초록 ▼

○ 연구결과
다목적 건조기 시뮬레이션 프로그램을 위해 벼, 보리, 옥수수, 콩 및 유채종자의 수확모델 및 건조기 설계에 기초가 되는 물리적 특성, 건조모델 및 품질예측모델을 구명하였으며, 시뮬레이션 프로그램은 MATLAB 7.3.0(R2006b version)을 사용하여 개발하였고 실험을 통해 검증을 하였다.
최적화는 Box의 Complex 알고리즘을 이용하여 벼, 유채종자, 보리, 옥수수 및 콩의 적정 작동조건을 결정하였으며, 설계요인은 건조실 높이 0.5m와 건조실 : 템퍼링실의 비 1:4~6을 고려하여 건조기의 기초

○ 연구결과
다목적 건조기 시뮬레이션 프로그램을 위해 벼, 보리, 옥수수, 콩 및 유채종자의 수확모델 및 건조기 설계에 기초가 되는 물리적 특성, 건조모델 및 품질예측모델을 구명하였으며, 시뮬레이션 프로그램은 MATLAB 7.3.0(R2006b version)을 사용하여 개발하였고 실험을 통해 검증을 하였다.
최적화는 Box의 Complex 알고리즘을 이용하여 벼, 유채종자, 보리, 옥수수 및 콩의 적정 작동조건을 결정하였으며, 설계요인은 건조실 높이 0.5m와 건조실 : 템퍼링실의 비 1:4~6을 고려하여 건조기의 기초 설계 요인을 결정하였다.
용량 70kg 및 20,000kg 다목적 건조기를 설계, 제작하였으며, 기본성능, 제어능력, 건조실험을 통해 평가한 결과 유채종자의 건조속도는 2.0%, w.b./h, 보리는 1.65%, w.b./h 및 벼의 경우 0.98%, w.b./h로 나타났으며, 소요에너지는 기존 건조기에 비하여 10%이상 절감되었으며, 품질은 기존 건조기 동일한 하였다. 비용분석결과 현행 횡류형 건조기보다 우수한 것으로 판명되었다.

Abstract ▼

Ⅳ. Results and suggestions
The results were summarized as follows:
The simulation model to predict the multipurpose dryer characteristics was developed and was validated through the drying tests for rough rice, barley. corn, bean and rapeseed.
By using MATLAB 7.3.0 (R2006b version) to be de

Ⅳ. Results and suggestions
The results were summarized as follows:
The simulation model to predict the multipurpose dryer characteristics was developed and was validated through the drying tests for rough rice, barley. corn, bean and rapeseed.
By using MATLAB 7.3.0 (R2006b version) to be developed simulation program of multipurpose dryer that basic structure was consisted of main program, basic information of five grains program and sub program of thirteen.
The verification of developed simulation model that predicted result was accordance with measured result. That is, R squared value was more than 0.9665 accorded well.
Basic design factor of dryer was determinated that by using Box and Complex algorithm after object function determination of optimization to determinate proper operating conditions about rough rice, rapeseed, barley, corn and bean by considering 0.5m height of drying room and rate of between drying room and tempering room 1:4~6.
The analysis of the drying rate in multipurpose dryer with a capacity of 70kg was higher than circulating cross-flow dryer.
The analysis of performance in multipurpose dryer with a capacity of 20,000kg was performed that drying rate of grain was experimented to 2.0%,w.b./h. of rapeseed, barley 1.65%,w.b./h. and rough rice 0.98%,w.b./h respectively and used energy was reduced more than 10% than before dryer.
Optimal design parameters and operational conditions to minimize drying energy consumptions were determined by optimization methods.
Overall, multipurpose dryer was proved to good dryer than circulating cross-flow dryer.