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ESTIMATION OF UNKNOWN STATES FOR AN ELECTRIC WATER HEATER WITH THERMAL STRATIFICATION AND USE OF SAME IN DEMAND RESPONSE AND CONDITION-BASED MAINTENANCE
ESTIMATION OF UNKNOWN STATES FOR AN ELECTRIC WATER HEATER WITH THERMAL STRATIFICATION AND USE OF SAME IN DEMAND RESPONSE AND CONDITION-BASED MAINTENANCE
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机译：带有热分层的电热水器的未知状态估计以及在需求响应和基于条件的维护中使用相同的方法
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摘要
A water heater that includes a cylindrical storage tank, at least one heating element, and at least one temperature sensor is modeled using a one-dimensional model that includes: a vertical stack of disks representing the water volume in the cylindrical storage tank, and a stack of annular segments surrounding the vertical stack of disks. The stack of annular segments represents the cylindrical wall of the cylindrical storage tank. The one-dimensional model may be used by a condition-based maintenance system comprising an electronic data processing device configured to detect a failure mode present in the water heater based on an output of the water heating model component. Some illustrative failure modes include insulation disturbance, heating element failure, excessive sediment buildup, or a drip tube rupture.
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