Mode and storage load based control of a complex building system with a geothermal field

Abstract

The development of control strategies is a challenge for optimal use of lowtemperature heat in complex energy systems. In the energy system of the considered building several different combinations of active system components lend themselves to supply a given energy demand. Within preceding research, we transformed the considered building into a multi-functional test bench for control techniques that offers optimal conditions for the demonstration and evaluation of control strategies. This paper describes a control strategy for the complex heat pump system based on operation modes. It enables us to integrate a geothermal field into the system with respect to exergetic principles. The paper presents results of the control strategy's first year of operation. It correlates between active operation modes and the respective electrical consumption of the building. We derive the potential of the implemented operation modes for demand response applications. A modebased control strategy enables the robust and efficient operation of complex building-energy-systems. We show that the integration of renewable energy sources becomes easy and flexible.

Fault Detection and Diagnosis Encyclopedia for Building Systems: A Systematic Review

“…Even though it is the same type, the specific behavior might differ significantly. This problem was demonstrated in [65], in which several different FD models for a reversible heat pump were trained using an experimental dataset [66] and then applied in FD using a real building dataset [67]. The results can be seen in Figure 4.…”

Application of abandoned wells integrated with renewables

“…The Hammerstein-Wiener models are validated to be effective in advanced model-based control. Bode et al [53] developed a mode-based control strategy on heat pumps, with integrations of a geothermal field. The results showed that the mode-based control strategy is effective in integrating renewable energies in the built environment.…”

Sustainability of Shallow Geothermal Energy for Building Air-Conditioning

“…Bode et al [140] focus on control strategies for a geothermal heat pump coupled to thermal storage systems. The case study is a multi-purpose building with offices, laboratories, and conference rooms.…”