Title

Final Report: Cooling Seasonal Energy and Peak Demand Impacts of Improved Duct Insulation on Fixed-Capacity (SEER 13) and Variable-Capacity (SEER 22) Heat Pumps

Secondary Author(s)

Cummings, James; Nigusse, Bereket

Report Number

FSEC-CR-2039-16

URL

http://publications.energyresearch.ucf.edu/wp-content/uploads/2018/06/FSEC-CR-2039-16.pdf

Keywords

Cooling; Buildings; Peak Demand; Ducts; Heat Pumps

Abstract

Previous phase 1, 2, and 3 research identified that duct conductive losses to an attic environment imposed greater relative energy losses for the variable-capacity systems compared to the fixed-capacity systems (Cummings and Withers 2011) because of the longer dwell time of conditioned air in the ducts. The purpose of the Phase 4 experiments reported here was to see if duct R-value enhancement would benefit the overall operating efficiency of the variable-capacity system relatively more than the fixed-capacity system. The current Phase 4 experiments (the primary focus of this report) found that this was a secondary effect.

Date Published

9-1-2016

Subjects

Buildings - Cooling; Buildings - Ducts; Heat Pumps; Buildings - Peak Demand

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