این سایت در حال حاضر پشتیبانی نمی شود و امکان دارد داده های نشریات بروز نباشند
Journal of Applied Fluid Mechanics، جلد ۱۴، شماره ۴، صفحات ۱۰۷۷-۱۰۹۰
عنوان فارسی
چکیده فارسی مقاله
کلیدواژه‌های فارسی مقاله
عنوان انگلیسی Effects of Superhydrophobic, Hydrophobic and Hybrid Surfaces in Condensation Heat Transfer
چکیده انگلیسی مقاله The effects of different hydrophobic and superhydrophobic coatings of PDMS, TGIC, SiO2 and a commercial coating called Danphobix on the condensation heat transfer characteristics of the plates were investigated and compared with the uncoated surface. The initial investigation showed that the values of heat flux and condensation heat transfer coefficient of the plate with Danphobix coating are higher than other coatings. Then, the plates with the commercial coating Danphobix were investigated at five different thicknesses to enhance the condensation heat transfer coefficient. Scanning Electron Microscopy analysis of surface with Danphobix coating showed that the hydrophilic-hydrophobic parts of the generated hybrid surface are formed irregularly in a new intertwined manner. According to the obtained results, decreasing the initial thickness of coating to a definite value, the condensation heat transfer coefficient was augmented. By further decrease, the condensation heat transfer coefficient was reduced due to the elimination of the physical structures of the coating against steam. The highest values of condensation heat transfer coefficient and heat flux of plates with Danphobix coating, that was obtained at the coating thickness of 17 µm comprised 65.2% of the surface coating by Danphobix. The results indicated that the heat flux and condensation heat transfer coefficient values of the plate with Danphobix coating thickness of 17µm was increased by 1.97-2.14 times and 1.96-2.46 times compared to the non-coated plate, respectively. In what follows, in addition to the critical thickness, the critical area of the coated surface is also obtained.
کلیدواژه‌های انگلیسی مقاله Dropwise condensation, Condensation heat transfer coefficient, heat flux, Hybrid hydrophobic, hydrophilic surface
نویسندگان مقاله H. Davar |
School of Mechanical Engineering, Iran University of Science and Technology, Tehran, 16846-13114, Iran

N. M. Nouri |
School of Mechanical Engineering, Iran University of Science and Technology, Tehran, 16846-13114, Iran

M. Navidbakhsh |
School of Mechanical Engineering, Iran University of Science and Technology, Tehran, 16846-13114, Iran

نشانی اینترنتی https://www.jafmonline.net/article_1143_816b997d48782cbc40758a7892d955d9.pdf
فایل مقاله فایلی برای مقاله ذخیره نشده است
کد مقاله (doi)
زبان مقاله منتشر شده en
موضوعات مقاله منتشر شده
نوع مقاله منتشر شده
برگشت به: صفحه اول پایگاه   |   نسخه مرتبط   |   نشریه مرتبط   |   فهرست نشریات