Field Study Evaluation of Heating, Ventilation, and Air Conditioning (HVAC) Options for Advanced
Relocatable Classrooms (RCs)
Goal Statement:
To conduct energy and indoor environmental quality (IEQ) studies on high-performance relocatable classrooms (RCs) in
California.
Results:
The following tasks were successfully completed:
- Recruit one or more school district(s) in California and develop working relations for a detailed energy and IEQ study
of high-performance RCs.
- Recruit a large manufacturer of RCs to collaborate in construction of high performance RCs (HPCBS RCs) to be supplied
to participating school districts.
- Specify and design a high-performance heating, ventilation, and air conditioning (HVAC) system for use in the HPCBS RCs.
- With input from the collaborating RC manufacturer and other stakeholders, specify energy-efficiency components of the
HPCBS RCs.
- Computed daily mean and peak value statistics for the following:
- six-minute-interval data collected for all school hours during 2001-2002 school year (data were collected for
four separate time periods: Beginning of school until recess, After recess until lunch, After lunch until p.m.
recess, and After p.m. recess until end of school day)
- Weekly periods by HVAC mode [i.e., indirect/direct evaporative cooler (IDEC) or standard HVAC system week] .
The following data analyses are now being conducted:
- Compute measures of variance in the outcomes from the time-series data.
- Compare the means and variance of IEQ outcomes from periods with the reference HVAC system operating to the means and
variance with operation of the Package B systems.
- Select subsets of the full data set with closely matched weather and occupancy patterns and perform the same types of
comparisons.
- Assess the effectiveness of the source control measures by comparisons of volatile organic compound (VOC) concentrations
measured over time in the RCs with alternative low-VOC materials to concentrations measured in the base-case RCs.
Further details on Field Study of HVAC Options.
Downloads and Links:
Contact:
Michael Apte, Lawrence Berkeley National Laboratory (LBNL), (510) 486-4669
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