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All Journal CIVED (Journal of Civil Engineering and Vocational Education) Mechanical Engineering Education Journal Sainstek Eksakta : Berkala Ilmiah Bidang MIPA Jurnal Fokus Elektroda : Energi Listrik, Telekomunikasi, Komputer, Elektronika dan Kendali MOTIVECTION : Journal of Mechanical, Electrical and Industrial Engineering Teknomekanik Fokus Elektroda: Energi Listrik, Telekomunikasi, Komputer, Elektronika dan Kendali) Jurnal Vokasi Mekanika Fleksibel: Jurnal Pengabdian Kepada Masyarakat

Yolli Fernanda

Universitas Negeri Padang

Author-ID : 3761985

Agriculture, Biological Sciences & Forestry Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Mechanical Engineering Social Sciences Transportation

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Analysis of Tensile Strength the Fiber Bagasse Particles Board with Resin Adhesives Hendri - Nurdin; Yolli Fernanda; Meisuri Handayani
Teknomekanik Vol 1 No 1 (2018): Teknomekanik
Publisher : Universitas Negeri Padang

Development of the material be in the form of Particles it is possible to do so it can be an alternative to wood. Particle board is an engineered material that utilizes waste bagasse after sugar cane extraction process as an amplifier and as an adhesive used resin. Particle boards that have been produced, generally using wood powder, while the use of wood has been limited and diminished due to difficulty getting it. So the need for development in engineering the main material particle board in the form of wood powder and replace it with waste bagasse. The particle board manufacturing process is carried out by forging (compacting) between the mixture of sugarcane pulp particles and the BQTN 157 Resin adhesive. Percentage of mixed usage 50: 50 based on the fraction of weight and volume. In obtaining the mechanical properties carried out by tensile testing. From this research, the average particle pull strength is 1.81 MPa, strain 13,52% and elasticity 0,013 GPa. In obtaining particle board as an engineering material that has good ability influenced many things such as particle (mesh) raw material, adhesive use, mixed composition, the process of forging. From the characteristics of the test results obtained so that the particle board of the bagasse with resin adhesive is very possible to replace the type of particle board made from raw wood powder.

The Variation Effect of Electric Current Toward Tensile Strength on Low Carbon Steel Welding with Electrode E7018 Muhammad Agung Pratomo; Jasman Jasman; Nelvi Erizon; Yolli Fernanda
Teknomekanik Vol 3 No 1 (2020): Teknomekanik
Publisher : Universitas Negeri Padang

The strength of the welding result is strongly influenced by several factors, one of which is the selection of high current. This study aims to determine the effect of high current of welding on the strength of low carbon steel welding joints. The process of welding the material uses the open V seam connection type. The variations of the high current used were 80 A, 100 A and 130 A. The specimen used was a carbon steel plate with code of 1.0038 with thickness of 8 mm and the electrode used was the E7018 electrode with diameter of 3.2 mm. The strength of the welding results is influenced by arc voltage, amount of current, welding speed, amount of penetration and electric polarity. Determination of the amount of current in metal joints using arc welding affects the work efficiency and welding materials. Based on the research, it was found that welding using high current of 100 ampere produced the highest tensile strength value of all test specimens that were given welding treatment and good penetration results.

Performance Analysis of Water Heating System by Using Double Glazed Flat Plate Solar Water Heater Andika Putra; Arwizet K; Yolli Fernanda; Delima Yanti Sari
Teknomekanik Vol 4 No 1 (2021): Teknomekanik
Publisher : Universitas Negeri Padang

Nowadays, the use of solar energy is incredibly important to be increased since solar energy is renewable energy and also does not cause pollution. To harness solar energy, a solar collector device is needed to convert solar energy into heat energy. This study aimed to analyze the heat transfer in the flat plate solar collector which is used as a source of thermal energy in the water heating process for bathing. A double-glazed solar collector was used to absorb solar thermal energy and then transferred it to a water pipe. The pipe material used copper which has a very high conductivity value with an outer diameter of 15.7 mm. The plate collector used aluminium plates because they have high thermal conductivity. The dimensions of the collector frame were 150 cm long, 80 cm wide and 80 cm high. The collector frame was made of wood and covered with an insulator from coconut fibre with a thickness of 8 cm, with a tilt angle of 15˚. Based on the experimental process, the collector temperature was taken by using a thermocouple in order to heat the water which the inlet temperature in a bucket was 28˚C and the outlet water temperature during the experiment was 40˚C.

Co-Authors Adam Mandra Suwandi Akhmad Rais Ambiyar, Ambiyar Andika Putra Andre Kurniawan Andre Kurniawan Arafat, Andril Arwizet K Ashekul Islam Budi Syahri Delima Yanti Sari Desyandri Desyandri Dwi Sakti Putra DWI SURYANTO Elvira Zondra Firma Yulianis Fitri Amelia Fonny Maswija Priscilla Handrianto Handrianto Hendri Nurdin Irzal Irzal Jasman Joko Suprianto Kiwata, Takahiro La Ode Ahmad Barata Mega Oktaviani Meisuri Handayani Mochammad Haikal Muhammad Agung Pratomo Muhammad Akhbar Muhammad Riski Hidayat Muhammad Shiddiq Nelvi Erizon Nurdin Hendri Purwantono Purwantono purwantono purwantono Refdinal, Refdinal Ridhatul Arif Riky Satria Sherly Rahmayani Sri Rizki Putri Primandari Syahril Syahril Syaiful Salim Teki Haryono Usin Usin Willy Vernando Yufrizal Yufrizal Yusmaita, Eka Zainal Abadi

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