Seminar 43 -- Fault Prevalence Types and Impacts by Building Types and System Types

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The lack of comprehensive studies on prevalence of various faults in commercial buildings has been a major barrier for building owners and operators to deploy AFDD in their buildings. This seminar presents the results of recent large-scale studies investigating the prevalence of faults in HVAC systems in commercial buildings as well as the impacts of the various fault scenarios on unitary air conditioner and high performance control sequences in handling those faults. The seminar will also discuss the challenges of this type of study and the implication of the results.

1. Quantifying HVAC Fault Prevalence Using the Largest Standardized Fault Dataset Assembled to Date< /br> Eliot Crowe, Lawrence Berkeley National Laboratory, Berkeley, CA
2. Impacts of Faults on Unitary Air Conditioners< /br> Yifeng Hu, P.E., Student Member, University of Nebraska - Lincoln, Omaha, NE
3. Performance of High-Performance Control Sequences in Handling Various Faults< /br> Xing Lu, Student Member, Texas A&M University, College Station, TX