The team at KGS Buildings makes a compelling case for a modeling approach to whole-building energy assessment that also supports a continuous and connected process as you move up and down through a building system hierarchy. Diagnosing a detected anomaly, for example, can require examining operational efficiency of the HVAC system as a whole, then a series of VAV’s all connected to one AHU, then an individual AHU or an individual VAV, etc. Sometimes called hierarchical rule-based FDD, or monitoring-based commissioning (MBCx), software suites like KGS Clockworks™ have a Fault Detection and Diagnostics (FDD) knowledge base at the core with decades of accumulated performance data, made accessible with the latest data search methods. They can provide an enterprise view across multiple buildings and multiple building automation system platforms down to individual equipment by comparing data collected from each facility to its library of diagnostic code data. Clockworks’ library incorporates cooperative research and development with Pacific Northwest National Laboratory (PNNL) on diagnostics for outdoor air economizers and whole buildings as well as re-tuning algorithms that identify operational inefficiencies leading to comfort and maintenance problems and excess energy consumption.
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