کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4991443 | 1457113 | 2017 | 27 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Frictional pressure drop correlation for two-phase flows in mini and micro multi-channels
ترجمه فارسی عنوان
همبستگی افت فشار اصطکاک برای جریانهای دو فاز در مینی و میکرو چند کانال
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کلمات کلیدی
جریان دو مرحله ای، افت فشار اصطکاک، چند کاناله میکرو کانال، مینی کانال،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
چکیده انگلیسی
1029 frictional pressure drop data of two-phase flow in mini/micro multi-channels were collected from 11 literatures. This database included 8 working fluids: R134a, R22, R404a, FC-72, water, CO2, R236fa and R245fa. The channel dimension ranged from 0.109 to 2.13 mm. Frictional pressure drop range of the database was from 5 to 150 kPa. The applicability of 11 existing correlations developed for mini/micro single channels to mini/micro multi-channels were evaluated with the multi-channel database. Among the existing correlations, the correlation of Lee-Mudawar predicted the database with the mean absolute percentage error (MAPE) of 35.3%, the correlations of Lee-Garimella and Sun-Mishima had MAPEs within 45.0%. In the process of new correlation development, the database was divided into three categories (namely, 1: gas laminar-liquid laminar, 2: gas turbulent-liquid laminar, 3: gas turbulent-liquid turbulent) in terms of liquid Reynolds number and gas Reynolds number, since gas laminar-liquid turbulent data did not exist in the literature. The newly developed correlation was formulated by a function of the two-phase Reynolds number, Retp, the two-phase viscosity number, Nμtp, and the vapor quality, x. The correlation could predict the measured frictional pressure drop with the MAPE of 18.9%. The correlation demonstrated an excellent performance of the two-phase flow frictional pressure drop prediction in mini/micro multi-channels.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Thermal Engineering - Volume 116, April 2017, Pages 316-328
Journal: Applied Thermal Engineering - Volume 116, April 2017, Pages 316-328
نویسندگان
Xuejiao Li, Takashi Hibiki,