Energy Implications of Retrofitting Retail Sector Rooftop Units with Stepped-Speed and Variable-Speed Functionality

Studer, D. ; Romero, R. ; Herrmann, L. ; Benne, K.

National Renewable Energy Laboratory (U.S.)

关键词: Blowers;    Constant Speed Variable Speed;    Management;    Business;    Economics;   

DOI  :  10.2172/1039790
RP-ID  :  NREL/TP-5500-51102
RP-ID  :  AC36-08GO28308
RP-ID  :  1039790

美国|英语

来源: UNT Digital Library

【 摘 要 】

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.