New IBEA Annex 87 on Personalized Environmental Control Systems (PECS)

DESCRIPTION OF THE SESSION

Personalized Environmental Control System (PECS) with the functions of heating, cooling, ventilation, lighting and acoustic has advantages of controlling the localized environment at occupant’s workstation by their preference instead of conditioning an entire room. This improves personal comfort, health and energy efficiency of the entire heating, ventilation and air-conditioning (HVAC) system substantially. Personalized ventilation will also protect against cross contaminations, which are critical in open-plan offices and work places with close distance. There will in the future be an increasing interest and market for PECS as buildings will need to be pandemic-proofed. The application is for work places with mainly sedentary activity such as offices (such as open-plan, banks, control centers). Due to the pandemic, where many people worked at home, there will be an increase in home working places where PECS may be a solution.

A new IEA EBC Annex (Annex 87 – Energy and Indoor Environmental Quality Performance of Personalised Environmental Control Systems) has recently started and has the overall objective to establish design criteria and operation guidelines for PECS and to quantify the benefits regarding health, comfort, energy, and cost performance. This includes also control concepts and guidelines for operating PECS in spaces with general ambient systems for heating, cooling, ventilation and lighting. The scope includes all types of PECS for local heating, cooling, ventilation, air cleaning, lighting and acoustic. It includes desktop systems, which are mounted on desks or integrated in furniture or chairs with heating/cooling and ventilation functions. It also includes wearables, where heating/cooling and ventilation are included in garments or devices attached to occupants’ body.

The session will introduce the new Annex and discuss several aspects related to the new Annex to gather input from the conference audience.

OBJECTIVES OF THE SESSION

  • Introduce IEA EBC Annex 87
  • Discuss advantages and limitations of PECS
  • Identify knowledge gaps regarding PECS (inputs with both from academic and engineering community)
  • Present possible interactions between IEA EBC Annex 87 and other annexes, with a focus on IEA EBC Annex 80 – Resilient Cooling of Buildings

SESSION PROGRAMME

    • Introduction to IEA EBC Annex 87 Bjarne W. Olesen, International Centre for Indoor Environment and Energy, Technical University of Denmark, Denmark
    • Advantages and limitations of PECS Ongun Berk Kazanci, International Centre for Indoor Environment and Energy, Technical University of Denmark, Denmark
    • Knowledge gaps regarding PECS Mariya P. Bivolarova, International Centre for Indoor Environment and Energy, Technical University of Denmark, Denmark
    • PECS and resiliency: An interaction between IEA EBC Annexes 87 and 80 Ongun Berk Kazanci, International Centre for Indoor Environment and Energy, Technical University of Denmark, Denmark

SESSION CHAIRS

    • Bjarne W. Olesen, International Centre for Indoor Environment and Energy, Technical University of Denmark, Denmark
    • Ongun Berk Kazanci, International Centre for Indoor Environment and Energy, Technical University of Denmark, Denmark

SESSION DURATION

  • 90 minutes