Drying strategies for fluidized-bed drying of paddy

บทความในวารสาร

ผู้เขียน/บรรณาธิการ

กลุ่มสาขาการวิจัยเชิงกลยุทธ์

ไม่พบข้อมูลที่เกี่ยวข้อง

รายละเอียดสำหรับงานพิมพ์

รายชื่อผู้แต่ง: Tirawanichakul S., Prachayawarakorn S., Varanyanond W., Soponronnarit S.

ผู้เผยแพร่: De Gruyter

ปีที่เผยแพร่ (ค.ศ.): 2009

วารสาร: International Journal of Food Engineering (1556-3758)

Volume number: 5

Issue number: 2

นอก: 1556-3758

eISSN: 1556-3758

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-67650504187&doi=10.2202%2f1556-3758.1401&partnerID=40&md5=1d95f94129a28252dd68470215109d50

ภาษา: English-Great Britain (EN-GB)

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บทคัดย่อ

The main objective of this work was to determine an effective moisture diffusivity of long grain rice during fluidized-bed drying (FBD) with inlet drying temperatures ranging of 40-150ฐC by 10ฐC/step and to investigate the specific energy consumption of the FBD process. Three initial moisture contents of the local indica paddy were set at 25.0, 28.8 and 32.5% dry-basis. The experimental results of thin-layer fluidized-bed drying for the long grain rice variety were determined and statistically analyzed by non-linear regression method. The results showed that an effective diffusion coefficient was highly dependent on the drying temperature, compared to initial moisture content. Consequently, the mathematical simulation of FBD, using the developed thin-layer drying mentioned above, was evaluated and used for predicting the paddy drying system. The simulated value of energy consumption in each of the drying conditions was comparatively simulated. The simulated results showed that a FBD with low temperatures and low initial moisture content gave higher specific energy consumption than drying with high temperatures and high initial moisture contents. The total specific energy consumption increased with a decreased fraction of re-circulated outlet drying air. According to the simulation results and our previous work, the conclusion is that the long grain paddy drying with FBD technique under a high initial moisture content and drying air temperature over 100ฐC is the good drying condition for recommendation. ฉ 2009 The Berkeley Electronic Press.

คำสำคัญ

Long grain paddy, Non-glutinous rice