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- Title
MEDIATION OF PEANUT MOISTURE CONTENT AND SYSTEM OPTIMIZATION FOR IMPROVED SHELLING PERFORMANCE OF SMALL PEANUT SHELLER.
- Authors
Jiannan Wang; Qishuo Ding; Zhichao Hu; Huanxiong Xie; Minji Liu; Baoliang Peng; Xiaoyuan Chi
- Abstract
Improvement of peanut shelling performance for smallholders is challenging due to the numerous influential factors involved with both machinery and peanut properties. A Box-Behnken design (BBD) and response surface method (RSM) were used to simplify the experimental investigations. Sequential laboratory observations were made on wettingand-drying pretreatments, single-factor tests, multiple-factor couplings, modeling and significance analysis, response surface analysis, and system optimization. Results showed that wetting-and-drying pretreatment can effectively mediate the physical properties of peanut pods for unbalanced moisture contents between the peanut shell and kernel, contributing to improved mechanical damage rate (MDR) and shelling efficiency (SE). Statistical analysis of MDR and SE models identified the rated effects as: moisture content (MC) > cylinder speed (CS) > drying time (DT) for MDR, and DT > CS > MC for SE. The coupling effects among the variables were: MC x CS > MC x DT > DT x CS for MDR, and DT x CS > MC x DT > MC x CS for SE. System optimization with RSM provided the optimal combination as MC = 11.63%, DT = 26.87 min, and CS = 234.78 rpm. This combination resulted in a minimum MDR of 3.94% and a maximum SE of 97.17%. The optimized results were evaluated in production trials, revealing the mean values of MDR and SE as 4.18% and 93.87%, respectively. It is suggested that a suitable wetting-and-drying pretreatment can be a powerful means to enhance the shelling performance of small shellers.
- Subjects
MATHEMATICAL optimization; PEANUT hulls; PEANUTS; MOISTURE; SURFACE analysis
- Publication
Journal of the ASABE, 2022, Vol 65, Issue 2, p295
- ISSN
2769-3295
- Publication type
Article
- DOI
10.13031/ja.14742