کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5017184 | 1466393 | 2016 | 18 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
An experimental investigation on flow boiling heat transfer of R-600a in a horizontal small tube
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی مکانیک
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
The local heat transfer coefficient and flow pattern were studied experimentally during flow boiling of R-600a inside a horizontal small tube (inner diameter IDâ=â1.0âmm). The effects of heat flux, mass velocity and vapor quality have been investigated. The tests were conducted at heat fluxes from 5 to 60âkWâmâ2, mass velocity from 240 to 480âkgâmâ2âsâ1 at 25â°C saturation temperature. Results show that flow patterns are related to the heat transfer coefficient. Convective boiling was found to be predominant during the tests. Nucleate boiling was predominant only in low vapor quality region. The resultant database was compared against predicting correlation available in literature for heat transfer coefficient. It was found that mass velocity have significant influence of heat transfer coefficients.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Refrigeration - Volume 72, December 2016, Pages 97-110
Journal: International Journal of Refrigeration - Volume 72, December 2016, Pages 97-110
نویسندگان
Jeferson Diehl de Oliveira, Jacqueline Biancon Copetti, Júlio César Passos,