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THESE_EL HAMMAMI.pdf - Toubkal

THESE_EL HAMMAMI.pdf - Toubkal

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4.4 Résultats et discussions 75W *1.00.80.60.40.2112233441 z * =13 z * =902 z * =104 z * =300T=5KT=30KRe 0=1000Hr=100%P 0=1atm0.01.2 1.4 1.6 1.8 2.0FIG. 4.3 – Effet de la différence de température ∆T sur la fraction massique adimensionnellede vapeur d’eau pour différentes section du tube.Nu z250200150100T=5KT=15KT=30KRe 0=1000Hr=100%P 0=1atm50010 z * 100 300FIG. 4.4 – Effet de la différence de température ∆T sur la variation du nombre Nuseeltlocal Nu z .

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