〔報告〕電動集密書架の定期的散開による環境制御効果の検討 [in Japanese] Study on the Environmental Control of the Stack Room in a Closed Library by Periodically Moving Shelves [in Japanese]
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In addition to the open library the Institute has a closed library where around 300,000 books and magazines are stored.There is a concern that books in the closed library on the third floor often suffer from mold growth,although the measured temperature and humidity are within an acceptable range due to air conditioning operating from 9o'clock to 18 o'clock.Last year,after detection of mold growth,it was found that there was a temperature difference between inside and outside the stack,although bookshelves are set to have an average space of about 10cm at the end of work time to promote air draft. Thus, an experiment was conducted to eliminate the temperature difference between shelves when they were electrically moved periodically before work time. Temperature and humidity were measured inside and outside the stack.It was found that relative humidity increased as temperature increased inside, while relative humidity decreased as temperature increased outside. It was also found that the maximum temperature difference inside the stack was about 4degrees centigrade.In order to bring the environment inside closer to the environment outside, a new way was made to move the shelves electrically at intervals of one minute. It was found that the environment inside the stack could be brought close to the condition of environment outside the stack.This work was supported by JSPS KAKENHI Grant Number 15H02786.
- 保存科学 = Science for conservation
保存科学 = Science for conservation (57), 145-157, 2018-03-23