|No oil, no gas – only the die optimal utilization of solar energy. Our EnergyManagementSystem (EMS) facilitates solar heating and cooling 365 days in year. The EMS connects solar collectors, heat pump and storage tank technology into a fascinating total solution.
You wish to heat a building with help of only solar energy and without direct combustion of oil or gas? No problem: The structural body does not have to be erected in particularly expensive or energy saving construction any more, the compliance of the prevalent heat insulation ordinance suffices.
The collector system is accordingly integrated into the building with visual and economic suitability. Important: The collector area also uses diffuse radiation and delivers by its year-long operation the large part of the necessary energy demand. The collector basically serves the integrated buffer storage tank. However, in order to store the total solar energy produced by the collector as completely as possible and to utilize at a later point of time for the heating, the ground plate and the soil under the building in the “warm” season is used as storage tank excess energy. The energy necessary for heating and service water production is secured over a heat pump on demand. This has its feed line directly from collector and/or serves itself with the excess solar energy stored under the ground plate. In times without solar output, the heat pump uses this stored energy as source.
For sensible utilization of the solar-generated energy for the building heating, low temperature heating areas are required in form of floor- or wall heating. The necessary temperatures for this are produced over the system all year. The EMS-concept facilitates the maximum utilization of solar energy for the building heating and the economical, highly efficient operation of a heat pump at minimum operational costs. Beside independence from the future developments of the oil- and gas prices, the large-area low temperature heating offers comfort and well-being. The solar energy is stepwise stored in EMS with priority sequence or supplied to the loads. A control- and hydraulics unit specially developed by IMMOSOLAR always feeds the optimal source temperature from the solar collector and/or from the underground storage tank to the heat pump. Due to the constant high source temperature (18° C) and therefore small temperature rise, the heat pump reaches extremely high coefficient of performance (over 6). In comparison to other concepts, the solar heat and geothermal energy combining, here solar energy is directly fed to the heat pump and not only a bivalent buffer storage is used as interface. In the IMMOSOLAR-System, the solar energy stored under the ground plate is utilized with an essentially higher storage tank capacity. The IMMOSOLAR-heat pump is directly run by solar energy! Medium and low collector temperatures are completely utilized in the System: for component activation, as heat pump source as well as long-term storage tank (underground brine storage tank). The collector area is located on the roof area of the building oriented to the south and can partially replace the roof covering (in in-roof installation). In order to avoid condensate at low return line-temperatures in heat pumps operation, emphasis was put upon an optimized breathing in collector development.
Storage tank – Combi-storage tank
In order to prepare the necessary energy for heating and service water permanently, a Combi-storage tank is inserted. In this unit the energy generated from the collector is directly stored. If the direct solar energy does not suffice, then the required energy is generated by the heat pump. In order to reduce the chopping of the heat pump and to ensure an optimal operation, the excess energy is stored in buffer storage tank according to the patented IMMOSOLAR-Router principle and fed later to the building again optimizing the need and energy.
Furthermore, the storage capacity of the building mass is utilized. For this, a pipe mat system is laid in the floor. This is supplied with the excess energy of the collector. The thermoactive component system (TABS) is heated to 22° to 25° C and thus the structural body develops inertia against temperature fluctuations from outside and forms an additional heating area for the rooms within. It forms an optimal storage tank, as the solar energy is stored without losses, namely in the building, where it belongs. The TABS is also outstandingly suitable for active and passive cooling of buildings.
Underground storage tank
The underground storage tank comprises parts of the ground plate and the ground used as storage mass under the building. In this storage tank, the energy that cannot be taken by the buffer storage tank is stored. In the “warm” season, the underground storage tank can be heated to up to 35 degrees C. This stored energy is again withdrawn from the System and e.g. supplied to the heat pump for heating and hot water production as source temperature (energy source). The underground storage tank thus serves for intermediate storage of excess energy and supplies the heat pump with ground heat in times without sufficient solar output.
For the year-long heating and hot water production of the buildings, the energy produced by the collector does not suffice. This additional energy demand is secured by a heat pump. The heat pump is effective and efficiently integrated into the total system. By its supply from the collector, it also utilizes a small amount of solar energy and raises it to the necessary temperature level. By the solar integration, the heat pump delivers around 40 % more heat than in conventional operation. It is about an optimized heat pump, which can also process the high source temperatures. For the cooling function, cooling energy generated during the operation of the heat pump is stored in refrigerating storage tank. On demand over the room temperature control, this is released to the floor- or wall heating system.