This paper presents the results of a study on mathematical modelling of convection drying of artichoke (Cynara scolymus L.) leaves. Artichoke leaves used for drying experiments were picked from the agricultural faculty experimentation fields on the campus area of Ege University. Chopped artichoke leaves were then used in the drying experiments performed in the laboratory at different air temperatures (40, 50, 60 and 70 °C) and airflow velocities (0.6, 0.9 and 1.2 m s) at constant relative humidity of 15±2%. Drying of artichoke leaves down to 10% wet based moisture content at air temperatures of 40, 50, 60 and 70 °C lasted about 4.08, 2.29, 1.32 and 0.98 h respectively at a constant drying air velocity of 0.6 m s while drying at an air velocity of 0.9 ms took about 3.83, 1.60, 0.96 and 0.75 h. Increasing the drying air velocity up to 1.2 m s at air temperatures of 40, 50, 60 and 70 °C reduced the drying time down to 3.5, 1.54, 1.04 and 0.71 h respectively. Different mathematical drying models published in the literature were used to compare based on the coefficient of multiple determination (R), root mean square error (RMSE), reduced chisquare (χ) and relative deviation modulus (P). From the study conducted, it was concluded that the Midilli et al drying model could satisfactorily explain convection drying of artichoke (Cynara scolymus L.) leaves under the conditions studied.
Bu çalışmada enginar yapraklarının (Cynara scolymus L.) konveksiyonel kuruma karakteristiklerinin matematiksel modellenmesi sunulmuştur. Denemelerde kullanılan enginar yaprakları Ege Üniversitesi yerleşke alanı içerisindeki Ziraat Fakültesi deneme parsellerinden toplanmıştır. Doğranmış enginar yaprakları, laboratuvarda çeşitli sıcaklıklarda (40, 50, 60 ve 70 °C) ve hava hızlarında (0.6, 0.9 ve 1.2 m s1) sabit bağıl nem değerinde (% 15±2) kurutma denemelerinde kullanılmıştır. Enginar yapraklarının 40, 50, 60 ve 70 °C sıcaklıklarda % 10 nem içeriğine (yb) ulaşmaları 0.6 m s1 sabit hava hızında sırasıyla yaklaşık olarak 4.08, 2.29, 1.32 ve 0.98 h sürerken, 0.9 m s1 sabit hava hızında yaklaşık olarak 3.83, 1.60, 0.96 ve 0.75 h sürmüştür. 40, 50, 60 ve 70 °C sıcaklıklarda kurutma havası hızını 1.2 m s1’ye kadar artırmak kuruma süresini sırasıyla 3.5, 1.54, 1.04 ve 0.71 h’e kadar düşürmüştür. Literatürde yer alan çeşitli kuruma modelleri, belirtme katsayısı (R2), ortalama hata kareleri karekökü (RMSE), khikare (χ2) ve mutlak bağıl hata (P) değerleri kullanılarak karşılaştırılmıştır. Yapılan çalışma sonunda denemelerin yapıldığı koşullar altında enginar yapraklarının kurumasını en iyi Midilli vd. kuruma modelinin açıkladığı belirlenmiştir.
Primary Language  English 

Subjects  Science 
Journal Section  Makaleler 
Authors 

Publication Date  October 16, 2014 
Application Date  January 28, 2014 
Acceptance Date  
Published in Issue  Year 2014, Volume 20, Issue 4 
Bibtex  @research article { ankutbd25124, journal = {Journal of Agricultural Sciences}, eissn = {21489297}, address = {}, publisher = {Ankara University}, year = {2014}, volume = {20}, number = {4}, pages = {415  426}, doi = {10.15832/tbd.32211}, title = {Mathematical Modelling of Convection Drying Characteristics of Artichoke (Cynara scolymus L.) Leaves}, key = {cite}, author = {Günhan, Tuncay and Demir, Vedat and Yağcıoğlu, Abdülkadir} } 
APA  Günhan, T. , Demir, V. & Yağcıoğlu, A. (2014). Mathematical Modelling of Convection Drying Characteristics of Artichoke (Cynara scolymus L.) Leaves . Journal of Agricultural Sciences , 20 (4) , 415426 . DOI: 10.15832/tbd.32211 
MLA  Günhan, T. , Demir, V. , Yağcıoğlu, A. "Mathematical Modelling of Convection Drying Characteristics of Artichoke (Cynara scolymus L.) Leaves" . Journal of Agricultural Sciences 20 (2014 ): 415426 <https://dergipark.org.tr/en/pub/ankutbd/issue/1936/25124> 
Chicago  Günhan, T. , Demir, V. , Yağcıoğlu, A. "Mathematical Modelling of Convection Drying Characteristics of Artichoke (Cynara scolymus L.) Leaves". Journal of Agricultural Sciences 20 (2014 ): 415426 
RIS  TY  JOUR T1  Mathematical Modelling of Convection Drying Characteristics of Artichoke (Cynara scolymus L.) Leaves AU  Tuncay Günhan , Vedat Demir , Abdülkadir Yağcıoğlu Y1  2014 PY  2014 N1  doi: 10.15832/tbd.32211 DO  10.15832/tbd.32211 T2  Journal of Agricultural Sciences JF  Journal JO  JOR SP  415 EP  426 VL  20 IS  4 SN  21489297 M3  doi: 10.15832/tbd.32211 UR  https://doi.org/10.15832/tbd.32211 Y2  2022 ER  
EndNote  %0 Journal of Agricultural Sciences Mathematical Modelling of Convection Drying Characteristics of Artichoke (Cynara scolymus L.) Leaves %A Tuncay Günhan , Vedat Demir , Abdülkadir Yağcıoğlu %T Mathematical Modelling of Convection Drying Characteristics of Artichoke (Cynara scolymus L.) Leaves %D 2014 %J Journal of Agricultural Sciences %P 21489297 %V 20 %N 4 %R doi: 10.15832/tbd.32211 %U 10.15832/tbd.32211 
ISNAD  Günhan, Tuncay , Demir, Vedat , Yağcıoğlu, Abdülkadir . "Mathematical Modelling of Convection Drying Characteristics of Artichoke (Cynara scolymus L.) Leaves". Journal of Agricultural Sciences 20 / 4 (October 2014): 415426 . https://doi.org/10.15832/tbd.32211 
AMA  Günhan T. , Demir V. , Yağcıoğlu A. Mathematical Modelling of Convection Drying Characteristics of Artichoke (Cynara scolymus L.) Leaves. J Agr SciTarim Bili. 2014; 20(4): 415426. 
Vancouver  Günhan T. , Demir V. , Yağcıoğlu A. Mathematical Modelling of Convection Drying Characteristics of Artichoke (Cynara scolymus L.) Leaves. Journal of Agricultural Sciences. 2014; 20(4): 415426. 
IEEE  T. Günhan , V. Demir and A. Yağcıoğlu , "Mathematical Modelling of Convection Drying Characteristics of Artichoke (Cynara scolymus L.) Leaves", Journal of Agricultural Sciences, vol. 20, no. 4, pp. 415426, Oct. 2014, doi:10.15832/tbd.32211 