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Clean cooking with downdraft biomass gasifier cookstove: Effect of gasifier performance

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

Abstract

Two downdraft gasifier cookstoves, one of 4 kWth and another of 2.5 kWth input power ratings have been developed by the authors for domestic cookstove application. The downdraft gasifier cookstove has a gasifier unit followed by a partially aerated burner. Thus, the efficiency of the gasifier cookstove is the product of the gasification efficiency of the gasifier unit and the burner efficiency. The present work reports the effects of the output parameters of the gasifier, viz. gas flow rate, gas composition as reflected by the lower calorific value (LCV) of producer gas, and the gas temperature, on thermal performance and emissions of the cookstoves. Laboratory-based water boiling tests were conducted on both the cookstoves to study the effect of these parameters on cookstove efficiency, burner efficiency and emission factors of CO and PM2.5. The turn down ratios of 4 kWth and 2.5 kWth gasifier cookstoves were 2.2 and 2.8 respectively. The maximum efficiency for 4 kWth cookstove (44.6%) occurred at input power of 4.4 kW whereas that for 2.5 kWth cookstove (45.1%) occurred at 3.2 kW. Average CO emission factor for 4 kWth and 2.5 kWth cookstoves was 4.2 g/MJd and 2.84 g/MJd respectively.

Suggested Citation

  • 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).
    • Handle: RePEc:eee:energy:v:263:y:2023:i:pa:s0360544222025178
    DOI: 10.1016/j.energy.2022.125631
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    References listed on IDEAS

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    1. Ahmed, Mansoor & Shuai, Chuanmin & Abbas, Khizar & Rehman, Faheem Ur & Khoso, Wali Muhammad, 2022. "Investigating health impacts of household air pollution on woman's pregnancy and sterilization: Empirical evidence from Pakistan, India, and Bangladesh," Energy, Elsevier, vol. 247(C).
    2. Sutar, Kailasnath B. & Kohli, Sangeeta & Ravi, M.R. & Ray, Anjan, 2015. "Biomass cookstoves: A review of technical aspects," Renewable and Sustainable Energy Reviews, Elsevier, vol. 41(C), pages 1128-1166.
    3. 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.
    4. Hou, Bingdong & Wu, Jingwen & Mi, Zhifu & Ma, Chunbo & Shi, Xunpeng & Liao, Hua, 2022. "Cooking fuel types and the health effects: A field study in China," Energy Policy, Elsevier, vol. 167(C).
    5. 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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    1. Gonçalves, Rui & Ribeiro, Vitor Miguel, 2024. "Convolutional attention with roll padding: Classifying PM2.5 concentration levels in the city of Beijing," Energy, Elsevier, vol. 289(C).

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