Factorial Experiment for Air Blower of the Pepper Harvester
- PDF / 1,397,209 Bytes
- 10 Pages / 595.276 x 790.866 pts Page_size
- 28 Downloads / 192 Views
Online ISSN 2234-1862 Print ISSN 1738-1266
ORIGINAL ARTICLE
Factorial Experiment for Air Blower of the Pepper Harvester Seo-Yong Shin 1 & Dae-Cheol Kim 1,2 & Young-Sun Kang 3 & Yongjin Cho 1,2 Received: 17 June 2020 / Revised: 9 September 2020 / Accepted: 11 September 2020 # The Korean Society for Agricultural Machinery 2020
Abstract Purpose The present study intended to determine the optimal separating factors of the self-propelled pepper harvester. Methods The separating factors were rotational speed of 1600, 1800, and 2000 rpm; the slope angle of 34, 41, and 48 degrees; and the separating number of wind guides at the outlet of the air blower. The resulting performance of the pepper harvester was appraised by analyzing the rates of pepper separation and foreign materials in leaves. Results The rates of pepper separation tended to be declining according to the number of outlet guides in operation. The higher levels of speed of rotation and slope angle rendered higher rates of separation of foreign materials. Under the condition of the rotation speed of 1600 rpm with the operation of three wind guides, the rate of separation of foreign materials appeared as 29.9% lower than the case of operation of no wind guides, and the changes in the rate of separation foreign matters with the slope angle varied according to increasing speed of rotation, appeared negligent. Conclusions It was concluded that the optimal condition of operation comprising the rotation speed of 2000 rpm and 34° of slope angle of air blower, and simultaneous operation of three wind guides at the outlet thereof, can return over 95% of the rate of pepper separation in the case of less than 5% of the rate of mixing with foreign materials. Thus, the optimal combination of operating conditions needs to be complemented through actual field tests of the pepper harvester. Keywords Air blower . Pepper harvester . Performance evaluation . Separation of foreign materials . Separation system . Winnowing machine
Introduction Pepper is currently used for diverse kinds of foods as a condiment, for which the capsaicin contained therein flavors the pungent hot-taste. It is processed into diverse kinds of foods, and the unripened green peppers and ripened red peppers occupy most part of domestic consumption. The domestic area of cultivation of peppers has been decreasing by 57.5%, from 74,471 ha in 2000 to 31,644 ha in 2019, whereas the cost of production of peppers per ha increased by more than three * Yongjin Cho [email protected] 1
Department of Bioindustrial Machinery Engineering, Jeonbuk National University, Jeonju 54896, Republic of Korea
2
Institute for Agricultural Machinery & ICT Convergence, Jeonbuk National University, Jeonju 54896, Republic of Korea
3
Research & Development Institute, Tongyang Moolsan Co., Ltd., Gongju 32530, Republic of Korea
times, from 1,126,000 KRW in 2000 to 3,490,000 KRW in 2019 (KOSTAT 2019). Mechanization of harvesting works of peppers has been studied so far to reduce the production cost from the cultivation of peppers, y
Data Loading...
