Drying of High-Moisture Paddy Using a Combined Impinging Stream and Pneumatic Drying System

บทความในวารสาร

ผู้เขียน/บรรณาธิการ

กลุ่มสาขาการวิจัยเชิงกลยุทธ์

ไม่พบข้อมูลที่เกี่ยวข้อง

รายละเอียดสำหรับงานพิมพ์

รายชื่อผู้แต่ง: Nimmol C., Sathapornprasath K., Devahastin S.

ผู้เผยแพร่: Taylor and Francis Group

ปีที่เผยแพร่ (ค.ศ.): 2012

วารสาร: Drying Technology (0737-3937)

Volume number: 30

Issue number: 16

หน้าแรก: 1854

หน้าสุดท้าย: 1862

จำนวนหน้า: 9

นอก: 0737-3937

eISSN: 1532-2300

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84869802663&doi=10.1080%2f07373937.2012.713070&partnerID=40&md5=8bf5ce29c8a6af118e5ce6556289d127

ภาษา: English-Great Britain (EN-GB)

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บทคัดย่อ

A system combining the principles of impinging stream drying and pneumatic drying (ISD-PD) for high-moisture paddy was developed to increase the energy efficiency of the drying process. The effects of inlet air temperature and paddy feed flow rate on the overall performance, in terms of the volumetric water evaporation rate and volumetric heat transfer coefficient, and energy consumption of the system were then investigated. The dried paddy quality in terms of the head rice yield and whiteness was also assessed. The results were compared with those obtained from a system consisting only of a pneumatic dryer. It was found that an increase in the inlet air temperature and paddy feed flow rate led to an increase in the volumetric water evaporation rate. The volumetric heat transfer coefficient varied insignificantly with the inlet air temperature but increased with the paddy feed flow rate. The moisture content of paddy was reduced from its original value by 6.6 to 9.7% (db) within a very short period of time. The mean residence time of the paddy was increased by 33 to 41% via the use of the ISD-PD system, leading to moisture reduction rates 55-166% higher than those for the pneumatic dryer. The head rice yield decreased with an increase in the inlet air temperature and paddy feed flow rate. On the other hand, the effects of inlet air temperature and paddy feed flow rate on whiteness was not significant. ฉ 2012 Copyright Taylor and Francis Group, LLC.

คำสำคัญ

Flash dryer, Head rice yield, specific energy consumption, Volumetric heat transfer coefficient, Volumetric water evaporation rate, Whiteness