Res. Agr. Eng., 2011, 57(10):S24-S29 | DOI: 10.17221/55/2010-RAE
Drying medium - modelling and process evaluation
- Faculty of Engeneering, Slovak University of Agriculture in Nitra, Nitra, Slovak Republic
Natural gas is used as a heat source in the majority of modern drying plants in agriculture. The input gas is a mixture of natural gas and atmospheric air. With burning, the composition of this mixture changes. Drying medium is a mixture of hot combustion gases from natural gas and atmospheric air added. The thermic parameters of natural gas and atmospheric air are permanently constant. The authors present their method of the calculation of thermodynamic parameters of the drying medium. They elaborated two computer programmes in Q-Basic for the calculation related to the drying medium with temperatures in the range 100-200°C.
Keywords: natural gas; drying medium; computer program
Published: December 31, 2011 Show citation
References
- Havelka J., Látal S., Navrátil S., 1989. Teplotechnika a hydrotechnika (Thermotechnics and Hydromechanics). Bratislava/Prague, Príroda/SZN: 352.
- Chyský J., 1977. Vlhký vzduch (Wet Air). Prague, SNTL: 160.
- Kasatkin A.G., 1957. Základní pochody a zařízení chemické technologie (Basic Processes and Appliances of Chemical Technology). Prague, SNTL: 415.
- Imre L., 1974. Száritási közikönyv (Manual of Drying). Budapest, Müszaki Könyvkiado: 1122.
- Maltry W., Pötke E., 1966. Technika poľnohospodárského sušiarenstve (Technics of Drying in Agriculture). Bratislava, SVPL: 340.
- Pabis S., 1965. Suszenie plodów rolnych (Drying of Agricultural Products). Warszawa, PWRiL: 312.
- Pabis S., 1982. Teoria konwekcyjnego suszenia produktov rolniczych (Theory of heat conduction drying of agricultural products). Warszawa, PWRiL: 229.
- Ražnjevič J., 1969. Tepelné tabuľky a diagramy (Thermal Tables and Diagrams). Bratislava, ALFA: 340.
- SPP Bratislava, 2010. Zloženie zemného plynu 2009 (Composition of natural gas 2009). Available at www.spp.sk (accessed March 10, 2010).
- Valchař J., Choc M., Tuma V., Kolář S., 1967. Základy sušení (Theory of Drying). Prague, ČVUT/SNTL: 396.
- Vitázek I., 2006. Tepelné procesy v plynnom prostredí (Heat Processes in Gaseous Atmosphere). Nitra, SPU in Nitra: 98.
- Vitázek I., 2 8. Teplotechnika a hydrotechnika (Thermo
- Vitázek I., Havelka J., 2010. Thermodynamics of combustion of fuel gases. In: ES 2010 Power System Engineering, Thermodynamics & Fluid flow. University of West Bohemia, Plzeň: 6.
This is an open access article distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International (CC BY NC 4.0), which permits non-comercial use, distribution, and reproduction in any medium, provided the original publication is properly cited. No use, distribution or reproduction is permitted which does not comply with these terms.