Humidity Data for 9975 Shipping Packages with Softwood Fiberboard [electronic resource]

• Ngôn ngữ: eng
• Ký hiệu phân loại: 100 Philosophy, parapsychology and occultism, psychology
• Thông tin xuất bản: Washington, D.C. : Oak Ridge, Tenn. : United States. Department of Energy. Office of Environmental Restoration and Waste Management ; Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 2017
• Mô tả vật lý: Size: 24 p. : , digital, PDF file.
• Bộ sưu tập: Metadata
• ID: 268083
• Chủ đề: 1. 42 engineering; 2. Heating load; 3. Humidity; 4. Storage; 5. Temperature gradients

Tóm tắt

The 9975 surveillance program is developing a technical basis to support extending the storage period of 9975 packages in K-Area Complex beyond the currently approved 15 years. A key element of this effort is developing a better understanding of degradation of the fiberboard assembly under storage conditions. This degradation is influenced greatly by the moisture content of the fiberboard, which is not well characterized on an individual package basis. Direct measurements of humidity and fiberboard moisture content have been made on two test packages with softwood fiberboard and varying internal heat levels from 0 up to 19W. Comparable measurements with cane fiberboard have been reported previously. With an internal heat load, a temperature gradient in the fiberboard assembly leads to varying relative humidity in the air around the fiberboard. However, the absolute humidity tends to remain approximately constant throughout the package, especially at lower heat loads.