摘要
针对目前食品真空冷冻干燥设备的设计、制造技术与结构问题,结合真空冷冻干燥食品的加工生产实际对冷阱与干燥炉配合、加热棚板的传热方式、加热系统设计等进行了研究分析。在此基础上,对于接触导热和辐射传热进行对比实验。研究结果表明,对于加热棚板与铝托盘的传热,辐射传热优于接触导热。
The match of cryotrap and desiccator, the way of heat transfer on heating board, and heat system design were analyzed to solve the problems of design, manufacturing technique, and structure of the food freeze sublimation drying equipments in the freeze- dried food production process. The comparison experiment for conduction and radiation heat transfer was conducted. The result shows that radiation heat transfer is better than conduction heat transfer between heating board and aluminum tray.
出处
《制冷学报》
CAS
CSCD
北大核心
2006年第5期31-35,共5页
Journal of Refrigeration
关键词
热工学
传热
结构分析
升华干燥
真空
Pyrology
Heat transfer
Construction Analysis
Sublimation drying
Vacuum
