Abstract
Effect of main structural parameters of shutter baffle heat exchanger with a triangle tube layout in the shell side on heat transfer and flow resistance performance is studied in the article. A periodic whole cross-sectional computation model is built for the heat exchanger in the numerical study. The effects of structural parameters are analyzed, including assembly mode of shutter baffles, shutter baffle pitch, strip inclination angles, and strip widths. The correctness and accuracy of numerical simulation method are confirmed with a laser Doppler velocimeter experiment. Based on the research results, correlations for heat transfer coefficient and pressure drop in shell side are presented. Using the field synergy principle, the heat transfer enhancement mechanisms of segmental baffle heat exchanger and shutter baffle heat exchanger in shell side are analyzed.
Highlights
The shell-and-tube heat exchanger (STHX) is one of the most widely used heat exchangers in many industry fields, such as petroleum, chemistry engineering, energy, power, and so on, for its wide applicability, simple structure, sturdy and durable, less price, and convenient maintenance.[1]
Effect of some structural parameters, such as assembly mode of shutter baffles, shutter baffle pitches, strip inclination angle on shutter baffle, and strip width, on the fluid flow and heat transfer is analyzed for the shutter baffle heat exchanger with triangle tube layout
When fluid in shell side is in the turbulent state, the heat transfer coefficient and pressure drop are mainly related with the shell side equivalent diameter de, fluid characteristic constant m/mw, mean flow velocity u, baffle pitch Lb, and strip inclination angle u
Summary
The shell-and-tube heat exchanger (STHX) is one of the most widely used heat exchangers in many industry fields, such as petroleum, chemistry engineering, energy, power, and so on, for its wide applicability, simple structure, sturdy and durable, less price, and convenient maintenance.[1]. Effect of some structural parameters, such as assembly mode of shutter baffles, shutter baffle pitches, strip inclination angle on shutter baffle, and strip width, on the fluid flow and heat transfer is analyzed for the shutter baffle heat exchanger with triangle tube layout.
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