The summer is rapidly approaching, and now is the right time to prepare your properties for the warm season. In summer it is important to get the temperature and ventilation settings right so that the indoor climate remains comfortable. With modern technology it is possible to significantly improve the indoor climate conditions and conserve energy.
In office rooms, one should switch off unused electrical appliances and heating radiators which not only heat up the surrounding air but also consume power unnecessarily. If forced ventilation is used in the property, do not ventilate through open doors or windows because it interferes with the mechanical ventilation. Blinds give good protection against the sun.
A professional’s checklist:
- Make sure that the refrigeration equipment is serviced by a qualified technician before the start of the summer season. In this way, possible problems can be fixed in time.
- Check the correct settings for the cooling plants and carry out test runs prior to the cooling season. This can be carried out remotely if the property is linked to Caverion’s control room.
- Shut off the central heating for the summer. This prevents the radiators from heating the premises during the cooling season. If the central heating system is not shut off, make sure that the heating control curve is correct.
- Apply different automatic indoor temperature settings for the cooling season and heating season. In this way, you will prevent unnecessary heating/cooling in summer and winter, respectively.
- Use automation to take advantage of night-time ventilation. You can reduce the daytime air-conditioning need by bringing in cool night air through the ventilation system.
- Take advantage of heat recovery and cool down the incoming air. When the air outside is warmer than the exhaust air from the premises, you can utilise the heat recovery system to cool down the warm incoming air.
Sea water used for cooling in Musikkens Hus, Denmark
In Aalborg, Denmark, by the Limfjord, it is only natural to utilise the fjord for cooling purposes. Also Musikkens Hus (House of Music), situated close to the fjord, uses sea water for cooling for most of the year. An intake is located five metres below the surface of the water, sucking the cool water through a heat exchanger. In summer, when the need for cooling is at its highest, compressors are needed as well, but for eight months of the year, the only cost arising from cooling is that caused by the pumping of water. The fjord water thus helps reduce costs and conserve energy. Bjarne Heath Christensen, Project Manager, explains that while the technique is known, it is not yet widely applied. Caverion is responsible for all the building systems in Musikkens Hus.