کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
644974 | 1457132 | 2016 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A comparative investigation on the effect of fly-ash and alumina nanofluids on the thermal performance of two-phase closed thermo-syphon heat pipes
ترجمه فارسی عنوان
بررسی تطبیقی اثر نانوفیلد های پروازی خاکستر و آلومینا بر عملکرد حرارتی لوله های گرماسفون بسته دو مرحله ای
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کلمات کلیدی
لوله حرارتی، پرواز خاکستر، آلومینا، نانو سیال،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
چکیده انگلیسی
This study investigates how fly-ash and alumina nanofluids affect the thermal performance of a two-phase closed thermo-syphon heat pipe at various states of operation. This study experimentally investigates the effect of suspending the fly ash obtained from the flue gas released from the cyclones of the YataÄan thermal power plant (Turkey), which contains various metal oxides such as SiO2, TiO2, Al2O3, Fe2O3, CaO and MgO in varying ratios, in water on improving the thermal performance of a heat pipe. Triton X-100 dispersant was used in the study to produce the 2% (wt) fly-ash/water nanofluid via direct-synthesis. A straight copper tube with an inner diameter of 13âmm, outer diameter of 15âmm and length of 1âm was used as the heat pipe. The nanofluid was filled up with 33.3% (44.2âmL) of the volume of the heat pipe. To be able to make experimental comparisons, three different working fluids prepared under the same conditions in the same heat pipe were tested at three different heating powers (200âW, 300âW and 400âW) and three different coolant water flow rates (5âg/s, 7.5âg/s and 10âg/s). A decrease of 30.1% was achieved in thermal resistance (R) when fly-ash containing nanofluid was used to replace water at a heating power of 400âW and with a coolant water flow rate of 5âg/s; similarly, when alumina nanofluid was used as working fluid, the decrease of 5.2% was obtained in thermal resistance under a heating power of 400âW and coolant water flow rate of 5âg/s.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Thermal Engineering - Volume 96, 5 March 2016, Pages 330-337
Journal: Applied Thermal Engineering - Volume 96, 5 March 2016, Pages 330-337
نویسندگان
Adnan Sözen, Tayfun Menlik, Metin Gürü, KurtuluÅ Boran, Faruk Kılıç, Mustafa AktaÅ, M. Tarık Ãakır,