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International Journal of Fluid Mechanics Research

Publication de 6  numéros par an

ISSN Imprimer: 2152-5102

ISSN En ligne: 2152-5110

The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) IF: 1.1 To calculate the five year Impact Factor, citations are counted in 2017 to the previous five years and divided by the source items published in the previous five years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) 5-Year IF: 1.3 The Eigenfactor score, developed by Jevin West and Carl Bergstrom at the University of Washington, is a rating of the total importance of a scientific journal. Journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Eigenfactor: 0.0002 The Journal Citation Indicator (JCI) is a single measurement of the field-normalized citation impact of journals in the Web of Science Core Collection across disciplines. The key words here are that the metric is normalized and cross-disciplinary. JCI: 0.33 SJR: 0.256 SNIP: 0.49 CiteScore™:: 2.4 H-Index: 23

Indexed in

Effects of Exfiltration on Moisture and Frost Accumulation in a Fibrous Insulation

Volume 25, Numéro 4-6, 1998, pp. 506-519
DOI: 10.1615/InterJFluidMechRes.v25.i4-6.50
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RÉSUMÉ

Experiments were performed of heat and moisture transport, coupled with air exfiltration, through a glass-fiber slab. The measured data, showing a coupling effect of air movement with moisture and frost accumulation, are compared to a numerical model. A constant airflow, at a rate compatible to typical building envelope air exfiltration rates, passes through the test slab from the warm side of the slab (at a room temperature and for various humidity levels) to its cold side (below the triple point of water). Through temperature, heat flux and moisture accumulation measurements, the increase in heat loss due to the transport of moisture by moist air is demonstrated. A one-dimensional, numerical model, including convection and vapor diffusion in porous media, is developed to simulate the process under the test, conditions. Comparisons between the experimental and numerical results are favorable. It is shown that the increase in moisture accumulation under frosting condition could be an order of magnitude higher than for the temperature range above freezing. The conduction heal, loss can be up to 300% higher with air exfiltration, depending on the exfiltration rates, as compared to the moisture diffusion-only process (i.e., no exfiltration) under the same temperature boundary conditions.

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