PE-film greenhouses with maximum heat insulation and CO2 neutral heating according to the concept of heat quantity
The focus in Munich and Neustadt is set on minimizing heat demand and supplying the greenhouses for vegetable production under glass with CO2-neutral energy. A multi-layer film envelope in combination with an energy shield is intended to maximize the thermal insulation of the greenhouse cover. The remaining energy demand is to be covered by an average performance boiler for different (wood-) heating materials (various pellets, wood chips, waste materials); boiler size 150 - 220 kW for long operating time with automatic supply and disposal. This boiler is a significantly under-planned design (which leads to low investment), so that the current heat demand can not always be met. For compensation and decoupling of the boiler and removal performance, the boiler works independently from the current heat demand towards a energy reservoir, from which, if necessary, the heat can be removed. The boiler and the reservoir will run heat driven, whereas the quantity of energy fed to the reservoir is planned by a storage management according to the expected consumption. The management strategy is one of the research questions.
Another focus is set on developing an automated process documentation (Transparent Production).