Energy implications of retrofitting retail sector rooftop units with stepped-speed and variable-speed functionality
By: Daniel Studer ... [et al.].
Contributors: National Renewable Energy Laboratory (U.S.)
Series: NREL/TP -- 5500-51102; NREL/TP -- 5500-51102.
Publisher: National Renewable Energy Laboratory
Published: 2012
Place of publication: Golden, Colo
Language: eng
Format: [electronic resource] /
Number of pages: 56
Subjects: Evaporative cooling; Research; Air conditioning; Energy conservation; Retail Stores
Description: Commercial retailers understand that retrofitting constant-speed RTU fan motors with stepped- or variable-speed alternatives could save significant energy in most U.S. climate zones. However, they lack supporting data, both real-world and simulation based, on the cost effectiveness and climate zone-specific energy savings associated with this measure. Thus, building managers and engineers have been unable to present a compelling business case for fan motor upgrades to upper management. This study uses whole-building energy simulation to estimate the energy impact of this type of measure so retailers can determine its economic feasibility.
Notes: Title from title screen (viewed on Aug. 7, 2012).

"April 2012."

"This report was prepared by the National Renewable Energy Laboratory (NREL) Center for Electricity, Resources, and Building Systems Integration."

Includes bibliographical references (p. 34).

Technical report.

DE-AC36-08GO28308 BEC7.1311