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Title: Two-dimensional analysis of natural convection and radiation in utilidors
Authors: Richmond, Paul W.
Keywords: Central heat distribution
Radiation and convection
Effective conductivity
Numerical heat transfer
Underground utility lines
Arctic regions
Issue Date: Jun-1999
Publisher: Cold Regions Research and Engineering Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Series/Report no.: CRREL report ; 99-7.
Description: CRREL Report
Abstract: Central heating plants are often used on large building complexes such as university campuses or military bases. Utilidors can be used to contain heat distribution lines and other utilities between a utility station and serviced buildings. Traditional thermal analysis of utilidors is one-dimensional, with heat transfer correlations used to estimate the effects of convection, radiation, and two-dimensional geometric effects. The expanding capabilities of computers and numerical methods suggest that more detailed analysis and possibly more energy-efficient designs could be obtained. This work examines current methods of estimating the convection and radiation that occur across an air space in square and rectangular enclosures and compares them with numerical and experimental data.
Appears in Collections:CRREL Report

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