Modelling of microwave drying of grapes

Canadian Agricultural Engineering

Volumn 39, Issue 1, 1997, Pages 57-67

  Tulasidas, T N ^a   Ratti, C ^b   Raghavan, G S V ^c  

^a UNIVERSITY OF AGRICULTURAL SCIENCES   (India)

^b UNIVERSITÉ LAVAL   (Canada)

^c MCGILL UNIVERSITY   (Canada)

Author keywords

Dielectric drying; Electric field strength; Grapes; Method of lines; Moving coordinates; Raisins; Shrinkage; Single mode cavity

Indexed keywords

DIELECTRIC HEATING; DIFFUSION; DRYING; ELECTRIC FIELD EFFECTS; EVAPORATION; HEAT CONVECTION; MATHEMATICAL MODELS; MICROWAVES; MOISTURE; PHYSICAL PROPERTIES;

DIELECTRIC CO-ORDINATES; ELECTRIC FIELD STRENGTH; GRAPES; INTERNAL HEAT GENERATION; MICROWAVE DRYING; SINGLE MODE CAVITY;

FRUITS;

EID: 0030681982     PISSN: 0045432X     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

References (40)

1. Bird, R.B., W.E. Stewart and E.N. Lightfoot. 1960. Transport Phenomena. New York, NY: John Wiley and Sons, Inc.
2. Boland, F.E. 1984. Fruits and fruit products. In AOAC Official Methods of Analysis, ed. W. Horwitz, 413-418. Washington, DC: AOAC.
3. Buffler, C.R. 1993. Microwave Cooking and Processing. New York, NY: Van Nostrand Reinhold.
4. Caldas, P.P. 1992. Experimental high frequency dryer for granular materials. Transactions of the ASAE 35(4):1275-1282.
5. Crank, J. 1975. The Mathematics of Diffusion. Oxford, U.K.: Oxford University Press.
6. Crapiste, G., S. Whitaker and E. Rotstein. 1988a. Drying of cellular material I. A mass transfer theory. Chemical Engineering Science 43(11):2919-2928.
7. Crapiste, G., S. Whitaker and E. Rotstein. 1988b. Drying of cellular material II. Experimental and numerical results. Chemical Engineering Science 43(11):2929-2936.
8. Geankoplis, C.J. 1993. Transport Processes and Unit Operations. Englewood Cliffs, NJ: Prentice Hall.
9. Gear, C.W. 1971. Numerical Initial Value Problems in Ordinary Differential Equations. Englewood Cliffs, NJ: Prentice Hall.
10. Gunasekaran, S. 1990. Drying corn using continuous and pulsed microwave energy. Drying Technology 8(5): 1039-1047.
11. Hindmarsh, A.C. 1972. Linear multistep methods for ordinary differential equations. Method formulations, stability, and the methods of Nordsieck and Gear. UCLR-51186. Rev. 1. Livermore, CA: Lawrence Livermore Laboratory.
12. Hindmarsh, A.C. 1974. Gear - Ordinary differential equations system solver. UCID-3001. Rev. 3. Livermore, CA: Lawrence Livermore Laboratory.
13. Lozano, J.E., E. Rotstein and M.J. Urbicain. 1983. Shrinkage, porosity and bulk density of food stuffs at changing moisture contents. Journal of Food Science 48(5):1497-1502.
14. Maroulis, Z.B., E. Tsami and D. Marinos-Kouris 1988. Application of the GAB model to the moisture sorption isotherms for dried fruits. Journal of Food Engineering 7(1):63-78.
15. Masi, P. and M. Riva. 1988. Modelling grape drying kinetics. In Preconcentration and Drying of Food Materials, ed. S. Bruin, 203-214. Amsterdam, The Netherlands: Elsevier Science Publishers.
16. Metaxas, A.C. and R.J. Meredith. 1983. Industrial Microwave Heating. Herts, England: Peter Peregrinus Ltd.
17. Miller, M. W. 1963. Grapes to raisins. In 20 Years of Raisins Research, 19-24. Fresno, CA: California Raisin Advisory Board.
18. Mohsenin, N.N. 1986. Physical Properties of Plant and Animal Materials. New York, NY: Gordan and Breach Science Publishers.
19. Otten, L. and C. St. John. 1988. Thin-layer microwave drying of peanuts. CSAE Paper No. 88-502. Saskatoon, SK: CSAE.
20. Page, G.E. 1949. Factors influencing the maximum rates of air drying shelled corn in thin layers. M.Sc. Thesis. Purdue University, West Lafeyette, IN.
21. Perkin, R.M. 1990. Simplified modelling for the drying of a non-hygroscopic capillary porous body using combination of dielectric and convective heating. Drying Technology 8(5):931-951.
22. Ptasznik, W., S. Zygmunt and T. Kudra. 1990. Simulation of RF-assisted convective drying for seed quality broad bean. Drying Technology 8(5)977-992.
23. Raghavan, G.S.V. 1994. Numerical analysis applications in food and biological engineering processes. ASAE paper No. 94-3582. St. Joseph, MI: ASAE.
24. Raghavan, G.S.V., P. Alvo and U.S. Shivhare. 1993. Microwave drying of cereal grain: advantages and limitations. Post Harvest News 4(3):79N-83N.
25. Ratti, C. 1991. Design of dryers for vegetable and fruit products. Ph.D. Thesis, Universi dad Nacional del Sur, Bahia Blanco, Argentina.
26. Ratti, C., G.H. Crapiste and E. Rotstein. 1989a. A new water sorption equilibrium expression for solid foods based on thermodynamic considerations. Journal of Food Science 54(3):738-742.
27. Ratti, C., G.H. Crapiste and E. Rotstein. 1989b. PSYCHR: A computer program to calculate psychrometric properties. Drying Technology 7(3):575-580.
28. Ratti, C. and A.S. Mujumdar. 1993. Fixed-bed batch drying of shrinking particles with time varying drying air conditions. Drying Technology 11(6):1311-1335.
29. Riva, M. and C. Peri. 1986. Kinetics of sun and air drying of different varieties of seed-less grapes. Journal of Food Technology 21(2): 199-208.
30. Saravacos, G.D. and S.N. Marousis. 1988. Effect of ethyl oleate on the rate of air drying of foods. Journal of Food Engineering 7(4):263-270.
31. Saravacos, G.D. and G.S. Raouzeos. 1986. Diffusivity of moisture in air-drying of raisins. In Proceedings of the International Drying Symposium, IDS '86, ed. A.S. Mujumdar, 487-491, New York, NY: Hemisphere Publishing Corp.
32. SAS. 1989. SAS/STAT User's Guide, Version 6, 4th ed., Volume 2, Cary, NC: SAS Institute Inc.
33. Shivhare, U.S., P. Alvo, G.S.V. Raghavan, and F.R. van de Voort. 1992. Application of response surface methods in grain drying research. In Proceedings of the International Drying Symposium, IDS '92, ed. A.S. Mujumdar, 1549-1559. Amsterdam, The Netherlands: Elsevier Applied Science Publishers.
34. SigmaPlot, 1992. SigmaPlot Scientific Graph System: Transforms and Curve Fitting. San Rafael, CA: Jandel Scientific.
35. Steel, R.G.D. and J.H. Torrie. 1980. Principles and Procedures of Statistics. New York, NY: McGraw-Hill Book Co., Inc.
36. Tulasidas, T.N. 1994. Combined convective and microwave drying of grapes. Ph.D. Thesis. McGill University, Montreal, QC.
37. Tulasidas, T.N., G.S.V. Ragahavan and R. Girard. 1994. Dielectric properties of grapes and sugar solutions at 2450 MHz. ASAE Paper No. 94-3005. St. Joseph, MI: ASAE.
38. Tulasidas, T.N., G.S.V. Raghavan and E.R. Norris. 1993. Microwave and convective drying of grapes. Transactions of the ASAE 36(6):1861-1865.
39. Turner, I.W. and P.G. Jolly. 1991. Combined microwave and convective drying of a porous material. Drying Technology 9(5): 1209-1269.
40. Weres, J. and D.S. Jayas. 1994. Thin-layer drying of corn: Experimental validation of a new numerical structural model. Canadian Agricultural Engineering 36(2):85-91.