Load Management in Electrically Heated Buildings: Influence of Increased Indoor Air Temperature during the Night on Heat Load and Heat Requirement

摘要

Strategies aiming at a reduction of electricity consumption, for heating residential houses, during daytime (06.00-22.00) by raising the heating set point during nighttime have been studied by computer simulations. The conclusions are: The energy requirement for heating during the day (06.00-22-00) can be reduced to 50% by raising the temperature 4 C during the night. The total energy requirement raises 15% compared with the day set point during both day and night; the maximum heat load raises 2-4 times compared with constant heating set point; a strategy with the heating set point decreased to 18 C during the day and increased to 22 C during the night gives 1-1.5 C lower sensible temperatures during a cloudy and cold day than the strategy with 20 C day and night. (Copyright (c) Swedish Council for Building Research, Stockholm 1989.)