The capacity of a pressure fan can be designed based on the air flow resistance of containers packed with fruits and vegetables in a pressure cooling system. This study was conducted to develop an air flow resistance model that was dependent on changes in the air flow rate and the method of stacking containers. The air flow resistance of a container packed with uniformly shaped balls was 1.5 times greater than the sum of the air flow resistance of a vacant container and that of a wire net container packed with only balls. In addition, the air flow resistance increased exponentially as the width of the stacks increased; however, the air flow resistance did not increase greatly as the length and height of the stacks increased, which indicates that the air flow resistance is primarily influenced by the width of the stack in the air flow direction. The air flow resistance in two lines of stacking was up to 17% less than that of the width of the stack. It was also possible to determine the air flow resistance using a function of the air flow resistance through a single container and develop a prediction model. A prediction model of air flow resistance that is dependent on the stacking method and the air flow resistance of a single container was developed.

양파 간이저장시 무분별한 야적에 의해 발생하는 부패를 감소시켜 양파의 상품성 향상 및 안전저장을 목적으로 적재 방법에 따른 저장성을 조사한 결과는 다음과 같다. 평균기온은 4열 8단에 비해 1열 6단은 1.6~3.2, 1열 8단은 0.5~3.5, 2열 6단은 1.3~.6, 2열 8단은 0.1~2.4, 4열 6단은 0.1~1.8가 낮았고 상대습도는 열수가 많을수록 높았다. 부패율은 4열 8단 16.6%에 비해 1열 6단 11.4%, 2열 6단 11

월동배추(품종 : 동풍)를 에서 저온저장중 선도 유지를 위하여 포장과 적입방법 개선에 대한 효과가 조사되었다. 저장과정중 배추의 상품성을 보았을 때 월동배추는 에 저온 저장한 경우 4개월 이상 저장, 출하가 가능한 것으로 여겨졌다. 포장용기간 저장성은 0.03mm 폴리에칠렌 플라스틱필름에 4포기씩 세로로 적입하여 플라스틱콘테이너에 저장한 경우가 기존의 폴리프로필렌 그물망과 철제파레트를 이용한 경우에 비하여 우수하게 나타났다. MAP 저장시 포장내