An Experimental Study on Drying of Pistacia Terebinthus in a Fixed Bed Dryer


Balbay A., Ulker H., Sahin Ö.

FDMP-FLUID DYNAMICS & MATERIALS PROCESSING, cilt.9, sa.1, ss.1-10, 2013 (ESCI) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 9 Sayı: 1
  • Basım Tarihi: 2013
  • Dergi Adı: FDMP-FLUID DYNAMICS & MATERIALS PROCESSING
  • Derginin Tarandığı İndeksler: Emerging Sources Citation Index (ESCI), Scopus
  • Sayfa Sayıları: ss.1-10
  • Anahtar Kelimeler: drying, heat transfer, bittim nut
  • İstanbul Teknik Üniversitesi Adresli: Evet

Özet

In this study, drying behaviours of the outer shell peeled Bittim (Pistacia terebinthus) with initial moisture content of 42.2% (dry basis (d.b)) was investigated in a novel fixed bed drying system. The drying experiments were performed at different temperatures (40 degrees C, 60 degrees C and 80 degrees C), air velocities (0.5 m/s and 1 m/s) and weights (30 g and 40 g). A constant rate period was not observed in the drying of bittims; all the drying process occurred in falling rate period. Three models in literature were selected to fit the experimental data. The fit quality of models was evaluated using the coefficient of determination (R-2), sum square error (SSE) and root mean square error (RMSE). Balbay and Sahin model has a good agreement with the experimental data and gave the best results for bittims in a fixed bed system.