Environmental impact reduction in greenhouses heating: Biomass-fired absorption heat pump coupled with wood biomass boiler

This paper deals with an interesting application of different technologies to greenhouse heating systems. First, biomass boilers is a mature and affordable technology, showing high efficiency and long lasting devices. As wood biomass is considered as GHG neutral when converted to heat, it is logical to think about its application to greenhouse heating. Second, the thermally activated heat pumps, and more specifically the absorption heat pump, has reached a mature technology, as well. If the thermally activated heat pumps are coupled with short and long term heat storage, this can enhance the overall efficiency of the system. As greenhouse radiant, floor and bench heating systems can exploit low grade thermal energy, and these interconnections generate virtuous circles for the environmental impact reduction related to greenhouse heating systems.