Application of model based predictive control for water-based floor heating in low energy residential buildings
Artikel i vetenskaplig tidskrift, 2011

A model based predictive control method is applied in order to determine the optimal supply fluid temperature in the case of concrete embedded water-based floor heating in low energy residential buildings The aim of the control is to keep the indoor temperature within a defined comfort interval The forthcoming supply fluid temperature is obtained through a numerical optimisation based on a prediction of the upcoming heat demand The elementary response function which is the basis for the method is obtained from a numerical control volume model and as an alternative from a simplified 2-node lumped model The accuracy of the results obtained from the simplified model is surprisingly good in comparison to the detailed numerical model The control method is applied for a single room for which a perfect prognosis of the heat demand exists The results show a fairly steady optimised supply fluid temperature.

Predictive control

Low temperature heating

Optimisation

Floor heating

Författare

Henrik Karlsson

Chalmers, Bygg- och miljöteknik, Byggnadsteknologi

Carl-Eric Hagentoft

Chalmers, Bygg- och miljöteknik, Byggnadsteknologi

Building and Environment

0360-1323 (ISSN)

Vol. 46 3 556-569

Ämneskategorier

Husbyggnad

DOI

10.1016/j.buildenv.2010.08.014