S-SS-3-30 Predictions of Single-phase Flow in TEMA F-shell Heat Exchanger: CFD vs. Xist
December 21, 2022This report compares computational fluid dynamics (CFD) and Xist predictions of single-phase performance in a TEMA F-shell heat exchanger with a sealed longitudinal baffle. In the initial comparison, CFD underpredicted both duty (16% less) and pressure drop (over 50% less). We then represented an F shell in Xist using two E-shell...
Baffle design dictates ideal flow
June 11, 2020Ashley Simmons, Engineer, Technical Support Each heat exchanger has unique requirements due to process constraints, site limitations, or cost concerns. The fundamentals of good design apply to every variety of exchanger. The primary goal of every designer is to optimize exchanger design for the most effective heat transfer possible. One of...
TT-28 Specifying disk-and-doughnut baffles in Xist
December 04, 2019Component: Xist Applicable to: All supported versions (versions 7.3 and 8) Date posted: 5 December 2019 Disk-and-doughnut baffles are an alternative to conventional segmental baffles. Figure 1 illustrates a generic disk-and-doughnut baffle configuration. In many industrial units, tubes are present only in the overlap region between the disk baffles and the...