To address the regional applicability of heat-source tower heat pumps (HSTHPs), a mathematical model HSTHPs was established and experimentally verified. In different thermal zones, seasonal operation characteristics were investigated in winter summer conditions. The results showed that, heating performance factor (HSPF) value cold zone is lowest, but it can reach 2.40 winter, HSPF values hot-su...

In this paper, we consider boundary stabilization problem of heat equation with multi-point source. Firstly, a state feedback controller is designed mainly by backstepping approach. Under the controller, exponential stability closed-loop system guaranteed. Then, an observer-based output proposed. We prove resulting using operator semigroup theory. Finally, and controllers are effective via some...

The modelling of the thermal process is used as a tool in determination properties materials, subject to welding. One most important steps calibration heat source model. This necessary condition for given model be solve practical problems. standard practice this regard calibrate by shape melted zone or temperature cycles at set points. In present work, based on maximum temperatures measured sev...