Heat transfer distribution and flow characteristics in a channel with perforated-baffles

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dc.contributor.authorEiamsa-ard, Smith
dc.contributor.authorSripattanapipat, Somchai
dc.contributor.authorSaysroy, Anucha
dc.contributor.authorPromvonge, Pongjet
dc.contributor.authorMaruyama, Naoki
dc.contributor.authorHirota, Masafumi
dc.date.accessioned2026-08-06T10:38:06Z
dc.date.available2026-08-06T10:38:06Z
dc.date.issued2022-11-01
dc.description.abstractThe current paper reports the prediction of heat transfer performance of a channel with a modified perforated-baffle in a square wings (SW-PB) form. Numerical results include flow/temperature field, local heat transfer distribution, and thermal performance of a channel installed with the transverse solid baffle (TB), perforated-baffle (PB), and perforated-baffle with square wings (SW-PB). The simulation results demonstrated that TB brought a large recirculation flow, PB induced small recirculation and SW-PB produced several impinging jets as well as recirculation flows. Heat transfer rates given by PB were lower than those provided by TB and SW-PB by around 6.8% and 7.3%, respectively which were accompanied by lower friction losses by about 11.8% and 3.6%, respectively. Although, SW-PB gave higher heat transfer, the assessment of thermal performance factor (TPF) showed that the benefit from lower friction losses was more important. Under the same pumping power, TPFs assisted by SW-PB were higher than that assisted by PB and TB by 6.0% and 3.3%, respectively. The highest TPF of 1.2 was captured by SW-PB at Re = 9,000.
dc.identifier.citationEnergy Reports, 8, 420-426, 2022
dc.identifier.doi10.1016/j.egyr.2022.10.079
dc.identifier.issn23524847
dc.identifier.other2-s2.0-85140400994
dc.identifier.urihttps://dspace.kmitl.ac.th/handle/123456789/13513
dc.sourceEnergy Reports
dc.subjectHeat transfer enhancement
dc.subjectMultiple impinging jets
dc.subjectPerforated-baffle
dc.subjectPerforated-baffle with square wings
dc.subjectTransverse solid baffle
dc.titleHeat transfer distribution and flow characteristics in a channel with perforated-baffles
dc.typeArticle

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