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      저자 : ( Deoghyun Lee ) (검색결과 2 건)
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      • Design and Performance Analysis of a Mechanical Baler Cutting Machine

        ( Deoghyun Lee ),( Junhyeon Lee ),( Frank Gyan Okyere ),( Gyeongmun Choi ),( Hyeontae Kim ) 한국농업기계학회 2019 한국농업기계학회 학술발표논문집 Vol.24 No.1

        The use of agro waste for biomass production is on the rise in recent times. To achieve a high surface to volume ratio for efficient biomass production, the agro waste material needs to be chopped or cut into pieces. However machines for such purposes are not readily available. The aim of this research was to design and analyze the performance of a baler cutting machine. A baler cutting machine is used to cut and resize plants for biomass production. A3D Mechanical design software (CATIA) was used for the designing of the machine and was subsequently manufactured at the Woosong Engineering Ltd (Jinju, S. Korea). The machine is made of three (3) main parts; the cutting system, the power source and the control system. The cutting system comprises of a 0.05m shaft with six cutting blades spaced at 0.2m apart. The cutting blades is a 0.5m thick plate bent at angle of 30o to the horizontal with a v- shape end sharpened. The cutting blade is of length 0.3m and width 0.1m. The power source is a 3- phase electric motor which connects to the cutting system through a pulley with a belt. The control system is an automated control board that regulates the speed (ground and bed speed). To analyze the efficiency of the machine, corn stalks of various sizes were used. Three ground speeds were used. The theoretical and practical efficiency of the machine was 97% and 91.2% respectively. The machine gave an impressive output with the cutting system giving a good cutting orientation when the moisture content of the corn stalks were high (>60%). This was achieved when with a rotating speed of 1770 rpm.

      • Water Drinking System Design in Pig Barns-Pig’s Neck Angle Based Approach

        ( Elanchezhian Arulmozhi ),( Jayanta Kumar Basak ),( Jihoon Park ),( Fawad Khan ),( Frank Gyan Okyere ),( Yongjin Lee ),( Junhyeon Lee ),( Deoghyun Lee ),( Hyeon Tae Kim ) 한국농업기계학회 2019 한국농업기계학회 학술발표논문집 Vol.24 No.1

        Drinking water is essential for the steady growth of pigs. Comparatively nipple drinker prompts more water intake while more water wastage as opposed to conventional drinking bowls. By fixing the nipple drinkers in right position can ready to diminish over half of water loss. The objective of this examination is to locate the right spot to fixing the nipple drinkers on the basis of neck movement angle of pigs. Three pig barns with group-housed environment which consists of six finishing pigs in every livestock test bed were used as model pig barns. The height to place the drinker calculated by the angle of pig. As indicated by the angle estimation, three treatments were directed with the name of T1 with 30.27<sup>0</sup> angle, T2 with 86<sup>0</sup> angle and T3 with 120.27<sup>0</sup> angle where the angle created by pig. To understand the diurnal drinking pattern of pigs to provide adequate water in peak time, thus a CMOS camera placed on the top roof of a pig barn to monitor number of visits and duration of drinking, however camera additionally used to affirm each pig’s drinking routinely. All the treatment significantly not influence the water intake of pigs (P>0.60) but it emphatically influence the water wastage (P<0.05). The outcome shows that T3 has low dimension water wastage (32%) with higher average daily gain compared to T1 and T2. Additionally, the number of visits near to the drinker and time taken to drink water is affected by the treatments and there is correlation between the number of visits near to the drinker and water wastage (R<sup>2</sup>=0.785). T3 has low number of visits near to the drinker, consequently this treatment may create opportunity for all pigs to drink more in group- housed.

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