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PERANCANGAN NOSSEL DAN SISTEM PERPIPAAN PADA TURBIN PELTON Prihastuty, Endang; Fahmadi, Heru Dwi
ENGINEERING Vol 10, No 1 (2015)
Publisher : ENGINEERING

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (442.042 KB)

Turbin Pelton merupakan salah satu jenis turbin air yang cocok untuk daerah yang mempunyai tinggi jatuh (head) yang tinggi. Berdasarkan debit air dan head yang tinggi dari pompa yang ada, maka direncanakan sebuah rancang bangun turbin air jenis Pelton dalamskala laboratorium untuk pengujian. Dimana untuk memperoleh putaran dan daya yang maksimal, dilakukan perencanaan nossel dan system perpipaan.Berdasarkan potensi head yang berasal dari pompadidapatkan hasil perencanaan diameter jet dari nossel sebesar 12 mm. Turbin Pelton memakai system 2 nossel dari bahan paduan Aluminium Al 6061-T6 dan Brass 360 yang menghasilkan kecepatan relative terhadap mangkok sebesar 12,56 m/s. Peralatan pengujian turbin Pelton memakai system perpipaandari bahan Polyvinil chloride (PVC) berdiameter 25,4 mm dengan head loss total sebesar 7,4 m.Kata Kunci :Turbin Pelton, Head, Nossel, Pipa

PERANCANGAN NOSSEL DAN SISTEM PERPIPAAN PADA TURBIN PELTON Endang Prihastuty; Heru Dwi Fahmadi
Engineering : Jurnal Bidang Teknik Vol 6 No 1 (2015): April
Publisher : Universitas Pancasakti Tegal

Turbin Pelton merupakan salah satu jenis turbin air yang cocok untuk daerah yang mempunyai tinggi jatuh (head) yang tinggi. Berdasarkan debit air dan head yang tinggi dari pompa yang ada, maka direncanakan sebuah rancang bangun turbin air jenis Pelton dalamskala laboratorium untuk pengujian. Dimana untuk memperoleh putaran dan daya yang maksimal, dilakukan perencanaan nossel dan system perpipaan.Berdasarkan potensi head yang berasal dari pompadidapatkan hasil perencanaan diameter jet dari nossel sebesar 12 mm. Turbin Pelton memakai system 2 nossel dari bahan paduan Aluminium Al 6061-T6 dan Brass 360 yang menghasilkan kecepatan relative terhadap mangkok sebesar 12,56 m/s. Peralatan pengujian turbin Pelton memakai system perpipaandari bahan Polyvinil chloride (PVC) berdiameter 25,4 mm dengan head loss total sebesar 7,4 m.Kata Kunci :Turbin Pelton, Head, Nossel, Pipa

Perancangan Kincir Air Undershot Sebagai Penggerak Awal Pompa Endang Prihastuty; Hary Dwi Harsono
Mestro Vol 1 No 01 (2019): Edisi Juni
Publisher : Fakultas Teknik Universitas 17 Agustus 1945 Cirebon

Moving water holds enormous natural energy. The energy that water has can be used as a drive for waterwheels or water turbines. The use of waterwheels can be used as the initial driver of the pump. Where the pump will raise water from the river to the higher ground. In Cipager village, Cirebon district has a Cipager river that has a heavy flow. With such river conditions, the energy owned by the Cipager River can be used to move the waterwheel which is then used as the initial driver of the pump. Without using electricity, villagers can use pumps to raise water from the river to higher ground. So that water needs can be met both for irrigating rice fields or fulfilling daily needs. The use of waterwheel as the initial drive of the pump needs good design and adapted to the conditions of the river flow. Data on the Cipager river condition with a flow velocity of 2.027 m / s and flowrate of 1850 L / s. for the design criteria selected undershot waterwheel. It was obtained for the size of the pinwheel design, 80 cm diameter, 12 cm blade length, 10 cm blade width with flat blade shape, 2 mm thick steel plate material and 2 mm shaft material. The windmill rotation was obtained at 48.34 rpm, the wheel power was 197.882 watts and the wheel weight was 58.8 N. While the power of the wheel used to drive the pump was only 5.18% of the total power of the windmill produced

Design and Manufacturing of Organic Waste Chopping Machines Endang Prihastuty; Bobby Saputra; W. Djoko Yudisworo
Mestro Vol 3 No 02 (2021): Edisi Desember
Publisher : Fakultas Teknik Universitas 17 Agustus 1945 Cirebon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47685/mestro.v3i02.373

This research was conducted to find a solution to the problem of waste, especially organic waste which is generated from households and shopping centers, especially traditional markets. Many people do not understand how to deal with waste properly. The most common way that most people do is by burning organic waste. This has a negative impact on the environment and public health itself. Therefore it is necessary to do research on how this organic waste can be utilized for the benefit of society. One way to overcome the problem of organic waste is to make an organic waste chopper. The machine is equipped with a knife designed in such a way that it is capable of cutting to small sizes. In this study, this organic waste chopping machine will be used to produce pieces of waste which will then be used as biogas reactor material. To be continued in the process of making biogas. From the research results obtained the following machine specifications: Machine size with a length of 0.704 m, a width of 0.413 , and a height of 0.601 m. This organic waste shredder uses a motor with a power of 5.5 hp, a belt length of 798.47 mm, a drive pulley rotation of 2784.65 rpm and a blade rotation speed of 7.35 m/s.

Performance Testing of Centrifugal Pump Type with 3 Hp Power Wasiran Wasiran; Waluyo Djoko Yudisworo; Endang Prihastuty
Mestro Vol 4 No 02 (2022): Edisi Desember
Publisher : Fakultas Teknik Universitas 17 Agustus 1945 Cirebon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47685/mestro.v5i02.365

Pumps are fluid machines whose uses are very broad and important, ranging from industry to household needs. Selection of pump performance characteristics is very important and must be adjusted to the needs which include: discharge, head, power, and rotation. The performance characteristics of the pump are obtained through testing. In connection with the importance of information about pump performance characteristics, through this research activity efforts will be made to test centrifugal pumps using 3 hp of power. In this research, the data obtained from the direct test results will be entered, where the test is carried out at the Machine Performance Test Laboratory. In this test, the pump pressure data obtained from the gauge gradually with several valve openings, then the data is entered into the data table that has been prepared. The test was carried out to test the ability of the centrifugal pump test equipment using 3 HP power which was prepared as one of the laboratory pump test equipment for engine performance testing. In testing the centrifugal pump there are 3 variables that will be used to carry out the test, namely the first by using a tachometer which is useful for measuring shaft rotation, the second by using a Bordoun manometer which is useful for measuring fluid pressure, the third by using an orifice which functions to measure speed fluid.

Pembangunan Jaringan Distribusi Air Bersih bagi Masyarakat Desa Sonawan, Hery; Hermawan, M. Reza; Sofia, R. Evi; Rohadin, Rohadin; Prihastuty, Endang; Yudisworo, W. Djoko; Subiyanta, Erfan; Siswanto, Agus; Tohasan, Achmad; Wasiran, Wasiran; Heri, Junial
Berdikari: Jurnal Inovasi dan Penerapan Ipteks Vol 12, No 1: February 2024
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/berdikari.v12i1.20276

The community service activities in Kaduela Village, which were part of a matching fund program for the year 2023, were executed from July–December 2023 in accordance with the proposed activity plan. The objective of this initiative was to establish a comprehensive water pipeline infrastructure to provide clean water to the inhabitants of Bina Loka and Bina Bakti Hamlet, who lacked access to the numerous springs located in Kaduela Village. Proper and comprehensive piping planning was necessary to provide equitable distribution of water among community members in the two elevated hamlets relative to the water source. The process of addressing issues in Kaduela Village involved several sequential steps. These steps encompassed the collection of primary and secondary data, the depiction of the new piping network on a map of Kaduela Village, the simulation of the new piping network using Epanet software, the construction of the new piping network, and the subsequent commissioning of the system. The chosen pipe network configuration is a dead-end system, which was deemed appropriate for implementation in the Bina Loka and Bina Bakti hamlets, with the aim of providing water services to a total of 58 households in Bina Loka and 15 households in Bina Bakti. The process of pipeline network designing was conducted by Mechanical Engineering students from Universitas Pasundan and Universitas 17 Agustus 1945 Cirebon, under the supervision of their respective supervisors, utilizing the Epanet software. In addition to receiving funding under the 2023 matching fund program, this initiative also garnered comprehensive support from the BUMDES Arya Kamuning as the primary collaborator

Analysis Effect Blade Distance on the Performance of Microhydro Power Plants Prihastuty, Endang; Yudisworo, Waluyo Djoko; Tohasan, Achmad; Maldiesa, Maldiesa; Subiyanta, Erfan
Mestro: Jurnal Teknik Mesin dan Elektro Vol 6 No 01 (2024): Edisi Juni
Publisher : Fakultas Teknik Universitas 17 Agustus 1945 Cirebon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47685/mestro.v6i01.528

Microhydro power plants are small-scale power plants that use hydropower as their driving force. The hydropower used can be in the form of water flows such as irrigation canals, rivers or natural waterfalls. Microhydro power plants principally utilize the height and amount of water flow discharge per second on the water flow of irrigation canals, rivers or waterfalls. This flow of water rotates the turbine shaft so as to produce mechanical energy. One of the components in microhydro power plants is a turbine. The type of turbine used in low-head water flow is a screw turbine. This study discusses the effect of blade distance on the performance of microhydro power plants. The change in blade spacing given is 15 cm, 20 cm and 22 cm spacing with a 40-degree blade slope. From changes in blade spacing greatly affect the power and efficiency of the turbine. The highest power is generated by the use of 15 cm blades of 1267 watts. The efficiency of the turbine is also affected by the power generated by the turbine itself. The highest turbine efficiency is produced by the use of a blade distance of 15 cm of 37.25%, the closer the distance between the blades the greater the power and efficiency generated in the turbine itself.

Rear Wheel Drive Sprocket Gear Transmission Design for Electric car Tohasan, Achmad; Prihastuty, Endang; Yudisworo, W. Djoko
Mestro: Jurnal Teknik Mesin dan Elektro Vol 6 No 01 (2024): Edisi Juni
Publisher : Fakultas Teknik Universitas 17 Agustus 1945 Cirebon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47685/mestro.v6i01.539

Electric vehicle engines are the same as vehicles with combustion motors, namely they are an assembly of several mechanisms consisting of three main parts, namely the drive, the power transmission system and the driven part. The electric car used for this research is a conversion of a petrol car, where the drive uses a 3 KW BLDC electric motor. The BLDC motor shaft power is transmitted to the axle pinion shaft using a sprocket gear transmission. So an analysis of the sprocket gear design, both ratio, size (type), strength and age of the sprocket gear to be used needs to be carried out. The initial step is to calculate the design power by looking at the correction factors in the table for the type of electric motor drive, then determining the chain number on the graph by first calculating the torque moment. The linear speed of the chain that occurs is influenced by the size of the gears and the input rotation of the electric motor, the greater the speed, the smaller the torque, so the gear ratio needs to be considered in determining the maximum linear speed. After knowing the chain plan number, it can be tested by calculating whether the chain number technically meets good security or not. In this research, the sprocket chain design, namely chain roller number 40 with a maximum load of 33.74 kg, is good, namely greater than sf = 6.

Perancangan Mesin Mixer Bubur Vertikal Kapasitas 60 Liter Achmad Tohasan; Ayyash, Muhammad; Prihastuty, Endang
Teknobiz : Jurnal Ilmiah Program Studi Magister Teknik Mesin Vol. 14 No. 3 (2024): Teknobiz
Publisher : Magister Teknik Mesin Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/teknobiz.v14i3.7841

Proses pembuatan bubur melibatkan proses pengadukan guna mendapatkan hasil bubur yang bagus, yang memiliki tekstur yang kental tidak gosong dan tidak berkerak. proses pengadukan membutuhkan waktu dan tenaga. Menanggapi hal tersebut maka dapat direncanakan penciptaan teknologi tepat guna berupa mesin pengaduk bubur yang diharapkan dapat membantu dan mempermudah pada saat membuat bubur khususnya untuk umkm yang setiap harinya memproduksi bubur dengan kapasitas besar. Tahap metode penelitian ini antara lain mengidentifikasi masalah, studi literatur, perhitungan rancangan, desain rancangan, evaluasi rancangan. dan hasil dari perancangan pada ujung bilah pengaduk menggunakan silikon, motor yang dipakai ialah gear electromotor dengan daya 400 watt dan gearbox 1:25 dengan kecepatan putar 50 rpm yang dilengkapi dengan pengatur putaran, menggunakan 2 poros berlubang bebahan stainles steel 304, rasio pada transmisi sabuk puli menggunakan rasio 1:1 yang menggunakan 2 buah belt tipe A28 dengan prediksi umur belt hingga 771,3 jam.

Testing of the Condenser in the Distillation of Lemon Grass Essential Oil in Banjarnegara, Central Java Tohasan, Achmad; Prihastuty, Endang; Khilmi, Muhammad; Saleh, Abdurrahman
Mestro: Jurnal Teknik Mesin dan Elektro Vol 7 No 1 (2025): Edisi Juni
Publisher : Fakultas Teknik Universitas 17 Agustus 1945 Cirebon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47685/mestro.v7i1.664

Essential oil of lemongrass has a high economic value as a raw material for the perfume, cosmetics, and aromatherapy industries. The efficiency of the steam distillation process greatly depends on the performance of the condenser in converting the vapor of essential oil into a liquid phase. To determine the effectiveness value of the condenser in the essential oil distillation system that affects the yield of the produced oil, a condenser test was conducted in the essential oil distillation system located in Banjarnegara, Central Java. From the test results, this research aims to analyze the influence of the condenser design and operational parameters on the yield and quality of lemongrass essential oil. The effectiveness measurement of the condenser located in Kilang 1, Banjarnegara, Central Java, with a boiler capacity of 1 ton and a tube length of 36 meters, resulted in an effectiveness of 67%. In the distillation process with a capacity of 1 ton and a tube length of 36 meters, essential oil was obtained amounting to 7 kg, with a yield of 7%. Meanwhile, in measuring the effectiveness of the condenser located at the 2nd refinery in Banjarnegara, Central Java, with a kettle capacity of 1 ton and a tube length of 56 meters, an effectiveness of 78% was achieved. In the distillation process with a capacity of 1 ton and a tube length of 56 meters, essential oil amounting to 10 kg was also obtained, with a yield of 1%. Keywords: Condenser, Essential oil, Effectiveness value, and Yield.

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