01794nas a2200133 4500008004100000245009600041210006900137260003900206520127100245100002101516700001801537700001901555856008601574 2002 eng d00aA Computer Simulation Appraisal of Non-Residential Low Energy Cooling Systems in California0 aComputer Simulation Appraisal of NonResidential Low Energy Cooli aAsilomar, California, USAc08/20023 a

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:

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 offset by a reduction in air-side free cooling. Overall, the results indicate significant opportunities for LEC technologies to reduce energy consumption and demand in non-residential new construction and retrofit.

1 aBourassa, Norman1 aHaves, Philip1 aHuang, Yu, Joe uhttps://simulationresearch.lbl.gov/publications/computer-simulation-appraisal-non