 A study of the air-side heat transfer and pressure drop characteristics of tube-fin [`]no-frost' evaporatorsJader R. Barbosa , Cláudio Melo, Christian J.L. Hermes and Paulo J. Waltrich Applied Energy, 2009, vol. 86, issue 9, 1484-1491 Abstract: A study is presented on the influence of the air flow rate and surface geometry on the thermal-hydraulic performance of commercial tube-fin [`]no-frost' evaporators. A specially constructed wind-tunnel calorimeter was used in the experiments from which data on the overall thermal conductance, pressure drop, Colburn j-factor and Darcy friction factor, f, were extracted. Eight different evaporator samples with distinct geometric characteristics, such as number of tube rows, number of fins and fin pitch were tested. Semi-empirical correlations for j and f are proposed in terms of the air-side Reynolds number and the finning factor. A discussion is presented on the performance of the evaporators with respect to specific criteria such as the pumping power as a function of heat transfer capacity and the volume of material in each evaporator. Keywords: Tube-fin; evaporator; Experimental; analysis; Correlation; Frost-free; refrigerator (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:eee:appene:v:86:y:2009:i:9:p:1484-1491 Ordering information: This journal article can be ordered from Access Statistics for this article Applied Energy is currently edited by J. Yan More articles in Applied Energy from Elsevier |
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