Influence of Pulse Flow Drying Air on Paddy Drying with Pneumatic Dryer
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Abstract
The objective of this research was to study the influence of drying air velocity by pulse flow in vertical chamber with pneumatic dryer on paddy drying. The pneumatic dryer prototype was used in this study. has the vertical tube with a diameter of 3.81 cm and height 100 cm as a drying chamber. The drying of 15 kg of Hom Pathum paddy at 22–25% initial wet basis moisture content is tested under the drying air temperature 80ºC until its moisture is 14% wet basis. The test are performed with two different drying air conditions: 1) constant velocity and 2) pulse flow velocity of drying air for study the drying behavior, drying rate (DR), specific energy consumption (SEC), and thermal efficiency of drying. The results showed that drying with pulse flow velocity conditions gives a shorter time, higher drying rate, lower total SEC consumption, and higher thermal efficiency than drying with constant velocity conditions.
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วารสารวิศวกรรมฟาร์มและเทคโนโลยีควบคุมอัตโนมัติ (FEAT Journal) มีกําหนดออกเป็นราย 6 เดือน คือ มกราคม - มิถุนายน และกรกฎาคม - ธันวาคม ของทุกปี จัดพิมพ์โดยกลุ่มวิจัยวิศวกรรมฟาร์มและเทคโนโลยีควบคุมอัตโนมัติ คณะวิศวกรรมศาสตร์มหาวิทยาลัยขอนแก่น เพื่อเป็นการส่งเสริมและเผยแพร่ความรู้ ผลงานทางวิชาการ งานวิจัยทางด้านวิศวกรรมศาสตร์และเทคโนโลยีพร้อมทั้งยังจัดส่ง เผยแพร่ตามสถาบันการศึกษาต่างๆ ในประเทศด้วย บทความที่ตีพิมพ์ลงในวารสาร FEAT ทุกบทความนั้นจะต้องผ่านความเห็นชอบจากผู้ทรงคุณวุฒิในสาขาที่เกี่ยวข้องและสงวนสิทธิ์ ตาม พ.ร.บ. ลิขสิทธิ์ พ.ศ. 2535
References
Liu S and Sakr M. A comprehensive review on passive heat transfer enhancements in pipe exchangers. Renewable and Sustainable Energy Reviews. 2013; 19: 64-81.
Chuwattanakul V and Eiamsa-ard S. Hydrodynamics investigation of pepper drying in a swirling fluidized bed dryer with multiple-group twisted tape swirl generators. Case Studies in Thermal Engineering. 2019; 13: 100389.
Eiamsa-ard P, Piriyarungroj N, Thainpong C and Eiamsa-ard S. A case study on thermal performance assessment of a heat exchanger tube equipped with regularly twisted tapes as swirl generators. Case studies in Thermal Engineering. 2014; 3: 86-102.
Akyurek EF, Gelis K, Sahin B and Manay E. Experimental analysis for heat transfer of nanofluid with wire coil turbulators in a concentric tube heat exchanger. Results in Physics. 2018; 9: 376-89.
Nanan K, Thianpong C, Pimsarn M, Chuwattanakul V and Eiamsa-ard S. Flow and thermal mechanisms in a heat exchanger tube inserted with twisted cross-baffle turbulators. Applied Thermal Engineering. 2017; 114: 130-47.
Skullong S, Promvonge P, Thianpong C and Jayranaiwachira N. Thermal behaviors in a round tube equipped with quadruple perforated-delta-winglet pairs. Applied Thermal Engineering. 2017; 115: 229-43.
Bhuiya MMK, Chowdhury MSU, Saha M and Islam MT. Heat transfer and friction factor characteristics in turbulent flow through a tube fitted with perforated twisted tape inserts. International Communications in Heat and Mass Transfer. 2013; 46: 49-57.
Bhuiya MMK, Sayem ASM, Islam M, Chowdhury MSU and Shahabuddin M. Performance assessment in a heat exchanger tube fitted with double counter twisted tape inserts. International Communications in Heat and Mass Transfer. 2014; 50: 25-33.
Skullong S, Promvonge P, Jayranaiwachira N and Thianpong C. Experimental and numerical heat transfer investigation in a tubular heat exchanger with delta-wing tape inserts. Chemical Engineering and Processing. 2016; 109: 164-77.
Department of Agriculture. Quality and Inspection of Thai Hom Mali Rice. Jirawat express co., ltd. Bangkok Thailand; 2004.
Limpiti S and Changrue V. Effects of Rewetting on Milling Quality of Wet Season Japanese Rice. Journal of Agricultural. 1996; 12(2): 134-139.
AOAC (Association of Official Analytical Chemists). Official Methods of Analysis. 17th ed., Association of Official Analytical Chemists, Gaithersburg, Maryland; 2000.
Saelim N, Treeamnuk T and Treeamnuk K. Development of a Continuous Flow Paddy Dryer with Infrared Radial Radiation Technique. RMUTP Research Journal. 2018; 12(2): 37-46.
Treeamnuk T. Drying and Storage of Agricultural Products. School of Agricultural Engineering, Institute of Engineering, Suranaree University of Technology; 2011.
Wongbubpa N, Treeamnuk K and Treeamnuk T. (2020). Kinematics motion of paddy in hot air pulse flow, The 13th TSAE International Conferences 187, Suranaree University of Technology, Thailand.
Wongbubpa N, Treeamnuk K and Treeamnuk T. Computer Simulation Study of Paddy Motion in Hot Air Drying Chamber, The 22nd TSAE National Conferences; 2021 March 12-14; Khon Kaen, Thailand. Khon Kaen University,. 2021.
Wongbubpa N and Chitsomboon T. Sustain Spouted Bed Paddy Dryer with Internal Grates, The 28th Conference of The Mechanical Engineering Network of Thailand; 2014 October 15-17; Khon Kaen, Thailand. 2014.
Wongbubpa N and Chitsomboon T. (). Effectiveness of The Elbowed Spouted Bed Paddy Dryer, The 29th Conference of The Mechanical Engineering Network of Thailand; 2015 July 1-3; Nakhon Ratchasima, Thailand. 2015.
Wichinthanasarn T, Ritthong W and Sathapornprasath K. Paddy dehydration using Impinging stream dryer combined with Pneumatic dryer, The 25th Conference of The Mechanical Engineering Network of Thailand; 2011 October 19 – 21; Krabi, Thailand. 2011.
