Most domestic refrigerators are supplied with an energy rating label which con-sumers can use to assess the quality of their appliance. This rating can be deter-mined by (a) testing the refrigerator under specified environmental conditions ac-cording to relevant standards and measuring its power consumption, or (b) analys-ing the refrigeration cycle thermodynamically, or (c) measuring the heat transfer through the walls of the refrigerator cabinet and its doors gaskets. While refrig-erator manufacturers use the first technique, most researchers take the second ap-proach.
For the heating of buildings occupied on a discontinuous basis, intermittent heating control devices are used. This article presents one which incorporates advanced automatic control techniques (predictive temperature control and adaptation of the internal model). The results obtained are compared with those achieved using standard control devices. They are validated on the installation used to determine the initial settings and on slightly different installations in order to compare their robustness with respect to the various characteristics of the heating loop and of the building.
The CLIM 2000 software environment [1] was developed by the Electricity Applications in Buildings Branch of the French utility company, Electricité de France. This software which has been in operation since June 1989, allows the behavior of a whole buildi
Login