Impacts of Duct Leakage on Central heating and Cooling of Outdoor Air

Category: 
Commercial
Project Number: 
ET14SCE7020
Start Year: 
2014
End Year: 
2016
Markets Segments: 
Commercial
Commercial Office
Educational Facilities
Food Service Industry
Government - Institutional Facilities
Hospitality
Medical - Healthcare
Retail
Supermarket
Project Type: 
Electric Energy Savings
Methodology
Type of Technology: 
HVAC, Commercial
Organization: 
Southern California Edison (SCE)
Project Status: 
Applied Research
Completed
Savings Type: 
Work

Project Summary

This study seeks to develop an accurate means of estimating impacts of supply duct-system leakage on energy use in commercial buildings with VAV systems, focusing on central-system cooling and outdoor air (OA) preheating. The project team developed a simplified method for characterizing impacts of weather on cooling and preheating outdoor air. The study accounted for duct-system leakage upstream and downstream of VAV boxes, as well as the fraction of OA drawn into the supply fan. The team calculated the required cooling and preheating of outdoor air with and without duct leakage for three California locations, categorized as hot (Palm Springs) and moderate (Riverside and Sacramento).

PDF Report: 
Download PDF

Please complete the following form in order to download the selected file.  If you would like to create an account in order to bypass this form in the future or already have an account please login in order to bypass this screen.