Combination of storage tank, solar collector, controller and gas boiler. Stratified storage tank is divided into ten layers to allow for better resolustion of storage temperatures: top two layers are heated by boiler to T_boiler. Energy for space heating is extracted from top six layers, energy for DHW from all ten layers. Solar energy is fed into bottom to sixth layer.
(Purely technical component without physical modeling.)
(Purely technical component without physical modeling.)
(no remarks)
(no elements)
(no equations)
All components use energy based modeling without consideration of fluid flow.
Heat flow into the storage tank is based on the difference between the temperature of each tank level and the respective source or sink temperature.
Electric energy for the pumps is not accounted for.
(no validation or testing necessary)
(no remarks)
Model created by Anne Hagemeier (anne.hagemeier@umsicht.fraunhofer.de), Nov 2019
Name | Description |
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BoilerCostModel | |
Skymodel | |Collector|choose between HDKR and isotropic sky model |