Abstract
A new concept of “Sideling Flow” in shell side of shell-and-tube heat exchanger is presented, which is relative to the cross flow, longitudinal flow and helical flow in heat exchanger. A type of new energy saving shell-and-tube heat exchanger with sideling flow in shell side, shutter baffle heat exchanger is invented, which exhibits the significant heat transfer enhancement and flow resistance reducement performance. The “Field Synergy Principle” is adopted to analyze the heat transfer enhancement mechanism of sideling flow, it is indicated that the shutter baffle heat exchanger exhibits the perfect cooperativity between velocity field and temperature grads field. Effects of the structure and processing parameters on the fluid flow and heat transfer are also investigated through numerical simulation, both the correlative equations of heat transfer coefficient and pressure drop in shell side are deduced, which provide references for the design and popularization of this new type heat exchanger.
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