Technological and Technical Development of Tobacco Drying

More documents

Recommendations

Info

Figure 6. Outline of the “MKD-25” small barn (new system). Table 3. Comparing of the most important specific drying characteristics. Type of the curing barn Description of character New system Old system Curing period (hours) 120-140 130-150 Average oil-consumption (kg/h) 1,28 1,36 Specific oil-consumption 0,54 0,82 (kg/kg dried tobacco) Specific heat-demand for evaporation of water (kJ/kg water) 4200 7800 Specific electric energy consumption (kwh/kg dried tobacco) 0,46 0,87 Substance-rate (green/dried tobacco) 4,7 5,5 Water-evaporation capacity of the barn (kg/h) 12,7 6,2 Capacity of humidifying (kg/h) 5,9 4,1 Period of humidifying (hours) 9,6 7,1 Specific heat-loss (kWh/h) (ambient temperature:10°C) (internal temperature: 70°C) 10 22 The technical data and the specific drying characteristics of the new system barn were compared with a conventional system, but newly manufactured tobacco equipment.
The Table 3. represents the results of the practical curing, comparing the measured and calculated curing features. Comparing the data in the above-mentioned table, we can conclude, that the newly established drying equipment produces better parameters in every view of points. CONCLUSIONS The presented research work tried to summarizes the technical and technological development work in curing of flue-cured tobacco and to find relationships between the most important parameters which can influence the final quality of the flue-cured tobacco. Namely: how do the starting conditions of the practical drying (curing) parameters influence the quality of the end-produce? The evaluation method and collection of the information can provide useful basic data for the tobacco growers and processing companies. The results will contribute to the preparation of a new, more precise quality assurance system, and service the development of the engineering side (new equipment). Summarizing the presented research and development work, the results and the practical experiences represent a considerably better quality at the dried tobacco leaves and assure more than forty percent spare of the drying energy. The Nyíregyháza College incorporates these results into the running training programs and establishes cooperation with local tobacco farmers and the processing corporation. LITERATURE Borsos, J., 1994, A dohány termesztése (Production of tobacco), Akadémiai Kiadó, Budapest, pp. 186- 225. Collins, W. K., Hawks, S. N., 1993, Principles of flue-cured tobacco production, N. C. State University, USA, pp. 216-231. Davis, D. L., Nielsen, M. T., 1999, Tobacco Production, Chemistry, Technology, Blackwell Science, pp. 104-142. Kerekes, B., 1996, Technological development for improving the quality of flue-cured tobacco, Hungarian Agricultural Engineering, Vol. 9, pp. 62-63. Kerekes, B., Lengyel, A., Sikolya, L., 1997, Development of the tobacco curing technology and equipment for improvement of the quality, Scientific Bulletin of the International Multidisciplinary Conference, Baia Mare (Romania), pp. 2-7. Kerekes, B., Lengyel, A., 1998, New method and equipment for curing of flue-cured tobacco, Hungarian Agricultural Engineering, Vol. 11, pp. 36-38. Kerekes, B., 1999, Technological development of harvesting and curing of tobacco, Bulletin of “Tessedik” Agricultural Scientific Days, Deberecen, pp. 123-129.
Page 1 and 2: TECHNOLOGICAL AND TECHNICAL DEVELOP
Page 3 and 4: Every year we emphasize to do toppi
Page 5 and 6: Air demand, [kg/kg wate Heat demand
Page 7: 'There is another disadvantage, tha

Technological and Technical Development of Tobacco Drying

Create successful ePaper yourself

Delete template?

Save as template?