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 language | English |
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| Publication status | Published - 13 Apr 2018 |
| Event | CIBSE Technical Symposium 2019 - University of Sheffield, Sheffield, United Kingdom Duration: 25 Apr 2019 → 26 Apr 2019 |
Conference
| Conference | CIBSE Technical Symposium 2019 |
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| Country/Territory | United Kingdom |
| City | Sheffield |
| Period | 25/04/19 → 26/04/19 |
| Other | The 9th annual CIBSE Technical Symposium, “Transforming Built Environments - driving change with engineering” took place at the University of Sheffield from 25-26 April 2019. The 2019 symposium provided an opportunity to examine and share research, development and applications that will drive change in the regulation, creation and maintenance of the built environment as well as evidence where there are still clear opportunities to benefit from established practices. |
Keywords
- control
- energy
- ventilation
- Demand
- building