Patent ID: 6691526
Filing Date: 2004-02-17
Classification: F24F,Y02E

Abstract:
A method of regulating temperature and ventilation in at least one ventilation unit with a regulating apparatus, the regulating apparatus including at least one heat pump and a thermal store, the method comprising:exchanging thermal energy between outdoor air and an indoor heat carrying fluid medium with the at least one heat pump; distributing the heat carrying fluid medium in the at least one ventilation unit to heat and/or cool the at least one ventilation unit; monitoring natural short tern variations in outdoor temperature due to passages of weather systems and day/night variations; and optimizing the heat pump oonditions based on the monitored natural short term variations such that the at least one heat pump is used only for extracting outdoor heat that is delivered to the indoor heat carrying fluid medium at relative mild/warm periods in the case of warming a building that houses the at least one ventilation unit, or only in relative cool/cold periods for cooling the heat carrying fluid medium for removal of indoor heat in the case of cooling the building, wherein thermal energy that is exchanged with the outdoor air is partly used to meet actual heating or cooling demands for the at least one ventilation unit and the remaining portion of the thermal energy is sent to the thermal store to cover the ventilation unit heating or cooling demands for the at least one ventilation unit during subsequent periods where natural weather conditions are less favourable for exchanging thermal energy from outdoor air by use of the heat pump.