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NIST is working to measure and improve the operational performance of commercial buildings by leveraging previously untapped capabilities within modern automation and control systems. This requires developing a measurement science that enables automatic detection and diagnosis of equipment faults, sensor failures, and control errors in the heating, ventilating, and air-conditioning (HVAC) systems of buildings. The resulting fault detection and diagnosis (FDD) software ("FDD tools") will utilize existing sensors and controller hardware, and will employ artificial intelligence, deductive modeling, and statistical methods to automatically detect and diagnose deviations between actual and optimal HVAC system performance.
Objective - To improve the operating efficiency of commercial heating, ventilating, and air-conditioning (HVAC) systems by 10% to 30% through development and demonstration of the enabling measurement science for detecting faults and control errors in commercial HVAC equipment and systems, and transferring the measurement science to the private sector.
In past years the project has focused on the early steps of this plan and resulted in several equipment specific FDD tools. The current focus has shifted to refinement and testing of a prototype FDD-EA as a means to make those tools more autonomous and more adaptive. Autonomy means tools that are less dependent on a human expert intervening in order to infer critical FDD parameter values from the available data. Adaptation means the tool improves its reliability by "learning" from its mistakes, through interaction and feedback from building operators, a capability that enhances FDD acceptance.NIST will leverage existing CRADAs with industry partners to speed commercialization of FDD research results. NIST will also leverage academic ties to sponsor components of the research through contracts and grant solicitations. The outcome will be a suite of proven algorithms for FDD that can be embedded in hardware that is practical for commercial adaptation.
Start Date:October 1, 2011
Lead Organizational Unit:el
Virtual Cybernetic Building Testbed
Project Leader: Daniel Veronica
Related Programs and Projects:
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