Skip to main content
Practical use of CO2 sensors for early life cycle energy and comfort performance
Back To All Knowledge Items

Practical use of CO2 sensors for early life cycle energy and comfort performance

Standard Rate
FREE
Member Rate
FREE
Purchase

Back to 2016 Symposium Overview

Session 2 Paper 2, Heriot-Watt University Edinburgh, 14-15 April 2016

Download full paper using download links above or download slides

Post-occupancy commissioning for comfort and energy consumption requires knowledge of real occupancy patterns to assess efficiency of control strategies in use. CO2 has proven to be a useful proxy for occupation density. However the currently proposed methods require training periods and accurate sensor calibration, which would not be justified for short term measurements on newly occupied buildings.

In this paper we present a method to estimate real occupancy patterns based on simple CO2 concentration variations detection. Wireless CO2 sensors have been installed in a teaching room. It is demonstrated that variations of CO2 concentration give a useful insight on the use of spaces and can help commissioning engineers and facility management to remotely detect mismatches between control strategies and occupants’ use of a building.