A novel Monte Carlo modelling method to support control strategies development in building ventilation

Chen Zhang*, Simon Pommerencke Melgaard, Per Kvols Heiselberg, Arnkell J. Petersen, Mehrdad Rabani

*Corresponding author for this work

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

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Abstract

Ventilation is critical for maintaining thermal comfort and air quality in buildings. However, developing ventilation control is challenging due to the large number of control variables and performance criteria. Typical ventilation controls are On-Off controls, time schedules, and PI/PID controls. Specific parameters are tuned based on simple rules of thumb and the engineer’s experience. Although building simulation tools are commonly applied, they are normally used to evaluate the performance of certain control strategies rather than guide the development of these control strategies. This study presents a novel Monte Carlo modelling method that supports the early-stage development of ventilation control. The method consists of the following steps: (1) Creating an initial building model, (2) Identifying relevant control variables and assigning probability distributions, (3) Executing Monte Carlo simulations, (4a) Applying filters to assess the outcomes, (4b) Performing sensitivity analysis on control variables, (5) Selecting a ventilation control strategy fulfilling control objectives. The method is tested on a classroom equipped with a hybrid ventilation system. The case study demonstrates that the novel approach, allows ventilation designers to systematically identify high-performance control solutions for multiple control variables and performance requirements. Thus, offering clear advantages over the traditional trial-and-error method.
Original languageEnglish
Title of host publicationRoomvent 2024
Publication dateApr 2024
Publication statusPublished - Apr 2024
EventRoomvent 2024: Healthy air together - when scientific and industrial advances meet the needs of society - Stockholm, Sweden
Duration: 22 Apr 202425 Apr 2024
https://invitepeople.com/public/events/fe41371a0b/pages/ed19d3ae89

Conference

ConferenceRoomvent 2024
Country/TerritorySweden
CityStockholm
Period22/04/202425/04/2024
Internet address

Keywords

  • Hybrid ventilation
  • Ventilation control strategy
  • Monte Carlo Method
  • Building Simulation

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