Gray Box Time Variant Clogging behaviour and Pressure Drop Prediction of the Air Filter in the HVAC SystemHossein Alimohammadi, Kristina Vassiljeva, Eduard Petlenkov, Martin Thalfeldt, Alo Mikola, Tuule Mall Kull and Ahmet KöseE3S Web Conf., 246 (2021) 10002DOI: https://doi.org/10.1051/e3sconf/202124610002