Living Lab Energy Campus (LLEC) experimental buildings

Markus Breig (KIT)
View of the three LLEC experimental buildings (left) and the SEnSSiCC building (right). (Photo: Markus Breig, KIT)

In the Helmholtz Research Infrastructure Living Lab Energy Campus the construction of three experimental buildings with identical building envelope and generous instrumentation, but different controllable heating systems, was realized. The three experimental buildings enable research on a self-adjusting process control for the network-based regulation of building heating systems and their validation in a real-world experiment. Due to an improved process control, all heating systems equipped with such modern controllers directly save energy. Electricity-based heating systems with network-based controls also provide system services in the electricity network.

Research topics

  • Real testing of any operating scenario through high flexibility of the experimental buildings
  • Self-adjusting process control for network-based control for building heating systems and validation in real-world experiments
  • Operation of a complete DC building

 

Equipment

Heat pump house
  • Air-to-water heat pump
  • Sole-to-water heat pump
  • Exhaust air module for brine-water heat pump
  • Connection to district heating network
  • Heat stratified storage tank
  • Photovoltaic system
  • Battery storage (AC, three-phase, 15 kWh)
  • Charging stations (also V2G)
  • Battery electric vehicles
Direct Power to Heat house
  • Electric auxiliary heating
  • Electric floor heating for component activation
  • Solar thermal system
  • Connection to district heating network
  • Heat stratified storage tank
Gas2Heat house
  • Gas condensing boiler
  • Natural gas fuel cell
  • Home ventilation with heat recovery
  • Connection to district heating network
  • Heat stratified storage tank
  • Photovoltaic system
  • Battery storage (DC, single-phase, 5.2 kWh)
  • Charging stations (also V2G)
  • Kitchen with direct current appliances
Weather measuring station
  • Solar radiation
  • Outdoor temperature
  • Wind speed
  • Air pressure
  • Wind direction
  • Humidity
  • Cloud coverage
  • Precipitation quantity
  • Brightness
Measuring sensors
  • Thermal measurements (room air, walls, ceilings, screed, near-surface geothermal energy, stratified storage, heat and cold generators, outside temperature, u-value, room humidity, CO2, heat meter heating circuit, ...)
  • Electrical measurements (current, voltage, frequency, ...)
  • Hydraulic measurements (volume flows over heating circuit, mass flows over heating circuit, differential pressures over heating circuit)

 

Selected scientific publications


  1. Coordinated price-based control of modulating heat pumps for practical demand response and peak shaving in building clusters
    Langner, F.; Kovačević, J.; Zwickel, P.; Dengiz, T.; Frahm, M.; Waczowicz, S.; Çakmak, H. K.; Matthes, J.; Hagenmeyer, V.
    2024. Energy and Buildings, 324, 114940. doi:10.1016/j.enbuild.2024.114940
  2. Towards a Real-World Dispatchable Feeder
    Beichter, S.; Beichter, M.; Werling, D.; Galenzowski, J.; Weise, V.; Hildenbrand, C.; Wiegel, F.; Mikut, R.; Waczowicz, S.; Hagenmeyer, V.
    2023. 2023 8th IEEE Workshop on the Electronic Grid (eGRID), Karlsruhe, Germany, 16-18 October 2023, 1–6, Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/eGrid58358.2023.10380834Full textFull text of the publication as PDF document
  3. Demand Response in Smart Districts: Model Predictive Control of Building Cooling
    Zwickel, P.; Frahm, M.; Galenzowski, J.; Hafele, K.-H.; Maass, H.; Waczowicz, S.; Hagenmeyer, V.
    2022. 2022 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT-Europe), 1–6, Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/ISGT-Europe54678.2022.9960608Full textFull text of the publication as PDF document

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