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Application of model based predictive control for water-based floor heating in low energy residential buildings

Henrik Karlsson (Institutionen för bygg- och miljöteknik, Byggnadsteknologi) ; Carl-Eric Hagentoft (Institutionen för bygg- och miljöteknik, Byggnadsteknologi)
Building and Environment (0360-1323). Vol. 46 (2011), 3, p. 556-569.
[Artikel, refereegranskad vetenskaplig]

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.

Nyckelord: Floor heating, Predictive control, Low temperature heating, Optimisation



Denna post skapades 2011-03-04. Senast ändrad 2016-08-19.
CPL Pubid: 137617

 

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Institutioner (Chalmers)

Institutionen för bygg- och miljöteknik, Byggnadsteknologi

Ämnesområden

Byggnadsteknik

Chalmers infrastruktur