한국농업기계학회:학술대회논문집 (Proceedings of the Korean Society for Agricultural Machinery Conference)
- 한국농업기계학회 1993년도 Proceedings of International Conference for Agricultural Machinery and Process Engineering
- /
- Pages.433-442
- /
- 1993
THE EFFECT OF COOLSTORE DESIGN AND OPERATION ON AIR RELATIVE HUMIDITY
- Amos, N.D. (Department of Agricultural Engineering Massey University) ;
- Cleland, D.J. (Process and Environmental Technology, Massey University) ;
- Cleland, A.C. (Process and Environmental Technology, Massey University) ;
- Banks, N.H. (Process and Environmental Plant Science, Massey University)
- 발행 : 1993.10.01
초록
Coolstore air relative humidity (RH) is an important factor affecting the quality of horticultural products, particularly via product moisture loss. RH also has an important effect on the performance of the refrigeration evaporators and can affect the strength of paper-based packaging materials. In a large New Zealand apple coolstore, RH increased from about 75% early in season to 90% at the end, as activities in the coolstore and external conditions changed. A steady-state analysis of sensible and latent heat entry and heat removal during four typical operational periods over the season was carried out. Predicted RH was in good agreement with measured dat. For the coolstore studied, evaporator surface area and the occurrence of pre-cooling within the coolstore were the design and operational factors having greatest effect on RH. Door protection and management, and floor insulation were the next more significant factors. The method of analysis has more general application and ould be used in a variety of situations so that design for optimum RH can be performed systematically.