Application of automatic control furnace for combustion of biomass briquette fuel for tobacco curing

Abstract

Applying biomass energy for curing flue-cured/Virginia tobacco heating is the best way to realize green tobacco production. Aiming to satisfy the heating demand for flue-cured tobacco curing, a new heating device that uses biomass briquettes as fuel for curing tobacco is adopted the first time, which was developed using modern mature electromechanical and computer technology. The new device consists of automatic feeding, ash cleaning, ventilation, and ignition systems governed by an intelligent tobacco-curing controller designed for specific curing characteristics. The results of experiments conducted with an original direct combustion coal furnace, bulk curing barn, and controlled coal-fired heating indicated that the heat supply of the new device could satisfy the heat demand during the tobacco curing process, with a good performance-controlling difference of ± 0.5 °C between the actual and target dry-bulb temperature in the barn. With its unattended heating management and use of fully burning fuel, the new device sharply decreased the cost of manual operation and tobacco leaves required per kilogram compared to a coal furnace. Considering the shape of its structure, the new device could be used to heat homes or small-scale boilers if the chip procedure of the controller is altered.

Performance of an Intelligent Biomass Fuel Burner as an Alternative to Coal-Fired Heating for Tobacco Curing

“…As compared to firewood and the same direct-fired combustion mode, BBF burned more stably mainly due to its uniform size; the upgraded energy efficiency for burning BBF ranged from 39 to 42% [34]. With burning gasification gas applying the special furnace structure for BBF via manual operation [26,35], the energy efficiency could be improved from 53.17 to 55.26%. In this work, applying mature electromechanical and computer technology with integrated combustion/gasification furnace for BBF, the system thermal efficiency is improved to 56.93%.…”

Influences of Loading Density of Tobacco Drying Chamber on Drying Quality

“…In order to reduce deforestation, tobacco drying systems that do not use wood are researched and manufactured for use. These drying systems have a forced air circulation system and automatic control system to save energy and reduce labour [9,10].…”

Screening and Testing of Anti-Slagging Agents for Tobacco-Stalk-Based Biomass Pellet Fuel for Tobacco Curing

“…Bypassing the use of coal-fired heating for flue-cured tobacco curing can effectively ameliorate the current global environmental pollution problem [1]. With technological advances increasing the use of combustion technology using BPF burners for flue-cured tobacco heating (FTH), a growing number of flue-cured-tobacco-producing countries and regions have begun to transition from fossil fuels to biomass fuel as their primary tobacco-curing heat source [2,3]. Through the analysis of various heat sources in the agricultural field of flue-cured tobacco production, previous studies have indicated that BPT offers an optimal method to realize the green production of flue-cured tobacco [4][5][6].…”