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A contribution to the development of moisture measuring of vacuum-dried hygroscopic materials

Ante Čikić ; Technical College in Bjelovar, Trg Eugena Kvaternika 4, 43000 Bjelovar, Croatia
Ivan Samardžić ; J. J. Strossmayer University of Osijek, Mechanical Engineering Faculty in Slavonski Brod, Trg Ivane Brlić Mažuranić 2, 35000 Slavonski Brod, Croatia
Antun Stoić ; J. J. Strossmayer University of Osijek, Mechanical Engineering Faculty in Slavonski Brod, Trg Ivane Brlić Mažuranić 2, 35000 Slavonski Brod, Croatia

Puni tekst: engleski, pdf (3 MB) str. 137-145 preuzimanja: 207* citiraj
APA 6th Edition
Čikić, A., Samardžić, I. i Stoić, A. (2013). A contribution to the development of moisture measuring of vacuum-dried hygroscopic materials. Tehnički vjesnik, 20 (1), 137-145. Preuzeto s https://hrcak.srce.hr/97491
MLA 8th Edition
Čikić, Ante, et al. "A contribution to the development of moisture measuring of vacuum-dried hygroscopic materials." Tehnički vjesnik, vol. 20, br. 1, 2013, str. 137-145. https://hrcak.srce.hr/97491. Citirano 20.10.2019.
Chicago 17th Edition
Čikić, Ante, Ivan Samardžić i Antun Stoić. "A contribution to the development of moisture measuring of vacuum-dried hygroscopic materials." Tehnički vjesnik 20, br. 1 (2013): 137-145. https://hrcak.srce.hr/97491
Harvard
Čikić, A., Samardžić, I., i Stoić, A. (2013). 'A contribution to the development of moisture measuring of vacuum-dried hygroscopic materials', Tehnički vjesnik, 20(1), str. 137-145. Preuzeto s: https://hrcak.srce.hr/97491 (Datum pristupa: 20.10.2019.)
Vancouver
Čikić A, Samardžić I, Stoić A. A contribution to the development of moisture measuring of vacuum-dried hygroscopic materials. Tehnički vjesnik [Internet]. 2013 [pristupljeno 20.10.2019.];20(1):137-145. Dostupno na: https://hrcak.srce.hr/97491
IEEE
A. Čikić, I. Samardžić i A. Stoić, "A contribution to the development of moisture measuring of vacuum-dried hygroscopic materials", Tehnički vjesnik, vol.20, br. 1, str. 137-145, 2013. [Online]. Dostupno na: https://hrcak.srce.hr/97491. [Citirano: 20.10.2019.]
Puni tekst: hrvatski, pdf (3 MB) str. 137-145 preuzimanja: 452* citiraj
APA 6th Edition
Čikić, A., Samardžić, I. i Stoić, A. (2013). Doprinos razvoju mjerenja vlage higroskopnih materijala sušenih u vakuumu. Tehnički vjesnik, 20 (1), 137-145. Preuzeto s https://hrcak.srce.hr/97491
MLA 8th Edition
Čikić, Ante, et al. "Doprinos razvoju mjerenja vlage higroskopnih materijala sušenih u vakuumu." Tehnički vjesnik, vol. 20, br. 1, 2013, str. 137-145. https://hrcak.srce.hr/97491. Citirano 20.10.2019.
Chicago 17th Edition
Čikić, Ante, Ivan Samardžić i Antun Stoić. "Doprinos razvoju mjerenja vlage higroskopnih materijala sušenih u vakuumu." Tehnički vjesnik 20, br. 1 (2013): 137-145. https://hrcak.srce.hr/97491
Harvard
Čikić, A., Samardžić, I., i Stoić, A. (2013). 'Doprinos razvoju mjerenja vlage higroskopnih materijala sušenih u vakuumu', Tehnički vjesnik, 20(1), str. 137-145. Preuzeto s: https://hrcak.srce.hr/97491 (Datum pristupa: 20.10.2019.)
Vancouver
Čikić A, Samardžić I, Stoić A. Doprinos razvoju mjerenja vlage higroskopnih materijala sušenih u vakuumu. Tehnički vjesnik [Internet]. 2013 [pristupljeno 20.10.2019.];20(1):137-145. Dostupno na: https://hrcak.srce.hr/97491
IEEE
A. Čikić, I. Samardžić i A. Stoić, "Doprinos razvoju mjerenja vlage higroskopnih materijala sušenih u vakuumu", Tehnički vjesnik, vol.20, br. 1, str. 137-145, 2013. [Online]. Dostupno na: https://hrcak.srce.hr/97491. [Citirano: 20.10.2019.]

Sažetak
Dehydration of hygroscopic materials, especially fruit (blueberries, blackberries, raspberries, etc.) and some types of vegetables in vacuum dehydrators by means of radiation at low temperatures preserves their original quality and medicinal value. Experimental research has been carried out, whereby the moisture reduction of vacuum-dried blueberry fruits was measured by applying the capacitive measuring method, in order to check the method and contribute to possible development of applicative devices. A real vacuum chamber with radiating plate electric heaters and additional functional and regulation equipment was used. Measuring sensors were projected and made, and a measuring device was assembled and programmed. By changing very low values of capacitance, the possibility of measuring moisture reduction in blueberry fruits during drying was confirmed. A close connection between the regulation precision of working parameters (subpressure, temperature) in the chamber and the accuracy of measuring the material moisture was underlined. By using an interdigital sensor acceptable sensitivity in measuring the moisture of dried material was achieved. Guidelines for further research and possible development of an applicable measuring device were suggested.

Ključne riječi
blueberry; capacitive measuring; drying by means of radiation; interdigital sensor; moisture measuring; vacuum chamber

Hrčak ID: 97491

URI
https://hrcak.srce.hr/97491

[hrvatski]

Posjeta: 938 *