A qualitative assessment of microclimatic perturbations in atunnel

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Understanding microclimate dynamics in tunnels is importantfor designing and maintaining underground facilities. For example, in thegeological disposal of radioactive materials, condensation of vaporshould be minimized as it can accelerate waste package corrosion andradionuclide release. While microclimate dynamics are known to bedominated by the advection of heat and moisture, additional factors mayalso be important, such as the presence of fractures or faults. Wepresent a relatively inexpensive method to assess microclimaticperturbations within a tunnel. By combining standard temperature andrelative humidity sensors with low-cost sensors designed to detectchanges in condensation, we monitored microclimate dynamics along atunnel at the proposed geological repository at Yucca ... continued below

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Salve, R. & Kowalsky, M.B. March 1, 2007.

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Description

Understanding microclimate dynamics in tunnels is importantfor designing and maintaining underground facilities. For example, in thegeological disposal of radioactive materials, condensation of vaporshould be minimized as it can accelerate waste package corrosion andradionuclide release. While microclimate dynamics are known to bedominated by the advection of heat and moisture, additional factors mayalso be important, such as the presence of fractures or faults. Wepresent a relatively inexpensive method to assess microclimaticperturbations within a tunnel. By combining standard temperature andrelative humidity sensors with low-cost sensors designed to detectchanges in condensation, we monitored microclimate dynamics along atunnel at the proposed geological repository at Yucca Mountain, Nevada.We observed significant differences in the pattern of condensation in afaulted zone relative to that of a nonfaulted zone, suggesting that themicroclimate dynamics of excavated cavities in fractured, partiallysaturated rocks can be highly complex.

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  • Journal Name: International Journal of Climatology; Journal Volume: DOI: 10.1002/joc; Related Information: Journal Publication Date: 2008

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  • Report No.: LBNL--63049
  • Grant Number: DE-AC02-05CH11231
  • Office of Scientific & Technical Information Report Number: 929047
  • Archival Resource Key: ark:/67531/metadc896450

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • March 1, 2007

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  • Sept. 27, 2016, 1:39 a.m.

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  • Sept. 30, 2016, 12:39 p.m.

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Salve, R. & Kowalsky, M.B. A qualitative assessment of microclimatic perturbations in atunnel, article, March 1, 2007; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc896450/: accessed October 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.