کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4990656 | 1457105 | 2017 | 37 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Hydrocarbon refrigerants HC290 (Propane) and HC1270 (Propylene) low GWP long-term substitutes for HFC404A: A comparative analysis in vaporisation inside a small-diameter horizontal smooth tube
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
This paper presents the comparative analysis of HC290 (Propane), HC1270 (Propylene), and HFC404A during vaporisation inside a 4 mm smooth tube. The experimental tests were carried out at three different saturation temperatures (5, 10, and 20 °C) at increasing vapour quality up to incipient dryout to evaluate the specific contribution of heat flux, refrigerant mass flux, mean vapour quality, and saturation temperature (pressure). The heat transfer coefficients show a reduced sensitivity to vapour quality, particularly at low refrigerant mass flux, high heat flux, and saturation temperature (pressure), therefore nucleate boiling seems to be the prevailing heat transfer regime in the present experimental tests. Although an early onset of dryout might partially compromise the boiling heat transfer performance of HC290, both the HC tested seem to be very effective as long-term low GWP substitutes for HFC404A and HFC507A.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Thermal Engineering - Volume 124, September 2017, Pages 707-715
Journal: Applied Thermal Engineering - Volume 124, September 2017, Pages 707-715
نویسندگان
Giovanni A. Longo, Simone Mancin, Giulia Righetti, Claudio Zilio,