Supplying Annual Heating Energy For a Novel Solar Green house Using NIR Reflectors and PCM Storage

In this work, a novel solar greenhouse is investigated. The curved roof of this greenhouse is equipped with a special cover reflects NIR and lets PAR to pass, according to the fact that NIR is unnecessary for the photosynthesis process and PAR is vital for plants growth. Reflected NIR is concentrated in the focal line of curved roof. In the roof focal line, a pipe containing water and Phase Change Material (PCM) is improvised that gathers reflected Energy. Numerical analysis is done for solar irradiance on this greenhouse at 4 days from four different seasons. The results reported as temperature contours and stream lines. Studies reveal that by using a proper isolator in the walls, we can provide whole of needed heating energy all over the year with saved energy in the storage system and there will be no need to more cost for the heating purposes.