Experimental scheme of sewage convection heat transfer and fouling thermal resistance in pipes

In a sewage-source heat pump system, the flow and heat transfer characteristics of sewage in the heat exchange pipes and the growth features of fouling thermal resistance are the important parameters in the heat exchangers design. Establishes a test bed for convection and heat transfer characteristics in sewage pipes. The analysis results show that the convective heat transfer and the fouling growth process in the sewage pipe are related to the sewage initial velocity and operation time in the heat exchange pipes according to the experimental data. Provides a fouling accumulation prediction model as a reference for the similar problems research.