کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
660662 1458147 2008 17 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
An improved model for two-phase hydrogen flow dynamics
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
An improved model for two-phase hydrogen flow dynamics
چکیده انگلیسی

Two-phase boiling hydrogen pressure drop is studied in the context of high velocity upflow in a constant, high heat flux, steady state, internal pipe flow environment. The approach of this analysis is to reverse-engineer the best available data to determine mass quality, void fraction, and velocity slip. This is accomplished by applying a one-dimensional, five-equation model, with pressure gradient being the one combined equation. The resulting velocity slips are correlated for high and low pressure conditions. Good agreement is achieved between the pressures predicted using the slip correlations and the measured pressures. Results are in general significantly better than those from the homogeneous equilibrium model.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 51, Issues 11–12, June 2008, Pages 2784–2800
نویسندگان
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