A computer simulation appraisal of non-residential low energy cooling systems in California

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An appraisal of the potential performance of different Low Energy Cooling (LEC) systems in nonresidential buildings in California is being conducted using computer simulation. The paper presents results from the first phase of the study, which addressed the systems that can be modeled, with the DOE-2.1E simulation program. The following LEC technologies were simulated as variants of a conventional variable-air-volume system with vapor compression cooling and mixing ventilation in the occupied spaces: Air-side indirect and indirect/direct evaporative pre-cooling. Cool beams. Displacement ventilation. Results are presented for four populous climates, represented by Oakland, Sacramento, Pasadena and San Diego. The greatest energy ... continued below

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Bourassa, Norman; Haves, Philip & Huang, Joe May 17, 2002.

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Description

An appraisal of the potential performance of different Low Energy Cooling (LEC) systems in nonresidential buildings in California is being conducted using computer simulation. The paper presents results from the first phase of the study, which addressed the systems that can be modeled, with the DOE-2.1E simulation program. The following LEC technologies were simulated as variants of a conventional variable-air-volume system with vapor compression cooling and mixing ventilation in the occupied spaces: Air-side indirect and indirect/direct evaporative pre-cooling. Cool beams. Displacement ventilation. Results are presented for four populous climates, represented by Oakland, Sacramento, Pasadena and San Diego. The greatest energy savings are obtained from a combination of displacement ventilation and air-side indirect/direct evaporative pre-cooling. Cool beam systems have the lowest peak demand but do not reduce energy consumption significantly because the reduction in fan energy is offse t by a reduction in air-side free cooling. Overall, the results indicate significant opportunities for LEC technologies to reduce energy consumption and demand in nonresidential new construction and retrofit.

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OSTI as DE00799624

Source

  • 2002 ACEEE Summer Study on Energy Efficiency in Buildings, Pacific Grove, CA (US), 08/18/2002--08/23/2002

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  • Report No.: LBNL--50677
  • Report No.: DR-454
  • Grant Number: AC03-76SF00098
  • Office of Scientific & Technical Information Report Number: 799624
  • Archival Resource Key: ark:/67531/metadc733574

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  • May 17, 2002

Added to The UNT Digital Library

  • Oct. 19, 2015, 7:39 p.m.

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  • April 4, 2016, 4:04 p.m.

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Bourassa, Norman; Haves, Philip & Huang, Joe. A computer simulation appraisal of non-residential low energy cooling systems in California, article, May 17, 2002; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc733574/: accessed August 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.