Investigation of practical issues in building thermal parameter estimation

Practical issues in implementation of recursive least-squares techniques are investigated through experiments for the robust parameter estimation of a buildingʹs thermal processes. A set of supervisory rules is derived from the basic physical laws and the necessary conditions for stable systems. An approach to robust parameter estimation of a buildingʹs thermal systems is developed and implemented for the real-time identification of an outdoor test-room with high solar gains and radiant heating. Experimental results show that the room temperatures computed by the identified models agree well with the measured data.