000			03044nam a22003257a 4500
003			OSt
005			20250718151604.0
008			250718b |||||||| |||| 00| 0 eng d
040			_aTUPM _bEnglish _cTUPM _dTUPM _erda
050			_aBTH TJ 145 _bV35 2025
100			_aValencia, Kenjie A. _eauthor
245			_aDesign and development of a semi-automatic broomstick-making machine of fresh and dried coconut leaves with rachis dual cutter and dust collector/ _cKenjie A. Valencia, Lalaine C. Lacambra, John Hyskao R. Nati, Theresa Anjelica Danielle B. Rafols, and Marie Andrea C. Rodriguez.--
260			_aManila: _bTechnological University of the Philippines, _c2025.
300			_ax, 102pages: _c29cm.
336			_2rdacontent
337			_2rdamedia
338			_2rdacarrier
500			_aBachelor's thesis
502			_aCollege Of Engineering.-- _bBachelor of science in mechanical engineering: _cTechnological University of the Philippines, _d2025.
504			_aIncludes bibliographic references and index.
520			_aThe Philippines, as the second-largest producer of coconut products, utilizes every part of the coconut plant for sustainable industrial use. One such application is the production of broomsticks from coconut leaves by extracting the midribs. This study developed a semi-automatic coconut broomstick-making machine to improve production efficiency and reduce the limitations of manual labor. The machine features a dual cutter, rubber rollers (in place of abrasives), feeder guide, dust collector, and chain and gear transmission systems. The machine was evaluated using fresh and dried coconut leaves to measure production rate, de-leafing efficiency, and dust collection effectiveness. It processed 15 fresh leaflets per minute with 68.89% peeling efficiency and 18.67 dried leaflets per minute with a lower 51.79% efficiency. Dust collection was effective at 83.97%, though minor leakage was noted. The machine showed stable performance at batch level, de-leafing around 23 of 30 leaflets per cycle, though it fell short of the target rates of 20 fresh and 25 dried midribs per minute due to feeder and roller limitations. Compared to reference machines, the prototype showed similar or better feeding efficiency but lower de-leafing success, particularly against De Vicente et al.’s model. However, it remains a safer and faster alternative to manual processing. Economic analysis showed strong viability, with profit margins exceeding 38% and a payback period under 212 days. Recommended improvements include adjusting brush clearance, sealing dust chamber gaps, integrating a scraper to prevent jams, and widening feeder slots to enhance throughput and reliability.
650			_aCoconut leaflets
650			_aCoconut broomstick
650			_aCoconut midribs
700			_aLacambra, Lalaine C. _eauthor
700			_aLacambra, Lalaine C. _eauthor
700			_aLacambra, Lalaine C. _eauthor
700			_aRodriguez, Marie Andrea C. _eauthor
942			_2lcc _cBTH COE _n0
999			_c30468 _d30468