Blar i NTNU Open på forfatter "Wolf, Sebastian"

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    • Carbon dioxide-based occupancy estimation using stochastic differential equations 

      Wolf, Sebastian; Cali, Davide; Krogstie, John; Madsen, Henrik (Peer reviewed; Journal article, 2019)
      In the existing building stock, heating, cooling and ventilation usually run on fixed schedules, in many cases, even all day. In particular, ventilation systems often run with a constant air flow rate that is adjusted based ...

    • CO2-based grey-box model to estimate airflow rate and room occupancy 

      Wolf, Sebastian; Alonso, Maria Justo; Cali, Davide; Krogstie, John; Mathisen, Hans Martin; Madsen, Henrik (Journal article; Peer reviewed, 2019)
      In the existing building stock, heating, cooling and ventilation often run on fixed schedules assuming maximal occupancy. However, fitting the control of the HVAC system to the building’s real demand offers large potential ...

    • A Markov-Switching model for building occupant activity estimation 

      Wolf, Sebastian; Møller, Jan; Bitsch, Magnus Alexander; Krogstie, John; Madsen, Henrik (Peer reviewed; Journal article, 2019)
      Heating and ventilation strategies in buildings can be improved significantly if information about the current presence and activity level of the occupants is taken into account. Therefore, there is a high demand for ...

    • A methodology for the selection of pollutants for ensuring good indoor air quality using the de-trended cross-correlation function 

      Justo Alonso, Maria; Wolf, Sebastian; Jørgensen, Rikke Bramming; Madsen, Henrik; Mathisen, Hans Martin (Peer reviewed; Journal article, 2021)
      CO2 is customarily used to control ventilation as it is a proxy for bio-effluents and pollutants related to the presence and activity of people in the room. However, CO2 could not be a satisfactory indicator for pollutants ...

    • Room-level occupancy simulation model for private households 

      Wolf, Sebastian; Cali, Davide; Alonso, Maria Justo; Li, Rongling; Korsholm Andersen, Rune; Krogstie, John; Madsen, Henrik (Journal article; Peer reviewed, 2019)
      This work presents a novel occupancy simulation model for residential buildings. The main contribution is that occupancy is simulated at room level, as opposed to more course spatial resolutions in previous studies. The ...