Study of influence factors of Temperature and Relative humidity Stability  in Airtight Culture Relics Showcase

Guo Xiaoguang, Ma Shengtao, Zhou Huahua, Zhangaihua

(Tianjin CNRO Science ＆Technology CO.,Ltd; Emperor Qinshihuang’s Mausoleum Sit Museum)

Abstract: Temperature and humidity are two of the most important factors that influence the preservation of culture relics. In this article, it takes seven months to get continuous test data in static state of an airtight showcase in Emperor Qinshihuang’s Mausoleum Sit Museum, Which is made by Tianjin CNRO Company. It shows that humidity stability depends on the air impermeability and relative humidity difference between inside and outside of the showcase. A good airtight can effectively reduce interference of ambient humidity. And the relative humidity difference between inside and outside of the showcase is less, the more stable is the relative humidity inside of the showcase. Relative humidity of airtight space mainly affected by environment temperature in short term, and a good control of temperature reduces fluctuation of relative humidity effectively. Long-term storage needs the help of a humidity control device which can work periodically, and because of good airtight, no continuous work can keep relative humidity stable, with energy saved.

Keywords: Relative humidity; Temperature; Showcase; Preservation of cultural relics

引言

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