Commenced in January 2007
Frequency: Monthly
Edition: International
Paper Count: 30172
Microwave Drying System with High-Tech Phase Controller: A Modified Applicator

Authors: A. S. Jambhale, B. V. Barbadekar

Abstract:

Microwave energy can be used for drying purpose. It is unique process. It is distinctly different from conventional drying process. It is advantageous over conventional drying / heating processes. When microwave energy is used for drying purpose, the process can be accelerated with a better control to achieve uniform heating, more conversion efficiency, selective drying and ultimately improved product quality of the output. Also, less floor space and compact system are the added advantages. Existing low power microwave drying system is to be modified with suitable applicator. Appropriate sensors are to be used to measure parameters like moisture, temperature, weight of sample. Suitable high tech controller is to be used to control microwave power continuously from minimum to maximum. Phase - controller, cycle - controller and PWM - controller are some of the advanced power control techniques. It has been proposed to work on turmeric using high-tech phase controller to control the microwave power conveniently. The drying of turmeric with microwave energy employing phase controller gives better results as formulated in this paper and hence new approach of processing turmeric will open future doors of profit making to allied industries and the farmers.

Keywords: Applicator, microwave drying, phase controller.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1070467

Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1556

References:


[1] Barbosa-Canovas, G. V. Vega-Mercado. "Dehydration of foods". New- York, N.Y: International Thomson publishing, 1996.
[2] Beaudry C "Evaluation of drying methods on osmotically dehydrated cranberries". MS Thesis. Montreal QC: McGill University, Department of Agriculture and Biosystem Engineering. 2001
[3] Brown, A. H., W. B. VanArsdel, E. Lowe "Drying methods and driers". In food Dehydration, Vol-II. Edited by W.B.V. Arsdel, M. J. Copley. Westport, Connecticut: The AVI Publishing company, INC, 1964.
[4] Dorin Bolder, Temperature control of the continuous peanut drying process using Microwave Technology, Ph.D. thesis-2003.
[5] J. Whole, "Microwave Technology and Applications" Transaction of the International Microwave Power Institute, Vol-1. Clifton Vargini 1973- 10 pp 40-61.
[6] Jayarama, K. S. and D.K.D. Gupta. "Drying of fruits and vegetables". Handbook of Industrial drying, 2nd edition Vol.1. Edited by A. S. Mujumdar, chapter 21, 1995.
[7] Liang L., Z.Mao, Y. Cheng, "Study on the Application of freeze-drying and microwave drying to flowers." ASAE paper No. 036075 St. Joseph, Mich.: ASAE, 2003.
[8] Sanga, E., A. S. Mujamdar and G. S. V. Raghavan, "Principals and application of Microwave Drying". In: Drying technology in agriculture and food sciences. Edited by A. S. Mujumdar. Enfiled N. H.: Science publishers. Inc. 2000.
[9] Sunjka P. S "Microwave / Vacuum and osmotic drying of cranberries". M S Thesis. Montreal QC: Mc Grill University department of Agriculture and Biosystem Engineering, 2003.
[10] Tulsidas, T. N. "Combined convective and microwave drying of grapes. Ph.D. thesis, Montreal QC: McGill University: Departmental of Agriculture Engineering. 1994.
[11] Venkatachalapathy, K "Combined osmotic and microwave drying of strawberries and bluebarries". Ph.D. Thesis. Montreal, QC: McGill University Department Agriculture and Biosystems Engineering. 1998.