INVESTIGATIONS OF THE PERFORMANCE OF DOMESTIC CENTRAL HEATING SYSTEMS AND OF REDUCTIONS IN BUILDING FABRIC LOSSES
A description of the characteristics of a pair of houses in Oxfordshire (UK) and a set of 8 houses in Cambridgeshire (UK), specially instrumented, equipped with simulated occupancy and designed to provide an automatically operating test bed for accurately assessing energy conservation measures under realistic conditions, is presented. The description includes the constructional, thermal and air infiltration properties together with the gas central heating systems and controls. On the basis of conditions simulated in the test houses and from laboratory studies the following findings are drawn: (a) On the controls side: an electronic room-stat is shown to be potentially worthwhile, a flow switch used in conjunction with thermostatic radiator valves is recommended and weather compensator control is shown to be of doubtful value in such compact houses. For both pumped and gravity fed domestic hot water services full cylinder stat control of the hot water temperatures is shown to be cost effective. (b) Savings from secondary glazing and sealed double glazing units are discussed: more work is in hand to quantify the savings from the latter. Measurements of savings from 100 mm and 200 mm of loft insulation indicate that 200 mm is cost effective in these houses. (c) Good comparisons of actual energy consumption against those predicted from simple steady state calculations are shown where reliable information is available on the thermal properties of the buildings. (d) Finally performance data for the switching operation of selected room-stat types has been measured in a specially constructed test rig. This data has application in the computer simulation of these controls and in matching thermostats for experimental field use.
Bibliographic Reference: EUR 10433 EN (1986) MF, 145 P., BFR 300, BLOW-UP COPY BFR 725, EUROFFICE, LUXEMBOURG, POB 1003
Availability: Can be ordered online
Record Number: 1989124107500 / Last updated on: 1987-01-01
Available languages: en