For the static tubular mixer with concentric tube-arrays,semi-uniform and isotropy turbulent flow takes place because of the effect of boundary layer in the arrayed tube,which can achieve rapid mixing.

A numerical simulation is performed for the threedimensional laminar conjugated heat transfer in a concentric tube recuperator with longitudinal fins.

The thermal energy storage unit involves a triplex concentric tube with phase change material (PCM) filling in the middle channel.

The development and application of concentric multi-barrel separated water injection technology for offshore oilfield;