Energy analysis of the personalized ventilation system in hot and humid climates

S. Schiavon, Arsen Krikor Melikov, C. Sekhar

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Personalized ventilation (PV) is an individually controlled air distribution system aimed at improving the quality of inhaled air and the thermal comfort of each occupant. Numerous studies have shown that PV in comparison with traditional mechanical ventilation systems may improve occupants’ health, inhaled air quality, thermal comfort, and self-estimated productivity. Little is known about its energy performance. In this study, the energy consumption of a personalized ventilation system introduced in an office building located in a hot and humid climate (Singapore) has been investigated by means of simulations with the empirically tested IDA-ICE software. The results reveal that the use of PV may reduce the energy consumption substantially (up to 51%) compared to mixing ventilation when the following control strategies are applied: (a) reducing the airflow rate due to the higher ventilation effectiveness of PV; (b) increasing the maximum allowed room air temperature due to PV capacity to control the microclimate; (c) supplying the outdoor air only when the occupant is at the desk. The strategy to control the supply air temperature does not affect the energy consumption in a hot and humid climate.
Original languageEnglish
JournalEnergy and Buildings
Volume42
Issue number5
Pages (from-to)699-707
ISSN0378-7788
DOIs
Publication statusPublished - 2010

Keywords

  • Personal environmental control system
  • Control strategy
  • Occupants' comfort
  • Personalized ventilation
  • Hot and humid climate
  • Energy saving

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