Part-Load Performance Characterization and Energy Savings Potential of the RTU Challenge Unit: Daikin Rebel

Technical Report · Mon Sep 30 00:00:00 EDT 2013

DOI:https://doi.org/10.2172/1095454· OSTI ID:1095454

Wang, Weimin; Katipamula, Srinivas

In 2011, the U.S. Department of Energy’s Building Technology Office (DOE’s BTO), with help from the Better Buildings Alliance (BBA) members, developed a specification for high performance rooftop air-conditioning units (RTU Challenge) with capacity ranges between 10 and 20 tons (DOE 2013). Daikin’s Rebel for the first rooftop unit system that was recognized by DOE in May 2012 as meeting the RTU Challenge specifications. This report documents the development of part-load performance curves and its use with EnergyPlus simulation tool to estimate the potential savings from use of Rebel compared to other standard options.

• Research Organization: Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 1095454
• Report Number(s): PNNL-22720; BT0201000
• Country of Publication: United States
• Language: English