Weight loss that influences quality and farmer incomes is affected by the storage environment of agricultural products. The interior of storage should be maintained at high humidity to prevent the weight loss of products which contain a lot of moisture. The research had constantly proceeded with change in the heat exchanger surface areas, humidity systems, and weight loss forecast to maintain high humidity within storage. Relative humidity that exerts an effect weight loss of crop is influenced by storage temperature, leak state, and volume of product. When weight loss is predicted, different conditions of these factors are derived. In case of CA storage, ways of forecasting the weight loss become easier compared to cold storage due to sealed storage with external environment during storage period. In this study, apples were stored in purge-type CA storage and weight loss has been predicted by using operating characteristics and environmental conditions. As a result, humidity variation in the storage fluctuates with the operation of the unit-cooler. Furthermore, unit-cooler operation factor is influenced by outside temperature and respiration heat. Prediction value of weight loss according to temperature and humidity has been most accurately predicted. Prediction value through defrosting water measured shows unit-cooler work quality. K-value needs verification to calculate the VPD method.

서 론
 재료 및 방법
 결과 및 고찰
 요 약
 감사의 글
 References

• 박천완(국립농업과학원 농업공학부, Division of Postharvest Engineering, National Institute of Agricultural Sciences) | Chun Wan Park Corresponding author
• 박석호(국립농업과학원 농업공학부, Division of Postharvest Engineering, National Institute of Agricultural Sciences) | Seok Ho Park
• 김진세(국립농업과학원 농업공학부, Division of Postharvest Engineering, National Institute of Agricultural Sciences) | Jin Se Kim
• 최동수(국립농업과학원 농업공학부, Division of Postharvest Engineering, National Institute of Agricultural Sciences) | Dong Soo Choi
• 김용훈(국립농업과학원 농업공학부, Division of Postharvest Engineering, National Institute of Agricultural Sciences) | Yong Hun Kim
• 이수장(국립농업과학원 농업공학부, Division of Postharvest Engineering, National Institute of Agricultural Sciences) | Su Jang Lee