Table 6 Statistical comparison of this paper with the literature on different fuel curing houses published in recent years in terms of main gas emissions, energy consumption, economy, yellowing period, color fixation period and steel bar drying period.
Author | Fuel | Emission factors | Energy consumption | Economical | Yellowing, color fixation and dry period | Main conclusions |
|---|---|---|---|---|---|---|
Liu 12 | Alcohol, biomass, coal | CO/SO2/ NOx | Fuel usage, power consumption | Electricity, labor and fuel cost | No | The NOx and CO emissions of alcohol-based fuel baking were reduced by 84.7% and 99.7%, respectively |
Lan 24 | Biomass, coal | CO2/SO2/ NOx | Fuel quantity | Tobacco leaf price | No | The exhaust gas emissions from biomass drying rooms are much lower than those from conventional drying rooms |
Guo 28 | Alcohol, biomass, coal | Yes | Power and fuel consumption | Electricity costs, fuel costs | Statistics of baking time for each period | All three alternative energy sources are superior to lignite in terms of pollutant emissions |
Zhang 30 | Coal | No | No | No | Statistics of baking time for each period | The yellowing period is long, while the color fixing period and the drying period are short |
Kaifeng Shuai 34 | Biomass, coal | CO2/SO2/ CO | fuel consumption | No | No | The exhaust gas concentrations from coal-fired and biomass drying rooms have dropped significantly |
Proposed study | Biomass, alcohol, natural gas | CO2/SO2/NO/NO2 | Fuel consumption per furnace, power consumption, unit dehumidification energy consumption, fuel cost | Electricity cost, dried tobacco leaf cost, fuel consumption cost | Statistical analysis of baking time and main gas emissions in each period | Natural gas and alcohol products can play a clear role in energy conservation, emission reduction, cost reduction and efficiency improvement |
