6.2.12. Buildings

The properties that constitute a building are represented as processes. The processes are:

Heating:

Representing the energy demands for the heating of the building. It is defined by the energy demand per year and optionally the desired indoor temperature and the necessary temperature of the heating system, which have both a default value of 20 °C. In addition the start and end date of the heating period must be entered.

Cooling:

Representing the energy demands for the air conditioning of the building. It is defined by the energy demand per year and optionally the desired indoor temperature, the necessary temperature of the cooling system which have both a default value of 10 °C and the hours of occupation of the building which defaults to 24 hours. In addition the start and end date of the cooling period must be entered.

Hot water:

Representing the energy demands for the heating of the domestic hot water. It is defined by the daily consumption of hot water and the hours of occupation of the building which defaults to 24 hours. The demand is presumed to be constant over the year and the process to be heating water with a temperature of 10 °C to a temperature of 50 °C before usage.

If the properties that constitute the heating, cooling or hot water demands of a building are set to zero, the respective processes are removed from the industry model.

The industry holidays are taken into account for these processes as they are for all other processes as well. The scale factor of the processes defaults to 0, which means that heating, cooling and the hot water consumption a presumed to stop during the holidays.

You can change the holiday scale factor of these processes in the “Schedule” tab in the “Process” panel. This scale factor changes are remembered even if the building parameters are changed later, while any other changes to the schedule of these processes are reset by any changes to the underlying building.

The time schedule represented in the “Schedule” tab is the nominal one, i.e. it does not show the scaling during the holidays periods. Holidays breaks can be properly seen in the “Monthly demand” panel of the “Energy statistics”.

The holidays of a building, which can be set for each building are only taken into account for the hot water and cooling processes and ignored for the heating one. The starting and ending dates of the holidays as well as for the heating and cooling periods are thought of as inclusive. E.g. the whole month march would start on 1st of March and end on the 31st of March while a whole year can be expressed as starting on the 1st of January and ending on the 31st of December. The year of the given dates is generally ignored and simply fixed to 2007, which is the reference year that is used by EINSTEIN internally.