Numerical modelling of heat loss through the cover in the anaerobic digester

• Autorzy: Rynkowski P.
• Języki publikacji: EN

Abstrakty

EN

Anaerobic digestion is the biological degradation of biomass in oxygen-free environments. The main product of this process is biogas, rich in CH4 and CO2. Understanding the heat loss characteristic of biogas digester (BD) is important to put these technologies into application. Biogas digester may obtain assumed gas production in cold environmental when the optimal fermentation temperature is maintained. It requires heating system and insulation technologies. Here 2-D axisymmetric steady heat transfer model coupled with surrounding soil was built to calculate heat loss of HBD for a real biogas plant located in north-eastern Poland. A sample to determine the effect of air flow between the membranes of the BD cover on the heat losses has been presented.

Słowa kluczowe

EN

anaerobic digestion; heat loss

PL

fermentacja beztlenowa; utrata ciepła

• Wydawca: Fundacja Ekonomistów Środowiska i Zasobów Naturalnych
• Czasopismo: Ekonomia i Środowisko
• Rocznik: 2018
• Tom: nr 2
• Strony: 18--29
• Opis fizyczny: Bibliogr. 8 poz., il., rys., tab., wykr.

Twórcy

autor

Rynkowski P.

• Bialystok University of Technology Faculty of Civil and Environmental Engineering Wiejska street 45E, Bialystok, 15-351, Poland

Bibliografia

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• Usmani J.A., Tiwari G.N., Chandra A. (1996), Performance characteristic of a greenhousee integrated biogas system, “Energy Conversion and Management” No. 9, p. 1423-1433
• Gebremedhin K. G. et al. (2005), Heat transfer model for plug-flow anaerobic digesters, “Transactions of the ASAE” No. 48, p. 777-785
• Perrigault T. et al. (2012), Towards thermal design optimization of tubular digester in cold climates: A heat transfer model, “Bioresource Technology” No. 124, p. 259-268
• Wu B., Bibeau E.L. (2006), Development of 3-D anaerobic digester heat transfer model for cold weather applications, “Transactions of the ASAE” No. 49(3), p. 749-757
• Yiannopoulos A.C., Manariotis I.D., Constantinos C.V. (2008), Design and analysis of a solar reactor for anaerobic wastewater treatment, “Bioresource Technology” No. 99, p. 7742-7749
• Bavutti M. et al., (2014), Thermal stabilization of digesters of biogas plants by means of optimization of the surface radiative properties of the gasometer domes, “Energy Procedia” No. 45, p. 1344-1353
• Rynkowski P. (2017), The energy source for heat pumps with vertical heat exchanger, International Conference on Advances in Energy Systems and Environmental Engineering (ASEE17), (not published)