Pulsed air jet impingement drying characteristics of winter jujube slices
The drying curves, moisture effective diffusivity and drying activation energy of winter jujube slices were here investigated at different drying temperatures (55, 60, 65, 70, 75, and 80°C), wind speeds (6, 7, 8, 9, and 10 m/s) and pulsation rates (rotatational speed of material disk: 4, 5.5, and 7...
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| Format: | Article |
| Language: | English |
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Czech Academy of Agricultural Sciences
2018-08-01
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| Series: | Czech Journal of Food Sciences |
| Subjects: | |
| Online Access: | https://cjfs.agriculturejournals.cz/artkey/cjf-201804-0009_pulsed-air-jet-impingement-drying-characteristics-of-winter-jujube-slices.php |
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| author | Shi-Yu WEI Gao WANG Yong HUANG Rong-Guang ZHU Qiang WANG Xiang-Nan ZHANG Yu-Xue CAO Xue-Dong YAO |
| author_facet | Shi-Yu WEI Gao WANG Yong HUANG Rong-Guang ZHU Qiang WANG Xiang-Nan ZHANG Yu-Xue CAO Xue-Dong YAO |
| author_sort | Shi-Yu WEI |
| collection | DOAJ |
| description | The drying curves, moisture effective diffusivity and drying activation energy of winter jujube slices were here investigated at different drying temperatures (55, 60, 65, 70, 75, and 80°C), wind speeds (6, 7, 8, 9, and 10 m/s) and pulsation rates (rotatational speed of material disk: 4, 5.5, and 7 rpm) in a single-factor experiment design. A mathematical model of pulsed air-jet impingement drying for winter jujube slices was fitted and verified. The results showed that the entire drying process could be described as falling rate drying; the moisture effective diffusivity was in the range 1.52-4.93 × 10-9 m2/s and increased with increasing drying temperature, wind speed and pulsation rate. The drying activation energy was 43.9 kJ/mol as determined using the Arrhenius equation. According to the statistical parameters of the correlation coefficient (R2), root mean square error (RMSE) and the sum of squared errors (SSE), the modified Page model was selected as best for representing the correlation between moisture ratio and drying time. |
| first_indexed | 2024-04-10T08:32:20Z |
| format | Article |
| id | doaj.art-181c662cd382495ba79ed701e66f446e |
| institution | Directory Open Access Journal |
| issn | 1212-1800 1805-9317 |
| language | English |
| last_indexed | 2024-04-10T08:32:20Z |
| publishDate | 2018-08-01 |
| publisher | Czech Academy of Agricultural Sciences |
| record_format | Article |
| series | Czech Journal of Food Sciences |
| spelling | doaj.art-181c662cd382495ba79ed701e66f446e2023-02-23T03:28:31ZengCzech Academy of Agricultural SciencesCzech Journal of Food Sciences1212-18001805-93172018-08-0136432933710.17221/258/2017-CJFScjf-201804-0009Pulsed air jet impingement drying characteristics of winter jujube slicesShi-Yu WEI0Gao WANG1Yong HUANG2Rong-Guang ZHU3Qiang WANG4Xiang-Nan ZHANG5Yu-Xue CAO6Xue-Dong YAO7College of Mechanical and Electrical Engineering, Shihezi University, Shihezi,Institute of Agricultural Engineering, Anhui Academy of Agricultural Sciences, Hefei; P.R. ChinaCollege of Mechanical and Electrical Engineering, Shihezi University, Shihezi,College of Mechanical and Electrical Engineering, Shihezi University, Shihezi,College of Mechanical and Electrical Engineering, Shihezi University, Shihezi,College of Mechanical and Electrical Engineering, Shihezi University, Shihezi,College of Mechanical and Electrical Engineering, Shihezi University, Shihezi,College of Mechanical and Electrical Engineering, Shihezi University, Shihezi,The drying curves, moisture effective diffusivity and drying activation energy of winter jujube slices were here investigated at different drying temperatures (55, 60, 65, 70, 75, and 80°C), wind speeds (6, 7, 8, 9, and 10 m/s) and pulsation rates (rotatational speed of material disk: 4, 5.5, and 7 rpm) in a single-factor experiment design. A mathematical model of pulsed air-jet impingement drying for winter jujube slices was fitted and verified. The results showed that the entire drying process could be described as falling rate drying; the moisture effective diffusivity was in the range 1.52-4.93 × 10-9 m2/s and increased with increasing drying temperature, wind speed and pulsation rate. The drying activation energy was 43.9 kJ/mol as determined using the Arrhenius equation. According to the statistical parameters of the correlation coefficient (R2), root mean square error (RMSE) and the sum of squared errors (SSE), the modified Page model was selected as best for representing the correlation between moisture ratio and drying time.https://cjfs.agriculturejournals.cz/artkey/cjf-201804-0009_pulsed-air-jet-impingement-drying-characteristics-of-winter-jujube-slices.phpdrying activation energydrying modelmoisture effective diffusivitypulsed air jet impingementwinter jujube slices |
| spellingShingle | Shi-Yu WEI Gao WANG Yong HUANG Rong-Guang ZHU Qiang WANG Xiang-Nan ZHANG Yu-Xue CAO Xue-Dong YAO Pulsed air jet impingement drying characteristics of winter jujube slices Czech Journal of Food Sciences drying activation energy drying model moisture effective diffusivity pulsed air jet impingement winter jujube slices |
| title | Pulsed air jet impingement drying characteristics of winter jujube slices |
| title_full | Pulsed air jet impingement drying characteristics of winter jujube slices |
| title_fullStr | Pulsed air jet impingement drying characteristics of winter jujube slices |
| title_full_unstemmed | Pulsed air jet impingement drying characteristics of winter jujube slices |
| title_short | Pulsed air jet impingement drying characteristics of winter jujube slices |
| title_sort | pulsed air jet impingement drying characteristics of winter jujube slices |
| topic | drying activation energy drying model moisture effective diffusivity pulsed air jet impingement winter jujube slices |
| url | https://cjfs.agriculturejournals.cz/artkey/cjf-201804-0009_pulsed-air-jet-impingement-drying-characteristics-of-winter-jujube-slices.php |
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