03175nas|a2200397 a 4500 20260818090624.0 100602s2009 th uu|m rtt 0| a1eng d .b12078050 AIT Thesis no. AE-09-04 Sahapat Chalachai Development of a coconut husk crusher and cutter Pathum Thani, Thailand : Asian Institute of Technology, 2009 74 leaves : ill. Thesis ; no. AE-09-04 A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Agricultural Systems and Engineering, School of Environment, Resources and Development Thesis (M.Eng.) - Asian Institute of Technology, 2009 The use of coconut husk as an orchid growing media has been increasing because of its low cost and availability. Media preparation mainly includes crushing and cutting of coconut husk. These activities, which are time consuming, unpleasant, dangerous and strenuous, need to be mechanized. Almost all of the orchid cultivation operations on medium to large scale farms are not yet mechanized in Thailand. Also, because of an existing labor shortage for agricultural work in Thailand, manual preparation of growing media often causes delays. Therefore, it was necessary to mechanize the media preparation operations. The new machines have three components: conveyer unit, crushing unit and cutting unit. These were designed for the prototype and tested under different conditions. Before starting the actual test, all the physical properties of coconut husk were measured, then all the samples were tested for the performance of the conveyer unit and crushing unit using different motor speeds (1,200, 1,300, 1,400, 1,480 and 1,500 rpm). After testing, it was observed that the speed ratio of the conveyer unit, crushing unit and cutting unit should be 1 :0.75:46 because it requires the least amount of power. Therefore, the recommended motor speed is between 1,400-1,500 rpm as this speed results in 82.5% of good husk, and uses least power. Coconut Cutting machines Salokhe, Vilas M., Chairperson Jayasuriya, H.P.W., Examination Committee Soni, Peeyush, Examination committee Roongruang Kalsirisilp, Examination committee Thailand (H.M. Queen), Scholarship donor Asian Institute of Technology. Thesis ; no. AE-09-04 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B01733 .b12078050 mnait u 240329 0 100602 m a u 0 mnait mnait 20 Barcode : 30050120575922 CREATED : 2007-06-08 RECORD # : i12636903 LPATRON : 1024613 LCHKIN : 2014-06-05 # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 3 TOT RENEW : 1 Barcode : 30050120575955 CREATED : 2007-06-08 RECORD # : i12636915 LPATRON : 1019658 LCHKIN : 2013-03-10 # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 2 TOT CHKOUT : 3 TOT RENEW : 0 28688 28688 0 0 0 0 MAIN MAIN mnait 2026-08-18 50.00 0 AIT Thesis no. AE-09-04 30050120575922 2026-08-18 09:06:24 1 2026-08-18 20 0 0 0 0 MAIN MAIN mnait 2026-08-18 50.00 0 AIT Thesis no. AE-09-04 30050120575955 2026-08-18 09:06:24 2 2026-08-18 20