Two-phase Frictional Pressure Drop in Horizontal Channels
محل انتشار: هفتمین کنگره ملی مهندسی شیمی
سال انتشار: 1390
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 609
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شناسه ملی سند علمی:
ICHEC07_010
تاریخ نمایه سازی: 25 فروردین 1394
چکیده مقاله:
This study compares 5 well-known two-phase pressure drop models in horizontal channels and presents one of them as an optimum model. In order to reach this aim a set of data points which contains 90 points is used. This set of data points covers 6 fluids (CO2, R-134a, R-22, R-236ea, R-404a, R410A) which the ranges of diameters, mass fluxes and vapor qualities are 1.4 – 6.1 mm, 200 – 400 kg/m2.s, 0.1 – 0.9, respectively. These models are compared with 3 different methods which use mean absolute error (MAE), relative performance factor (RPF), and percentage of data which fall between ±30% errors bands to compare them. All methods give similar results and present the Müller-Steinhagen and Heck model as the most accuracy model in all
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نویسندگان
Reza Tahery
Chemical Engineering Department, Islamic Azad University, Tehran Central Branch, Tehran, Iran
Sanaz Ehterami
Science Department, Islamic Azad University, Tehran Central Branch, Tehran, Iran