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

Daniel Studer | Zendy; Rachel Romero | Zendy; Lesley Herrmann | Zendy; Kyle Benne | Zendy

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

Author(s) -

Daniel Studer,

Rachel Romero,

Lesley Herrmann,

Kyle Benne

Publication year - 2012

Language(s) - English

Resource type - Reports

DOI - 10.2172/1039790

Subject(s) - retrofitting , measure (data warehouse) , energy (signal processing) , variable (mathematics) , efficient energy use , environmental science , computer science , engineering , automotive engineering , business , electrical engineering , mathematics , structural engineering , mathematical analysis , statistics , database

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

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