An approximate analytical prediction about thermal performance and optimum design of pin fins subject to condensation of saturated steam flowing under forced convection

Kundu, Balaram; Ghosh, Gourab

doi:10.1016/j.ijrefrig.2008.12.006

Cited by 15 publications

(8 citation statements)

References 15 publications

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“…For these cases, and where the low thermal conductivity tube materials are used, it is suggested that a conjugate model be developed, possibly along the lines of [19] or [32][33][34].…”

Section: Resultsmentioning

confidence: 99%

“…More recently, Kundu and Lee [32] reported optimized profiles for vertical fins of variable cross section subjected to condensation of saturated vapour under free convection, while Kundu [33] and Kundu and Ghosh [34] extended the analysis to horizontal circular pins under free and forced convection condensation respectively. These included the conjugate effects of conduction in the pins.…”

Section: Introductionmentioning

confidence: 99%

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A semi-empirical model for free-convection condensation on horizontal pin–fin tubes

Ali

Briggs

2015

International Journal of Heat and Mass Transfer

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a b s t r a c tA simple semi-empirical correlation accounting for the combined effect of gravity and surface tension has been developed for condensation on horizontal pin-fin tubes. The model divides the heat transfer surface into five regions, i.e. two types of pin flank, two types of pin root and the pin tip. Data for three fluids (i.e. steam, ethylene glycol and R113) condensing on eleven tubes with different geometries were used in a minimization process to find three empirical constants in the final expression. The model gives good overall agreement (within ±20%) with the experimental data, as well as correctly predicting the dependence of heat-transfer enhancement on the various geometric parameters and fluid types.

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“…For these cases, and where the low thermal conductivity tube materials are used, it is suggested that a conjugate model be developed, possibly along the lines of [19] or [32][33][34].…”

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A semi-empirical model for free-convection condensation on horizontal pin–fin tubes

Ali

Briggs

2015

International Journal of Heat and Mass Transfer

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“…This process is characterized by the *Corresponding author. [14][15][16][17][18][19][20][21] formation of a thin film of liquid that drains under the action of gravity or surface tension or both. The presence of a film creates a barrier between the vapor and the cooled surface and retards the condensation process.…”

Section: Introductionmentioning

confidence: 99%

“…Hamed and H.A. Al-Otaibi / Desalination and Water Treatment 50 (2012) [14][15][16][17][18][19][20][21] of the simulated inundation were carefully controlled.…”

Section: Introductionmentioning

confidence: 99%

“…At this depth level the heattransfer coefficient for the wire-wrapped tube was almost twice that of the smooth tube. An approximate analytical method has been suggested for solving the governing equation for horizontal pin fins subject to condensation while saturated steam was flowing under laminar forced convection [21]. Adomian decomposition method was used for the determination of the temperature distribution, performance, and optimum dimensions of pin fins with temperature dependent thermal conductivity under condensation of steam on the fin surface.…”

Section: Introductionmentioning

confidence: 99%

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Enhanced film condensation of steam on a horizontal finned tube

Hamed

Al-Otaibi²

2012

Desalination and Water Treatment

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A heat transfer experimental setup was designed and fabricated to simulate the performance of steam condensers of the multistage flash process. The test section consists of a horizontal single tube shell and tube steam condenser. The experimental study was devised to evaluate the impact of using fin-tubes rather than plain tubes to augment the heat transfer rate during the condensation of steam. Three integral finned tubes of three different materials namely Cu/Ni 90/10, Cu/Ni 70/30, and Al/Br, were tested for heat transfer performance of steam. For each material, three tubes with fin densities of 11, 13, and 15 fins per inch (FPI) were tested. The heat transfer coefficient of the smooth plain tubes was used as a baseline for comparing the heat transfer performance of the high performance enhanced tubes. For the three tested materials, tubes of fin density 11 FPI consistently produced the highest heat transfer enhancement factor followed by 15 and 13 FPI tubes, respectively. For seawater velocity of 2.5 m/s, Al-Br finned tubes yielded the maximum enhancement level followed by Cu-Ni 70/30 and Cu-Ni 90/10, respectively.

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Radiation effect on optimum design analysis of a constructal T-shaped fin with variable thermal conductivity

Bhanja

Kundu

2011

Heat Mass Transfer

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An approximate analytical prediction about thermal performance and optimum design of pin fins subject to condensation of saturated steam flowing under forced convection

Cited by 15 publications

References 15 publications

A semi-empirical model for free-convection condensation on horizontal pin–fin tubes

A semi-empirical model for free-convection condensation on horizontal pin–fin tubes

Enhanced film condensation of steam on a horizontal finned tube

Radiation effect on optimum design analysis of a constructal T-shaped fin with variable thermal conductivity

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