کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7055914 | 1458048 | 2016 | 15 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Nanofluids spray heat transfer enhancement
ترجمه فارسی عنوان
نانوفیلد ها باعث افزایش جذب حرارت می شوند
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کلمات کلیدی
نانوفیلد ها، خنک کننده اسپری، کسری حجم، منحنی خنک کننده گذرا، غلیان،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
چکیده انگلیسی
Spray cooling experiments were carried out to study the effect of seven (7) different types of nanofluids on heat transfer enhancement. Three different concentrations of 0.04%, 0.07%, and 0.1% by volume of Ag, Al, Al2O3, Fe3O4, SiO2, TiO2 and multi-walled carbon nanotubes (MWCNTs) dispersed with deionized (DI) water were tested, and transient as well as steady spray boiling experiments were conducted over a copper flat plate heater 4 cm2 in size with a 1 cm thickness. The spray was issued by a 270 μm full-cone nozzle with a spray height of 30 mm and a spray mass flux of 1.5 Ã 10â3 kg/cm2 s. Both a transient cooling curve and steady boiling curve were obtained. The results revealed that the average heat transfer coefficient (HTC), as well as the associated critical heat flux (CHF), are significantly enhanced, and the enhancement ratio can be up to 1.7 (HTC) and 1.84 (CHF), respectively, corresponding to the DI water as the nanofluids' volume fraction increased from 0.04% to 0.1%.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 94, March 2016, Pages 104-118
Journal: International Journal of Heat and Mass Transfer - Volume 94, March 2016, Pages 104-118
نویسندگان
Shou-Shing Hsieh, Hao-Hsiang Liu, Yi-Fan Yeh,