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Title: Field Evaluation of the Performance of the RTU Challenge Unit: Daikin Rebel

Abstract

Packaged rooftop air-conditioning units (RTUs) are used in 44% (2.5 million) of all commercial buildings, serving over 57% (46 billion square feet) of the commercial building floor space in the United States (EIA 2012). The primary energy consumption associated with RTUs is over 2.2 quads annually. Therefore, even a small improvement in efficiency or part-load operation of these units can lead to significant reductions in energy use and carbon emissions. Starting in 2011, the U.S. Department of Energy’s (DOE’s) Building Technologies Office funded a series of projects related to RTUs. Some projects were intended to improve the operating efficiency of the existing RTUs, while others were focused on improving the operating efficiency of new units. This report documents the field-testing and comparison of the seasonal efficiency of a state-of-art RTU Challenge unit and a standard unit. Section II provides the background for the work. Section III describes the measurement and verification plan for the field tests. Section IV describes the measurement and verification evaluation plan. The results are described in Section V. The lessons learned and recommendations for future work are presented in Section VI. A list of references is provided in Section VII.

Authors:
 [1];  [1];  [1];  [1]
  1. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
OSTI Identifier:
1405059
Report Number(s):
PNNL-26279
BT0201000
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; Building Technologies Office; Department of Energy (DOE); Field Demonstration; Energy Efficiency; Seasonal Efficiency; Op; Me

Citation Formats

Katipamula, Srinivas, Wang, W., Ngo, Hung, and Underhill, Ronald M. Field Evaluation of the Performance of the RTU Challenge Unit: Daikin Rebel. United States: N. p., 2017. Web. doi:10.2172/1405059.
Katipamula, Srinivas, Wang, W., Ngo, Hung, & Underhill, Ronald M. Field Evaluation of the Performance of the RTU Challenge Unit: Daikin Rebel. United States. doi:10.2172/1405059.
Katipamula, Srinivas, Wang, W., Ngo, Hung, and Underhill, Ronald M. Wed . "Field Evaluation of the Performance of the RTU Challenge Unit: Daikin Rebel". United States. doi:10.2172/1405059. https://www.osti.gov/servlets/purl/1405059.
@article{osti_1405059,
title = {Field Evaluation of the Performance of the RTU Challenge Unit: Daikin Rebel},
author = {Katipamula, Srinivas and Wang, W. and Ngo, Hung and Underhill, Ronald M.},
abstractNote = {Packaged rooftop air-conditioning units (RTUs) are used in 44% (2.5 million) of all commercial buildings, serving over 57% (46 billion square feet) of the commercial building floor space in the United States (EIA 2012). The primary energy consumption associated with RTUs is over 2.2 quads annually. Therefore, even a small improvement in efficiency or part-load operation of these units can lead to significant reductions in energy use and carbon emissions. Starting in 2011, the U.S. Department of Energy’s (DOE’s) Building Technologies Office funded a series of projects related to RTUs. Some projects were intended to improve the operating efficiency of the existing RTUs, while others were focused on improving the operating efficiency of new units. This report documents the field-testing and comparison of the seasonal efficiency of a state-of-art RTU Challenge unit and a standard unit. Section II provides the background for the work. Section III describes the measurement and verification plan for the field tests. Section IV describes the measurement and verification evaluation plan. The results are described in Section V. The lessons learned and recommendations for future work are presented in Section VI. A list of references is provided in Section VII.},
doi = {10.2172/1405059},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed May 31 00:00:00 EDT 2017},
month = {Wed May 31 00:00:00 EDT 2017}
}

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