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Majalah Teknik Simes
Published by Universitas Prof. Dr. Hazairin, SH
ISSN : 19043348     EISSN : 2810028X     DOI : https://doi.org/10.32663/simes.v16i1 PUBLISHED: 20
Core Subject : Science, Social, Engineering,
Aerospace Engineering Automotive Engineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Transportation
Majalah Teknik Simes merupakan jurnal ilmiah untuk penelitian di bidang teknik mesin dan teknik sipil yang diterbitkan oleh Fakultas Teknik, Prof. Dr. Hazairin, SH (UNIHAZ) Bengkulu. Indonesia. Majalah Teknik Simes terbit enam bulanan.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 100 Documents
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Uji Tarik Dan Struktur Mikro Karbon Rendah Dipanaskan Dengan Suhu 600?C Tempering Dengan Air Aki Dan Udara Mas Intani Sigit Nurwono; Ahmadin Ahmadin; Lelawati Lelawati
MAJALAH TEKNIK SIMES Vol 16 No 2 (2022): Vol 16 No 2 (2022): Majalah Teknik Simes Volume 16 Nomor 2 Juli 2022
Publisher : UNIVERSITAS PROF. DR. HAZAIRIN, SH BENGKULU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32663/simes.v16i2.3057

Abstract

The results of the tensile test on a low carbon steel plate ST 37 with a temperature of 600°C for 30 minutes then Tempering with battery water, the average non-treated tensile strain results in the yield strain uy = 16.68 Kgf /mm2 ultimate strain ou = 27.54 Kgf /mm2 breaking strain uf = 22.57 Kgf /mm2. The average result of tensile strain in tempering with air is obtained yield strain uy = 20.42 Kgf/mm2 ultimate strain ou = 26.02 Kgf / mm2 breaking strain uf = 22.19 Kgf / mm2. Result rat.a the average dance strain in tempering using battery water obtained true strain uy = 10.92 Kg /mm2 ultimate strain ou = 19.48 Kg/mm2 breaking strain uf = 21.73 Kgf /mm2 .Worst battery water as a medium refrigerant that can reduce tensile strength compared to air cooling. The results of the photo of the microstructure of the ST 37 low carbon steel plate which were heat treated at 600oC were obtained with the microstructure results with the grain size, namely Non Treatment 12.85 µm, air 15.88 m, and Battery Water 11.53 µm. the highest is with air grain size of 15.88 µm and the lowest is water battery 11.53 µm which experienced a large decrease compared to non-treatment of 12.85 µm
Uji Tarik Dan Struktur Mikro Karbon Rendah Dipanaskan Dengan Suhu 600?C Tempering Dengan Air Aki Dan Udara Mas Intani Sigit Nurwono; Ahmadin Ahmadin; Lelawati Lelawati
MAJALAH TEKNIK SIMES Vol 16 No 2 (2022): Vol 16 No 2 (2022): Majalah Teknik Simes Volume 16 Nomor 2 Juli 2022
Publisher : UNIVERSITAS PROF. DR. HAZAIRIN, SH BENGKULU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32663/simes.v16i2.3056

Abstract

The results of the tensile test on a low carbon steel plate ST 37 with a temperature of 600°C for 30 minutes then Tempering with battery water, the average non-treated tensile strain results in the yield strain uy = 16.68 Kgf /mm2 ultimate strain ou = 27.54 Kgf /mm2 breaking strain uf = 22.57 Kgf /mm2. The average result of tensile strain in tempering with air is obtained yield strain uy = 20.42 Kgf/mm2 ultimate strain ou = 26.02 Kgf / mm2 breaking strain uf = 22.19 Kgf / mm2. Result rat.a the average dance strain in tempering using battery water obtained true strain uy = 10.92 Kg /mm2 ultimate strain ou = 19.48 Kg/mm2 breaking strain uf = 21.73 Kgf /mm2 .Worst battery water as a medium refrigerant that can reduce tensile strength compared to air cooling. The results of the photo of the microstructure of the ST 37 low carbon steel plate which were heat treated at 600oC were obtained with the microstructure results with the grain size, namely Non Treatment 12.85 µm, air 15.88 m, and Battery Water 11.53 µm. the highest is with air grain size of 15.88 µm and the lowest is water battery 11.53 µm which experienced a large decrease compared to non-treatment of 12.85 µm
Uji Tarik Dan Struktur Mikro Karbon Rendah Dipanaskan Dengan Suhu 600?C Tempering Dengan Air Aki Dan Udara Mas Intani Sigit Nurwono; Ahmadin Ahmadin; Lelawati Lelawati
MAJALAH TEKNIK SIMES Vol 16 No 2 (2022): Vol 16 No 2 (2022): Majalah Teknik Simes Volume 16 Nomor 2 Juli 2022
Publisher : UNIVERSITAS PROF. DR. HAZAIRIN, SH BENGKULU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32663/simes.v16i2.3054

Abstract

The results of the tensile test on a low carbon steel plate ST 37 with a temperature of 600°C for 30 minutes then Tempering with battery water, the average non-treated tensile strain results in the yield strain uy = 16.68 Kgf /mm2 ultimate strain ou = 27.54 Kgf /mm2 breaking strain uf = 22.57 Kgf /mm2. The average result of tensile strain in tempering with air is obtained yield strain uy = 20.42 Kgf/mm2 ultimate strain ou = 26.02 Kgf / mm2 breaking strain uf = 22.19 Kgf / mm2. Result rat.a the average dance strain in tempering using battery water obtained true strain uy = 10.92 Kg /mm2 ultimate strain ou = 19.48 Kg/mm2 breaking strain uf = 21.73 Kgf /mm2 .Worst battery water as a medium refrigerant that can reduce tensile strength compared to air cooling. The results of the photo of the microstructure of the ST 37 low carbon steel plate which were heat treated at 600oC were obtained with the microstructure results with the grain size, namely Non Treatment 12.85 µm, air 15.88 m, and Battery Water 11.53 µm. the highest is with air grain size of 15.88 µm and the lowest is water battery 11.53 µm which experienced a large decrease compared to non-treatment of 12.85 µm
Rancang Bangun Mesin Parutan Kelapa Skala Rumah Tangga Dengan Kapasitas 10 kg/jam Roki Alianda; Muhammad Halil; Een Tonadi
MAJALAH TEKNIK SIMES Vol 16 No 2 (2022): Vol 16 No 2 (2022): Majalah Teknik Simes Volume 16 Nomor 2 Juli 2022
Publisher : UNIVERSITAS PROF. DR. HAZAIRIN, SH BENGKULU

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This study aims to design, manufacture and test a coconut grated machine with a capacity of 10 kg/hour. The research method used in this research is an empirical method, namely field observations (observations) then from literature sources and then applied in one dimensional modeling with planning that is realized in one real form in the form of designing a coconut grating machine. This design is a coconut grater machine using 750 watts of electricity with pulley and belt transmission elements, with a grater system using a grater knife using a screw system. The results of the grater work obtained an average grater process of 36.72 Kg/hour. The advantages and disadvantages of designing the grated coconut machine that has been produced are very low noise levels and negligible vibration, because this machine is equipped with a pulley as a successor to the power of the electric motor. The increase in motor temperature for 2 hours to 4 hours of operation, there is no increase in motor temperature. The rotation of the grated head is quite good, it's just that the grated coconut with the shell is not clean, so the grating operation must be adjusted to the size of the coconut. The machine is easy to carry and safe to use.
Studi Karang Mati Sebagai Pengganti Agregat Kasar Pada Adukan Beton Hendy Ramadana Putra; Tri Sefrus
MAJALAH TEKNIK SIMES Vol 16 No 2 (2022): Vol 16 No 2 (2022): Majalah Teknik Simes Volume 16 Nomor 2 Juli 2022
Publisher : UNIVERSITAS PROF. DR. HAZAIRIN, SH BENGKULU

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

In this area Kaur is an area located in the southern coastel area of Bengkulu Province,The main problem of this research is that there are many dead corals that are not utilized by the surrounding population. The purpose of this research is the number of dead corals, so that they only become coastel waste. The method used is a laboratory test that is guided by SNI 03-1969-1990. Based on the results of the compressive strength of concrete it is known that the coarse agregate of dead coral used is a mixture of 60%. The study used the composition of 1 cement, 1.6 sand, 2.5 coral in the composition of concrete. The results show that the concrete is 60% more improved than the other concretes.
Uji Coba Peyulingan Serai Wangi Dengan Variasi Tekanan Ketel Menggunakan Metode Distilasi Uap Air Aang Kunaidi; Muhammad Halil; Antonius FA Silaen
MAJALAH TEKNIK SIMES Vol 17 No 2 (2023): Majalah Teknik SIMES Vol. 17 . No. 2, Juli 2023
Publisher : UNIVERSITAS PROF. DR. HAZAIRIN, SH BENGKULU

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Lemongrass is an herbal plant known for its refreshing taste and aroma. Citronella is one of the prospective volatile commodities and is rich in benefits. The content contained in this plant can be used in the perfume, food, cosmetic, medicine and aromatherapy industries. This study aims to make a tool and perform essential oil distillation by steam distillation method using citronella plant raw materials, and to determine the effect of variations in boiler pressure on the yield and specific gravity of essential oil of citronella plant. This research was conducted in June-July 2022, data collection starts from the design, tool manufacturing process, refining process, pressure testing and data processing. Analysis of the data in this study is presented qualitatively and quantitatively which is equipped with data tables and diagrams/pictures of the results of the research that has been carried out. Essential oil distillers can be made with a raw material capacity of 1 kg of citronella plant, 3 liters of water, and 90 minutes of distillation time using LPG gas as fuel. After testing using 3 pressure variations, namely 0.5 bar, 1 bar and 1.5 bar, the best quality essential oil is at a pressure of 1.5 bar with a % yield of 1.024% and a specific gravity of 0.886 gr/ml.
Teknik Pembakaran Bata Dengan Briket Batu Bara Campuran Muhammad Halil; Ahmadin Ahmadin; Lelawati Lelawati
MAJALAH TEKNIK SIMES Vol 17 No 2 (2023): Majalah Teknik SIMES Vol. 17 . No. 2, Juli 2023
Publisher : UNIVERSITAS PROF. DR. HAZAIRIN, SH BENGKULU

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Abstract

There are many small brick-burning industries in rural areas, and especially near big cities and are industrial centers of bricks burning wood or husks. The price of this fuel continues to increase because the supply of firewood is dwindling and in the use of husks there is competition from other consumers, namely chicken farmers. Coal fuel has a good opportunity to be used in the brick industry, especially in Bengkulu. The coal combustion technique that has been introduced is a combination of coal – 50% wood. In this research, the combustion technique with coal and "biocoal" is developed, namely briquettes and a mixture of coal and sawdust. For this reason, a prototype furnace has been made, namely a traditional stove with a modified combustion chamber with a capacity of 4500 bricks. Using brick raw materials from Bengkulu, whose main minerals are coaline cristobalite and albite, burning with coal and “biocoal” briquettes has been successfully carried out. which is better achieved energy efficiency of 70% as a cheaper alternative, it has been tried burning with a mixture of coal and wood chips with a ratio of 7: 3 produces an energy efficiency of about 58% with the same raw brick material burning efficiency with a combination of coal-wood in Traditional stoves average 36% with a ratio of coal and wood of 1:8.
Belt Conveyor Otomatis Sebagai Penyortir Kualitas Jagung Manis Berbasis Nodemcu Esp8266 Ansyah Dani Fernando; Meriani Meriani; Mekar Ria Pangaribuan
MAJALAH TEKNIK SIMES Vol 17 No 2 (2023): Majalah Teknik SIMES Vol. 17 . No. 2, Juli 2023
Publisher : UNIVERSITAS PROF. DR. HAZAIRIN, SH BENGKULU

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Conveyor belts that are controlled by a controller and programmed by a PC, are widely used in industry, ranging from quality control, sorting, security, carrying objects and many others. This conveyor belt uses a load sensor and a TCS3200 tcs load sensor. The process of getting quality corn with the two sensors will make it easier to sort the sorter
Pengaruh Limbah Tutup Botol Air Mineral Pada Lapis Perkerasan Base A Sigit Harianto; Sazuatmo Sazuatmo; Elly Tripujiastutie
MAJALAH TEKNIK SIMES Vol 17 No 2 (2023): Majalah Teknik SIMES Vol. 17 . No. 2, Juli 2023
Publisher : UNIVERSITAS PROF. DR. HAZAIRIN, SH BENGKULU

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Abstract

One of the wastes that can be used as additives in base A is mineral water bottle caps. This waste can be expected to reduce the use of natural materials and reduce the amount of plastic waste. This study aims to determine the CBR value after adding mineral water bottle cap" waste as much as 6%, 8%, 10%, 12%, and 14%. The method used is a laboratory CBR test method using a CBR penetration tool to obtain the results of the experiment. The results of this "study indicate that base A aggregate added with 6% of mineral water bottle cap waste produces a CBR value of 96.85%, the addition of 8% produces a CBR value of 98.88%. The addition of 10% produces a CBR value of 99.68%, the addition of 12% produces a CBR value of 98.29% and the" addition of 14% produces a CBR value of 97.09%. These results indicate that the addition of plastic bottle cap waste as a filler in base A can be used because the CBR value is greater than "90% and with the composition that has been determined in this study.
Analisis Regresi Nilai Kekuatan Mekanik Biomaterial Cangkang Kerang Darah  Dan Resin Akrilik Bahan Gigi Tiruan Afrizal; Eko Martono; Donny Setiawan
MAJALAH TEKNIK SIMES Vol 18 No 1 (2024): Majalah Teknik SIMES, Vol. 18 No. 1, Januari 2024
Publisher : UNIVERSITAS PROF. DR. HAZAIRIN, SH BENGKULU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32663/6qqreg47

Abstract

Extruded biomaterials made from clamshell have the potential to reduce the reliance on imported materials to make dentures, however, clamshell biomaterials and Acrylic Resin have no known effect as denture mix materials, so their effect as a denture mix material needs to be studied. using regression analysis. Multiple Linear Regression where a dependent variable (Variable Y) is associated with two or more independent variables (Variable X). Variables. Variables Variables Variables The effects of testing the compressive strength and flexural strength of blood clam skin biomaterial with acrylic resin alloy have no significant or dominant influence on either blood clam skin biomaterial powder or acrylic resin but both have an influence as replacement materials for denture composites. whose basic material is expensive acrylic resin. price.

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