Analisa Metal Foam (Coating dan Tanpa Coating) sebagai Wick Structure pada Heat Pipe Silinder
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Date
2022Author
Ginting, Fitri Harwina Suci
Advisor(s)
Humaidi, Syahrul
Tetuko, Anggito P
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In this paper, the commercial metal foams were analyzed and characterized to be used
as the wick structure in a cylindrical heat pipe, where ferrofluid was used as the
working liquid. The surface modifications of the metal foams were prepared using
acetone cleaning and superhydrophobic coating methods. The metal foams were
characterized using several measurements: XRD, 3D optical microscope, density,
porosity, SEM-EDX, FTIR, contact angle, and capillary. The cylindrical heat pipe was
tested at two heat input variations of 3 and 5 W in a horizontal direction. The metal
foam characterizations revealed that the acetone cleaned metal foam is more suitable
to be used as the wick structure in a cylindrical heat pipe. The acetone cleaned metal
foam has a hydrophilic characteristic that could enhance the capillary movement and
liquid circulation in the heat pipe. The heat pipe ’s performances test proposed that
the the optimum thermal resistance is obtained at heat input of 5W (2.47 oC/W). Dalam tulisan ini, metal foam komersial dianalisis dan dikarakterisasi untuk digunakan
sebagai wick structure dalam heat pipe silinder, dimana ferrofluid digunakan sebagai
cairan kerja. Modifikasi permukaan metal foam diberi perlakuan menggunakan
pembersihan aseton dan metode pelapisan superhidrofobik.Metal foam dikarakterisasi
menggunakan beberapa pengukuran: XRD, mikroskop optik 3D, densitas, porositas,
SEM-EDX, FTIR, sudut kontak, dan kapilaritas. Heat pipe silinder diuji pada dua
variasi kalor input 3 dan 5 W arah horizontal. Karakterisasi metal foam menunjukkan
bahwa metal foam yang dibersihkan aseton lebih cocok untuk digunakan sebagai wick
structure dalam heat pipe silinder. Metal foam yang dibersihkan aseton memiliki
karakteristik hidrofilik yang dapat meningkatkan pergerakan kapiler dan sirkulasi
fluida dalam heat pipe. Uji kinerja heat pipe mengusulkan bahwa resistansi termal
optimum diperoleh pada kalor input 5W (2,47oC/W).
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