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Design of a partially aerated naturally aspirated burner for producer gas

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  • Sutar, Kailasnath B.
  • M.R., Ravi
  • Kohli, Sangeeta

Abstract

This article presents a detailed methodology for the design of a partially aerated naturally aspirated burner used for combustion of the producer gas generated in a downdraft gasifier cookstove. The main difference between an LPG burner and producer gas burner is that the former uses a high velocity jet of gas at ambient temperature whereas the latter uses a low velocity, high mass flow rate, buoyant jet of gas at 100–300 °C. Due to the elevated temperatures, buoyancy force plays an important role in entraining combustion air into the burner for producer gas. This has been accounted for in the new methodology, developed based on the design procedure available in the literature for hydrocarbon fuels. A mathematical model for fluid flow and heat transfer through the burner has been developed to predict percentage of primary aeration in the burner at different producer gas flow rates. The pressure drops predicted by the model have been validated using experimental measurements. The predictions of the model have been used to corroborate the assumptions and heuristics used in the design methodology. The predictions have also been used to demonstrate the importance of considering buoyancy in burner design, by comparing with a burner designed ignoring buoyancy. With the use of the newly designed burner, the thermal efficiency of the gasifier cookstove was found to improve substantially. Carbon monoxide (CO) emissions from the cookstove using this burner were also found to be within the limits (<5 g/MJd) recommended in the Indian Standards for cookstoves.

Suggested Citation

  • Sutar, Kailasnath B. & M.R., Ravi & Kohli, Sangeeta, 2016. "Design of a partially aerated naturally aspirated burner for producer gas," Energy, Elsevier, vol. 116(P1), pages 773-785.
  • Handle: RePEc:eee:energy:v:116:y:2016:i:p1:p:773-785
    DOI: 10.1016/j.energy.2016.10.019
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    References listed on IDEAS

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    1. Bhoi, P.R. & Channiwala, S.A., 2008. "Optimization of producer gas fired premixed burner," Renewable Energy, Elsevier, vol. 33(6), pages 1209-1219.
    2. Namkhat, A. & Jugjai, S., 2010. "Primary air entrainment characteristics for a self-aspirating burner: Model and experiments," Energy, Elsevier, vol. 35(4), pages 1701-1708.
    3. Yu, Byeonghun & Kum, Sung-Min & Lee, Chang-Eon & Lee, Seungro, 2013. "Combustion characteristics and thermal efficiency for premixed porous-media types of burners," Energy, Elsevier, vol. 53(C), pages 343-350.
    4. Pantangi, V.K. & Mishra, Subhash C. & Muthukumar, P. & Reddy, Rajesh, 2011. "Studies on porous radiant burners for LPG (liquefied petroleum gas) cooking applications," Energy, Elsevier, vol. 36(10), pages 6074-6080.
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    Cited by:

    1. Sutar, Kailasnath B. & Kohli, Sangeeta & Ravi, M.R., 2023. "Clean cooking with downdraft biomass gasifier cookstove: Effect of gasifier performance," Energy, Elsevier, vol. 263(PA).
    2. Roberto Moreno-Soriano & Froylan Soriano-Moranchel & Luis Armando Flores-Herrera & Juan Manuel Sandoval-Pineda & Rosa de Guadalupe González-Huerta, 2020. "Thermal Efficiency of Oxyhydrogen Gas Burner," Energies, MDPI, vol. 13(20), pages 1-11, October.
    3. Deore, Sujeetkumar P. & Gadkari, Prabodh & Mahajani, Sanjay M. & Kumar, Sandeep & Kumar, Sudarshan, 2023. "Development of a new premixed burner for biomass gasifier generated low calorific value producer gas for industrial applications," Energy, Elsevier, vol. 279(C).
    4. Janvekar, Ayub Ahmed & Miskam, M.A. & Abas, Aizat & Ahmad, Zainal Arifin & Juntakan, T. & Abdullah, M.Z., 2017. "Effects of the preheat layer thickness on surface/submerged flame during porous media combustion of micro burner," Energy, Elsevier, vol. 122(C), pages 103-110.
    5. Pio, D.T. & Tarelho, L.A.C. & Pinto, P.C.R., 2020. "Gasification-based biorefinery integration in the pulp and paper industry: A critical review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 133(C).
    6. Sutar, Kailasnath B. & Kohli, Sangeeta & Ravi, M.R., 2017. "Design, development and testing of small downdraft gasifiers for domestic cookstoves," Energy, Elsevier, vol. 124(C), pages 447-460.

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