Abstract

In the past years, we researched many kinds of tobacco leaf drying models with the last purpose is to replace fuel for drying from fire wood to char-coal. These research gained many good results. However, we need to research, calculate how using heating resource suitably, saving fuel, reducing production cost and ensuring quality of dried tobacco leaf product highly so that our research can be used widely. Results of experimental planning method with multi-parameters which found out regression equations representing the influence of working parametes of tobacco leaf dryer to two economic-technical parameters that are quality of tobacco leaf after drying and consumed fuel as well as optimum parameters. Results of experiments shown that two burning chambers tobacco leaf dryer can use the whole char-coal as fuel with high quality product, low drying cost compare to traditional one burning chamber tobacco leaf dryer. This model can be feasibly applied in pratice due to rebuilding easily the existent dryers, abundani and available fuel resource. Most important, the percentage of high tobacco leaf quality after drying.