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    Development of New Whole Building Fault Detection and Diagnosis Techniques for Commissioning Persistence

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    LIN-DISSERTATION-2012.pdf (3.230Mb)
    Date
    2012-12-07
    Author
    Lin, Guanjing
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    Abstract
    Commercial building owners spent $167 billion for energy in 2006. Building commissioning services have proven to be successful in saving building energy consumption. However, the optimal energy performance obtained by commissioning may subsequently degrade. The persistence of savings is of significant interest. For commissioning persistence, two statistical approaches, Days Exceeding Threshold-Date (DET-Date) method and Days Exceeding Threshold-Outside Air Temperature (DET-Toa) method, are developed to detect abnormal whole building energy consumption, and two approaches called Cosine Similarity method and Euclidean Distance Similarity method are developed to isolate the possible fault reasons. The effectiveness of these approaches is demonstrated and compared through tests in simulation and real buildings. The impacts of the factors including calibrated simulation model accuracy, fault severity, the time of fault occurrence, reference control change magnitude setting, and fault period length are addressed in the sensitivity study. The study shows that the DET-Toa method and the Cosine Similarity method are superior and more useful for the whole building fault detection and diagnosis.
    URI
    http://hdl.handle.net/1969.1/148190
    Subject
    Fault Diagnosis
    Fault detection
    Whole Building
    Energy Consumption
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    • Electronic Theses, Dissertations, and Records of Study (2002– )
    Citation
    Lin, Guanjing (2012). Development of New Whole Building Fault Detection and Diagnosis Techniques for Commissioning Persistence. Doctoral dissertation, Texas A&M University. Available electronically from http : / /hdl .handle .net /1969 .1 /148190.

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