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Potensi Pemanfaatan Sumber Tenaga Energi Baru Terbarukan Di Desa Sukamandi Kabupaten Subang Budi Harja, Herman; Ariyani, Emma Dwi; Muldani Hendrawan, Yogi; Riduansyah, Rayadi
Manutech : Jurnal Teknologi Manufaktur Vol. 15 No. 02 (2023): Manutech: Jurnal Teknologi Manufaktur
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33504/manutech.v15i02.289

Abstract

The availability of electrical energy significantly affects the survival of human life. Sources of electrical energy can be obtained from non-renewable energy sources, including oil and coal, besides that electrical energy can also be obtained from renewable energy sources, including the potential energy of water, air, and light. This paper describes a study on the utilization of renewable energy potential in Sukamandi Village, Sagalaherang District, Subang Regency. This study was conducted through several focus activities, namely observation and measurement, especially on the potential energy of water, wind and solar energy available in Sukamandi Village. The results of the study of observations and measurements show that the potential for water energy in the Curug Cibingbin waterfall is 334 Watt, the potential for wind energy in Bukit Jamali is 129 Watt, and the potential for solar energy in Bukit Jamali is 9,4503 Watt for potential solar energy. Therefore, a more comprehensive study that can be directly applied is the design of making energy conversion devices from the three energy potentials that have been studied
PERANCANGAN SISTEM KONSTRUKSI MEKANIK 3D PRINTER GEOPOLYMER TYPE CARTESIAN Setiawan, Heri; Nopriyanti, Rani; Adi Soetopo, Antonius; Rusmana, Nandang; Gunawan, Iwan; Pandoe; Budi Harja, Herman; Rahmat Hadi, Faisal
Jurnal Rekayasa Mesin Vol. 15 No. 2 (2024)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v15i2.1543

Abstract

The population growth in Indonesia continues to increase every year, which causes a higher level of demand for civil buildings and houses. 3D concrete printing is an innovative construction method that has recently begun to be applied to the construction industry and has proven to be profitable in terms of optimizing construction time, cost, design flexibility and error reduction as well as being environmentally friendly. The geopolymer 3D printer is a 3D concrete printing machine specifically for extruding geopolymer mortar materials. This study aims to design a mechanical construction system for a 3D printer geopolymer machine. Geopolymer mortar has a unique strength compared to cement mortar and dries faster so it has better molding properties. The design of the cartesian type geopolymer 3D printer machine uses the VDI 2222 design method which consists of planning, conceptualizing, designing, and finishing. Based on this design method, a printing area of 5m x 5m x 3m is designed with a maximum printing speed of 100 mm/s. The results of this design meet the demands and are stated to be technically good in static calculations.
Pembuatan Horizontal Spindle Test bar pada Mesin Frais Aciera F3 Febriani, Risky Ayu; Saksono, Novi; Budi Harja, Herman; Wijaya, Rian
JTRM (Jurnal Teknologi dan Rekayasa Manufaktur) Vol 6 No 1 (2024): Volume: 6 | Nomor: 1 | April 2024
Publisher : Pusat Penelitian, Pengembangan, dan Pemberdayaan Masyarakat (P4M) Politeknik Manufaktur Bandung (Polman Bandung)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.48182/jtrm.v6i1.172

Abstract

A test bar is a tool that represents an axis whose position will be tested relative to other machine elements as well as the movement of the axis relative to its own position. With a test bar as a precision tool, the deviation value of a machine's geometry can be determined. In the initial stages of making the spindle test bar, namely determining the design according to ISO 230-1:1996 standards, machine testing tools books and directly observing the Aciera F3 Milling Machine. The stages of making a test bar spindle consist of several machining processes such as the lathe process, heat treatment and grinding process, quality checking, and testing. The results of the quality check showed that there were 4 actual dimensions within the tolerance limits and 3 other actual dimensions had sizes outside the tolerance limits, but sizes outside these limits had no effect on the function of the workpiece being made, so this calibration tool could still be used. For testing the spindle test bar on the Aciera F3 Milling Machine object, there were deviations in eccentricity and parallelism with the transverse direction table of 0.030 mm and 0.011 mm, respectively.