NATURAL CONVECTION IN ROOM GEOMETRIES

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Computer programs have been developed to numerically simulate natural convection in room geometries in two and three dimensions. The programs have been validated using published data from the literature, results from a full-scale experiment performed at Massachusetts Institute of Technology, and results from a small-scale experiment reported here. One of the computer programs has been used to study the influence of natural convection on the thermal performance of a single thermal zone in a direct-gain passive solar building. The results indicate that the building heating loads calculated by standard building energy analysis methods may be in error by as much ... continued below

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13 p.

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Gadgil, A.; Bauman, Fred; Kammerud, R. & Ruberg, K. June 1, 1980.

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Description

Computer programs have been developed to numerically simulate natural convection in room geometries in two and three dimensions. The programs have been validated using published data from the literature, results from a full-scale experiment performed at Massachusetts Institute of Technology, and results from a small-scale experiment reported here. One of the computer programs has been used to study the influence of natural convection on the thermal performance of a single thermal zone in a direct-gain passive solar building. The results indicate that the building heating loads calculated by standard building energy analysis methods may be in error by as much as 50% as a result of their use of common assumptions regarding the convection processes which occur in an enclosure. It is also found that the convective heat transfer coefficients between the air and the enclosure surfaces can be substantially different from the values assumed in the standard building energy analysis methods, and can exhibit significant variations across a given surface.

Physical Description

13 p.

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  • Report No.: LBL-9297
  • Grant Number: DE-AC02-05CH11231
  • DOI: 10.2172/943359 | External Link
  • Office of Scientific & Technical Information Report Number: 943359
  • Archival Resource Key: ark:/67531/metadc901562

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  • June 1, 1980

Added to The UNT Digital Library

  • Sept. 27, 2016, 1:39 a.m.

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  • Jan. 4, 2017, 5:39 p.m.

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Gadgil, A.; Bauman, Fred; Kammerud, R. & Ruberg, K. NATURAL CONVECTION IN ROOM GEOMETRIES, report, June 1, 1980; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc901562/: accessed August 19, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.