Factorial Experiment for the Collecting Device of an Agricultural By-product Collector
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Online ISSN 2234-1862 Print ISSN 1738-1266
ORIGINAL ARTICLE
Factorial Experiment for the Collecting Device of an Agricultural By-product Collector Seok-Joon Hwang
1,2
&
Jeong-Hoon Kim 1 & Ju-Seok Nam
1,2
Received: 10 November 2020 / Revised: 19 November 2020 / Accepted: 22 November 2020 # The Korean Society for Agricultural Machinery 2020
Abstract Purpose This study was conducted to determine the optimum operating conditions for the collecting device of agricultural byproduct collector. Methods A factorial experiment was performed using a test equipment with the collecting device. By targeting apple pruning branches, the collecting ratio for the branches was measured according to the rotational speed (100, 200, and 300 rpm), clearance from the soil surface (− 10, 0, and 10 mm), and forward-moving speed (0.6, 0.8, and 1.0 m/s) of the collecting device. The results were analyzed using mean collecting ratio of the triplicate experiment for each condition. Therefore, the total number of experiment is 81. Results Experimental results show that the collecting ratio was the highest when the collecting device was operated at 200 rpm rotational speed, 0 mm clearance from the soil surface, and 0.6 m/s moving speed. The conditions that ensured a ≥ 99% collecting ratio were 0.6 m/s and 0.8 m/s moving speed, 200 rpm rotational speed, and 0 mm clearance from the soil surface. Conclusions Regarding the field capacity, the optimum operating conditions for the collecting device were determined as 0.8 m/s moving speed, 200 rpm rotational speed, and 0 mm clearance from the soil surface. Keywords Apple pruning branches . Agricultural by-product . Collecting device . Collector
Introduction Fossil fuels have accelerated problems such as the global warming and air pollution. These problems can be solved by reducing greenhouse gas emissions and introducing carbonneutral fuels (Tevini 1990; Han et al. 2009; Kim 2013). Accordingly, the use of solid fuels including pellet fuel, a carbon-neutral fuel, has increased (Lee et al. 2017). The potential quantity of agricultural by-products in the Republic of Korea is estimated at approximately 4,018,000 TOE/year. Among such by-products, rice straw and husk produced from rice farming account for approximately 65.9%, and they are being used as compost or animal feed (Lee and Park 2016). Other agricultural by-products from the * Ju-Seok Nam [email protected] 1
Department of Biosystems Engineering, Kangwon National University, Chuncheon, Republic of Korea
2
Interdisciplinary Program in Smart Agriculture, Kangwon National University, Chuncheon, Republic of Korea
fields and fruit farms are being wasted to the soil or burned and thrown away (Park et al. 2017). This is due to the low mechanization ratio of the field and fruit farming. There are several types of hay collector for the rice farms which can collect byproducts with little manpower. However, the by-products are collected manually in fields or fruit farms, which requires more manpower and increases labor load (Kim et al. 2000; N
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