Abstract
During last decades a lot of new drying techniques have been developed. Some of them are focused on breaking the limits of convective drying usually by applying intermittent conditions or utilization of few drying techniques in one process (hybrid drying). The purpose of the chapter is to discuss these new opportunities. Hence the convective non-stationary drying and various hybrid drying techniques (convective–microwave, convective–microwave–infrared, convective–microwave–ultrasonic and microwave-vacuum drying) are discussed. Many examples are provided in this chapter to illustrate the impact of the applied drying conditions and techniques on time consumption, process energy consumption, and on the quality of the product obtained. In particular, the drying of kaolin clay, oak, pine and walnut wood, apple, carrots, kale, potatoes, raspberries and red pepper are presented. The results of the studies indicate that both variable drying conditions and hybrid techniques may result in improved drying kinetics, reduced process energy consumption, and increased product quality.
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Chemat F, Rombaut N, Sicaire A-G et al (2017) Ultrasound assisted extraction of food and natural products. Mechanisms, techniques, combinations, protocols and applications. A review. Ultrason Sonochem 34:540–560
Chou SK, Chua KJ (2001) New hybrid drying technologies for heat sensitive foodstuffs. Trends Food Sci Technol 12(10):359–369
Claussen IC, Yang TS, Strommen I et al (2007) Atmospheric freeze drying—a review. Dry Technol 25(4–6):947–957
Cui Z-W, Xu S-Y, Sun D-W (2004) Effect of microwave-vacuum drying on the carotenoids retention of carrot slices and chlorophyll retention of Chinese chive leaves. Dry Technol 22(3):563–575
Figiel A (2009) Drying kinetics and quality of vacuum-microwave dehydrated garlic cloves and slices. J Food Eng 94(1):98–104
Fushimi C, Dewi WN (2015) Energy efficiency and capital cost estimation of superheated steam drying processes combined with integrated coal gasification combined cycle. J Chem Eng Jpn 48(10):872–880
Hansson L, Antti AL (2003) The effect of microwave drying on Norway spruce woods strength: a comparison with conventional drying. J Mater Process Technol 141(1):41–50
He Q, Wang X (2015) Drying stress relaxation of wood subjected to microwave radiation. BioResources 10(3):4441–4452
Herrithsch A, Dronfield J, Nijdam J (2008) Intermittent and continuous drying of red-beech timber from the green conditions. In: Proceedings of the 16th international drying symposium, Hyderabad, India, pp 1114–1121
Hu Q-G, Zhang M, Mujumdar AS et al (2006) Effects of different drying methods on the quality changes of granular edamame. Dry Technol 24(8):1025–1032
Itaya Y, Hasatani M (1996) R&D needs—drying of ceramics. Dry Technol 14(6):1301–1313
Itaya Y, Mori S, Hasatani M (2014) Drying of ceramics. In: Handbook of industrial drying, 4th Edition. CRC Press, pp 717–728
Jangam SV, Mujumdar AS (2011) Heat pump assisted drying technology—overview with focus on energy, environment and product quality. In: Tsotsas E, Mujumdar AS (eds) Modern drying technology. Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, pp 121–162
Kowalski SJ, Pawłowski A (2010a) Drying of wood with air of variable parameters. Chem Process Eng 31(1):135–147
Kowalski SJ, Pawłowski A (2010b) Drying of wet materials in intermittent conditions. Dry Technol 28(5):636–643
Kowalski SJ, Szadzińska J (2012) Non-stationary drying of ceramic-like materials controlled through acoustic emission method. Heat Mass Transf 48(22):2023–2032
Kudra T (2004) Energy aspects in drying. Dry Technol 22(5):917–932
Kudra T, Mujumdar AS (eds) (2009) Advanced drying technologies, 2nd edn. CRC Press, Boca Raton (USA)
Kumar C, Karim MA, Joardder MUH (2014) Intermittent drying of food products: a critical review. J Food Eng 121(1):48–57
Labuza TP, McNally L, Gallagher D et al (1972) Stability of intermediate moisture foods. 1. Lipid oxidation. J Food Sci 37(1):154–159
Leeratanarak N, Devahastin S, Chiewchan N (2006) Drying kinetics and quality of potato chips undergoing different drying techniques. J Food Eng 77(3):635–643
McLoughlin CM, McMinn WAM, Magee TRA (2003) Microwave-vacuum drying of pharmaceutical powders. Dry Technol 21(9):1719–1733
Mujumdar AS (2004) Research and development in drying: recent trends and future prospects. Dry Technol 22(1–2):1–26
Mujumdar AS (2007) An overview of innovation in industrial drying: current status and R&D needs. Transp Porous Media 66(1–2):3–18
Musielak G (2004) Modeling and numerical simulation of transport phenomena and drying stresses in capillary-porous materials. Poznań University of Technology, Poznań
Musielak G, Mierzwa D, Kroehnke J (2016) Food drying enhancement by ultrasound—a review. Trends Food Sci Technol 56:126–141. https://doi.org/10.1016/j.tifs.2016.08.003
Musielak G, Śliwa T (2015) Modeling and numerical simulation of clays cracking during drying. Dry Technol 33(14):1758–1767
Oloyede A, Groombridge P (2000) The influence of microwave heating on the mechanical properties of wood. J Mater Process Technol 100(1–3):67–73
Parikh DM (2015) Vacuum drying: basics and application. Chem Eng 122(4):48–54
Pawłowski A (2011) Efficiency of drying of saturated porous materials in non-stationary conditions. Poznań University of Technology, Poznań
Ratti C, Mujumdar AS (2014) Infrared drying. In: Handbook of industrial drying, 4th Edition. CRC Press, pp 405–420
Sandoval-Torres S, Jomaa W, Marc F et al (2010) Causes of color changes in wood during drying. For Stud China 12(4):167–175
Seyfarth R, Leiker M, Mollekopf N (2003) Continuous drying of lumber in a microwave vacuum kiln. In: Proceedings of 8th international IUFRO wood drying conference, pp 159–163
Sokhansanj S, Jayas DS (2014) Drying of foodstuffs. In: Handbook of industrial drying, 4th Edition. CRC Press, pp 521–544
Song XJ, Zhang M, Mujumdar AS, Fan L (2009) Drying characteristics and kinetics of vacuum microwave–dried potato slices. Dry Technol 27(9):969–974
Strumiłło C, Jones PL, Żyłła R (2014) Energy aspects in drying. In: Mujumdar AS (ed) Handbook of industrial drying, 4th Edition, CRC Press, pp 1077–1100
Wang R, Zhang M, Mujumdar AS (2010) Effect of osmotic dehydration on microwave freeze-drying characteristics and quality of potato chips. Dry Technol 28(6):798–806
Wang Y, Zhang M, Mujumdar AS (2014) Microwave-assisted drying of foods—equipment, process and product quality. In: Tsotsas E, Mujumdar AS (eds) Modern drying technology. Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, pp 279–315
Zhang W, Mujumdar AS (1992) Deformation and stress analysis of porous capillary bodies during intermittent volumetric thermal drying. Dry Technol 10(2):421–443
Acknowledgements
This work was carried out as a part of the research project No 03/32/DSPB/0705 founded by Poznan University of Technology. The studies on drying of red pepper and raspberries were conducted as a part of the research project No 2014/15/D/ST8/02777 sponsored by the National Science Centre in Poland.
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Musielak, G., Mierzwa, D., Pawłowski, A., Rajewska, K., Szadzińska, J. (2018). Hybrid and Non-stationary Drying—Process Effectiveness and Products Quality. In: Ochowiak, M., Woziwodzki, S., Doligalski, M., Mitkowski, P. (eds) Practical Aspects of Chemical Engineering. Lecture Notes on Multidisciplinary Industrial Engineering. Springer, Cham. https://doi.org/10.1007/978-3-319-73978-6_22
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DOI: https://doi.org/10.1007/978-3-319-73978-6_22
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