Study of Energy and Cost Savings of Demand Controlled Fresh Air Systems

Research output: Contribution to conferencePaperpeer-review

Abstract

This paper presents findings from a study on the energy and cost savings of Demand Controlled Fresh (outdoor) air systems for existing office buildings. The study was based on technical analysis of data from an existing 11 storey office building located in London. The study proposed a retro-fit mechanical system and control solution to convert the existing constant volume fresh air system to a demand based system. The four key parts of the proposed system were the occupancy detection device, local ventilation zone branch control, central ventilation plant control and overall controls logic. The building and proposed control solutions were simulated. The results revealed up to 39% annual energy savings for the fresh air plant. This equates to 4% reduction of the overall building annual energy and an overall building annual energy cost saving of around 3%.
Original languageEnglish
Publication statusPublished - 13 Apr 2018
EventCIBSE Technical Symposium -
Duration: 25 Apr 2019 → …

Conference

ConferenceCIBSE Technical Symposium
Period25/04/19 → …

Keywords

  • control
  • energy
  • ventilation
  • Demand
  • building

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