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All Journal Buletin Udayana Mengabdi Jurnal Energi Dan Manufaktur Dinamika Teknik Mesin International Journal of Engineering and Emerging Technology
I Made Astika
Jurusan Teknik Mesin Universitas Udayana, Kampus Bukit Jimbaran Bali
Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics

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Journal : International Journal of Engineering and Emerging Technology

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Thermal Conductivity and Bending Strength of Coconut Fiber/Paraffin/Graphite Composite Phase Change Materials I Made Astika; I Nyoman Suprapta Winaya; I Dewa Gede Ary Subagia; I Ketut Gede Wirawan
International Journal of Engineering and Emerging Technology Vol 5 No 2 (2020): July - December
Publisher : Doctorate Program of Engineering Science, Faculty of Engineering, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/IJEET.2020.v05.i02.p20

Abstract

The use of composite materials for panel boards, building construction, vehicle accessories, and household furniture is growing. Coconut coir fiber-reinforced composites can be applied as panel boards for building and furniture construction, which can also be used as heat storage systems. The coco fiber composite's low energy storage capacity can be increased by incorporating PCM material into it, forming a PCM composite material. Heat absorption and release performance depend on the material's thermal conductivity, which can be increased by adding additives such as graphite. This paper presents a performance test of PCM composites to obtain bending strength and thermal conductivity. The research materials were coconut coir fiber, polyester, paraffin, and graphite. The weight fractions of coco fiber and polyester were 30 and 50%, respectively. Variation of paraffin weight fraction 15 and 20% and variation of graphite weight 0 and 5%. The method of mixing materials is direct incorporation and forming of PCM composites using a press molding process. The tests carried out include the bending test (ASTM D790-03) and the thermal conductivity test using the Heat Transfer Experiment Base Unit test kit. The results show that the use of 15 wt% paraffin with 5 wt% graphite increases thermal conductivity by 23.27% and increases bending strength by 36.71%.
Co-Authors Cok Istri Putri K Dewa Ngakan Ketut Putra Negara Gede Adi Yoga Saputra Hanung Adi Nugroho I .G. P. Agus Suryawan I Dewa Gede Ary Subagia I Gusti Ketut Sukadana I Gusti Komang Dwijana I Ketut Suarsana I Nyoman Suprapta Winaya I Wayan Purna Wirama I.K.G. Wirawan Made Suarda Putu Lokantara