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Journal of Enhanced Heat Transfer
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ISSN Imprimer: 1065-5131
ISSN En ligne: 1026-5511

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Journal of Enhanced Heat Transfer

DOI: 10.1615/JEnhHeatTransf.2015012471
pages 75-88

EFFECT OF CORRUGATION ANGLE ON THE MOISTURE TRANSFER AND PRESSURE DROP FOR HUMIDIFYING ELEMENT MADE OF CELLULOSE AND PET

Nae-Hyun Kim
Department of Mechanical Engineering, Incheon National University, 12-1 Songdo-Dong, Yeonsu-Gu Inchon, 22012, Korea

RÉSUMÉ

In this study, new humidifying element samples were made, and the moisture transfer and pressure drop characteristics were investigated. Results show that the new sample (cellulose 50% and PET 50%) yielded superior moisture transfer and pressure drop performance than the currently widely used GLASdek (glass wool) and CELdek (cellulose). The jm factors of the new sample are 33%−39% larger than those of GLASdek and 3.2%−13% larger than those of CELdek. On the other hand, f factors of the new sample are 0%−44% smaller than those of GLASdek, and 4.0%−35% larger than CELdek. In general, the jm or f factor increased as corrugation angle increased. The moisture transfer efficiency index (jm/f1/3) was the largest for a 15°/15° sample, followed by 30°/30°, 45°/45°, 15°/45°, and 60°/60° samples. Correlations are developed to predict jm and f factors of the samples having different corrugation angles.


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