensure the best firebox efficiency is also presented. Modeling is based on computational fluid dynamics simulations of pyrolysis on the moving grate. Released gases are being transported to the combustion chamber, mixed with air from the nozzles and combusted. Furthermore, the model assumes different distribution and composition of gases across the moving grate.

Słowa kluczowe

EN

biomass; boiler assembly; CFD; combustion; design; firebox

• Wydawca: Wydawnictwo Instytutu Maszyn Przepływowych PAN
• Czasopismo: Transactions of the Institute of Fluid-Flow Machinery
• Rocznik: 2013
• Tom: nr 125
• Strony: 13--28
• Opis fizyczny: Bibliogr. 6 poz., rys., tab.

Twórcy

autor

Ronewicz K.

• The Szewalski Institute of the Fluid-Flow Machinery Polish Academy of Sciences, Fiszera 14, 80-231 Gdańsk, Poland

autor

Turzyński T.

• The Szewalski Institute of the Fluid-Flow Machinery Polish Academy of Sciences, Fiszera 14, 80-231 Gdańsk, Poland

autor

Kardaś D.

• The Szewalski Institute of the Fluid-Flow Machinery Polish Academy of Sciences, Fiszera 14, 80-231 Gdańsk, Poland

Bibliografia

• [1] Rokicki H.: Steam Generators, Gdańsk University of Technology, Gdańsk 1984 (in Polish).
• [2] Kruczek S.: Boilers. Design and Calculations. Wrocław University of Technology, Wrocław 2001 in Polish.
• [3] Wiśniewski S., Wiśniewski T.S.: Heat Transfer. WNT, Warszawa 2000 (In Polish).
• [4] Ronewicz K., Turzyński T., Kardaś D., Kulikowicz W., Polesek- Karczewska S., Wardach-Święcicka I., Lampart P.: Technical documentation of a thermal oil-biomass boiler for 100 kW ORC. Report IF-FM 49/2013, Gdańsk 2013 (in Polish).
• [5] Ronewicz K., Turzyński T., Kardaś D.,Wardach-Święcicka I., KulikowiczW.: Assumptions for the design of the grate and a system for the boiler supplied with thermal oil. Rep. IF-FM 623/2012, Gdańsk 2012 (in Polish).
• [6] http://www.ansys.com/Products/Simulation+Technology/Fluid+Dynamics/ Fluid+Dynamics+Products/ANSYS+Fluent