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Abstract <p>Tobacco curing is a high-energy-consuming processing within the tobacco supply chain. Over the past few decades, various biomass pellet fuel (BPF) heating equipment has been developed to reduce carbon emissions associated with tobacco curing. Compared to BPF, biomass fragment fuel (BFF) offers several advantages, including lower cost, ease of production and complete combustion. This research aims to develop an efficient biomass fragment fuel burner (BFFB) heating system for tobacco curing. A four-stage air-supply BFFB was designed and constructed. A comparative study was conducted using tobacco stalk BFF and BPF. The experimental results indicated that the heating performance of the experimental curing barn (ECB) surpassed of the control curing barn (CCB). Compared to the CCB, the maximum deviations of dry-bulb and wet-bulb temperatures in ECB were reduced by 0.4&#xa0;°C and 0.3&#xa0;°C, respectively. The ECB exhibited consistently lower emission levels for the major pollutants than the CCB, demonstrating better air distribution and fuel–air mixing characteristics. Additionally, the energy cost of tobacco curing decreased by 16.64%, while average thermal efficiency increased by 7.79%. In terms of temperature control, flue gas emission, energy cost and thermal efficiency, the proposed four-stage air-supply BFFB presents a viable alternative for tobacco curing.</p> Graphical Abstract <p></p>

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The Tobacco Curing Heating Performance of a Four-Stage Air-Supply Biomass Fragment Fuel Burner

  • 期刊论文

  • 发表日期：

    2025年12月5日

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  • Changlang Wu,
  • Yi Chen,
  • Yonglei Jiang,
  • Huilong Luo,
  • Ke Ren,
  • Chengyan Xiong,
  • Yuan Wang,
  • Siqi Zhu,
  • Kuiliang Chen,
  • Guohui Xue

摘要

Abstract

Tobacco curing is a high-energy-consuming processing within the tobacco supply chain. Over the past few decades, various biomass pellet fuel (BPF) heating equipment has been developed to reduce carbon emissions associated with tobacco curing. Compared to BPF, biomass fragment fuel (BFF) offers several advantages, including lower cost, ease of production and complete combustion. This research aims to develop an efficient biomass fragment fuel burner (BFFB) heating system for tobacco curing. A four-stage air-supply BFFB was designed and constructed. A comparative study was conducted using tobacco stalk BFF and BPF. The experimental results indicated that the heating performance of the experimental curing barn (ECB) surpassed of the control curing barn (CCB). Compared to the CCB, the maximum deviations of dry-bulb and wet-bulb temperatures in ECB were reduced by 0.4 °C and 0.3 °C, respectively. The ECB exhibited consistently lower emission levels for the major pollutants than the CCB, demonstrating better air distribution and fuel–air mixing characteristics. Additionally, the energy cost of tobacco curing decreased by 16.64%, while average thermal efficiency increased by 7.79%. In terms of temperature control, flue gas emission, energy cost and thermal efficiency, the proposed four-stage air-supply BFFB presents a viable alternative for tobacco curing.

Graphical Abstract