The influence of tube bundle geometry on cross-flow boiling heat transfer and pressure drop
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Cited by (11)
Experimental assessment of enhanced 2x3 Semi-Closed microstructure tube bundle as an alternative in shell and tube heat exchangers
2023, Applied Thermal EngineeringNumerical investigation on the thermal-hydraulic performance of separated structure steam generator with different tube arrangements
2022, Annals of Nuclear EnergyCitation Excerpt :Schrage et al. (1988) found that the variation of the two-phase friction multiplier is different under different flow patterns for air-water mixtures flow across the square in-line tube bundle. Jensen et al. (1989) investigated the heat transfer performance and pressure drop of boiling flow across both staggered and in-line tube bundle using R113. The heat transfer coefficient (HTC) and pressure drop were generally larger in the staggered tube bundle than in the in-line tube bundle.
A critical review of parameters governing the boiling characteristics of tube bundle on shell side of two-phase shell and tube heat exchangers
2022, Thermal Science and Engineering ProgressCitation Excerpt :The performance of the inclined tube bundle is the lowest. Jensen et al. [46] reported that at a constant mass flux the HTC performance was similar at high heat fluxes and low mass flux for two different geometries, staggered and inline. However, at low heat flux and higher mass flux the staggered tube bundle performance was greater with higher HTC.
Convective boiling of R-123 on enhanced-tube bundles
2019, International Journal of Heat and Mass TransferCitation Excerpt :Ultimately, the presented void fraction and two-phase friction multiplier predicted the bundle pressure drop for R-113. Jensen et al. [16] studied the effect of tube geometry on a smooth tube bundle testing in-line and staggered tube bundles with P/D 1.3 and 1.7 for each tube bundle. They reported that at low heat flux, the larger tube pitch showed a higher heat transfer coefficient, while at medium heat flux, the heat transfer coefficient showed insignificant dependency on tube pitch.
Experimental investigation on pressure drop characteristics of two-phase hydrocarbon mixtures flow in the shell side of LNG spiral wound heat exchangers
2017, Applied Thermal EngineeringCitation Excerpt :The existing studies on two-phase pressure drop characteristics across tube bundles cover the working fluids of air/water mixtures [9–14], nitrogen/water mixtures [15], R113 [16], R134a, R410A, R507A [17], and R236fa [18,19], but there is no study for hydrocarbon mixtures [20]. These studies show that, the two-phase pressure drop decreases with increasing mass velocity in bubbly flow pattern, and increases with increasing mass velocity in spray and slug flow patterns [16]; an increment of tube pitches leads to an increase of the two-phase frictional pressure drop across inline tube bundles, but has no effect on the frictional pressure drop across staggered tube bundles [21–24]; an increasing mass velocity results in an increase of downward flow pressure drop when the Martinelli parameter (Xtt) is larger than 0.2, but has no impact when the Martinelli parameter (Xtt) less than 0.2 [11]. However, in the shell side of an LNG SWHE, the working fluids are hydrocarbon mixtures, and the thermophysical properties are much different from those of non-hydrocarbon refrigerants, which may lead to different pressure drop characteristics from those in the existing research.
Convective boiling of R-134a on enhanced-tube bundles
2016, International Journal of Refrigeration
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