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All Journal Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Jurnal Teknik Mesin Indonesia
Asral Asral
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Aerospace Engineering Automotive Engineering Control & Systems Engineering Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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Perancangan Dan Pengujian Pompa Sebagai Turbin Untuk Pembangkit Listrik Tenaga Air Fadjrin Cahyani Sangadji La Ada; Asral Asral
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

A pump as a turbine is a pump that is converted from a motor-driven pump to bring water, becomes driven by falling water and then turns the impeller and transformed it into a mechanical energy. Basically the Working Principle of the Pump as a Turbine is a pump that is in a state of being sedated by water at a certain height. The water will rotate the impeller, then the impeller is then passed to a generator that converts it to mechanical energy. Testing and designing the pump as a turbine aims to analyze the method of manufacture and processes for pumps designed by students. In Riau Province itself no one has used a pump as a replacement for turbines to generate electricity. Pump design as a turbine consists of searching the value of the initial variable, calculation and design. From testing the pump as a turbine that has been designed, the data shows that the largest potential hydro power is 3169 watts and potential pump power is 5003 watts. From the potential power that has been obtained it is known that the design of the pump as a turbine is feasible to use as a power plant.Keywords : Pump, Turbine, Picohydro,
Kaji Eksperimental Cyclone Separator Pada System Pneumatic Conveying Dengan Variasi Partikel Padat Martinus Rudy Irwanto Sihotang; Asral Asral
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Cyclone Separator is a device that uses the principle of centrifugal force and low pressure due to turnaround to separate material based on different types and sizes. The phenomenon of arising in the cyclone separator installed in suction or press: collection efficiency decline marked by the large number of dust particles is wasted/fluttering giving rise to pollution of the surrounding area of the factory, the pressure drop It may cause loss of energy. This problem can affect the results and costs of production. This research aims to know the characteristics of the incoming velocity and mass flow rate of dust particles towards efficiency and a decrease in the pressure of the cyclone suction and press. By selecting the test type cyclone dust types vary the swift, the inflow velocity and mass flow rate of the cyclone dust. Testing takes place at room temperature. The test results provide that increased pressure drop in the inflow velocity and mass flow rate of the dust increases. Cyclone efficiency is increased when the density (mass flow rate of the increase in dust) and high flow cyclone mounted on suction position. On the contrary position press the efficiency decreases at a speed the flow of incoming cyclones enlarged. So the cyclone separator mounted suction more profitable than farmed ingredients press.KeyWords: Cyclone Separator, Particulate Matter, Efficiency Cyclone
Kaji Eksperimental Turbin Air Tipe Undershot Untuk Pembangkit Listrik Tenaga Air Dipasang Secara Seri Pada Saluran Irigasi Riko Fernando; Asral Asral
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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The irrigation canal available throughout the Tarmland in Province of Riau. The irrigation system can be utilized as hydropower generation even if the possibility can only move a small-scale water turbine, but when made in large quantities would produce large amounts of energy. In this study tested the water turbine type undershot with installation of turbines in series on the flow of irrigation and compare them with the installation of turbine singly. From the testing that has been done the efficiency of turbines produced at the time of testing in series lower than in a single test, this is because at the time of testing the water flowing series obstructed by the second turbine, thus making the water flow is not smooth. The highest power generated main turbine installed in series is 153.66 Watt on water flow of 0.308 m3/ s, the highest power generated while the main turbine installed singly is 196.25 Watt on water flow of 0.308 m3/s.Keywords: Irrigation canal, Undershot Water Turbine, series Tested.
Analisis Pengaruh Perbedaan Rasio Pitch Terhadap Efisiensi Pada Turbin Archimedes Fakhrul Rozi; Asral Asral
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 7 (2020): Edisi 2 Juli s/d Desember 2020
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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The Archimedes turbine being studied is a type of water turbine for small-scale power plants where the screw water turbine is suitable for rivers in the Indonesian region because the turbine operation only requires a low turbine head, low price, and easy to apply. With the potential for the flow of Koboko waterfall, which is located in Kampar Regency, Riau Province, it is possible to install this screw-type water turbine. In the process of designing the thread of the Archimedes turbine, it is influenced by external parameters (outside turbine radius, turbine length, turbine slope, water flow rate, head) and internal parameters (radius in a turbine, ratio pitch, and the number of blades). The external parameters are determined by the location of the turbine placement while the internal parameters can be determined independently to get the maximum performance from the turbine. In this study, the parameters to be analyzed are internal parameters, namely the ratio pitch. There are two variations in the design of ratio the pitch (Pr) are: 1.5 Ro and 1.2 Ro. Tests are carried out to calculate how much efficiency the Archimedes turbine produces for each ratio pitch and compare each result. The result of this research is that the efficiency of the Archimedes turbine with a ratio of pitch 1.2 Ro is higher than that of a ratio of pitch 1.5 Ro with an efficiency value of 36.3668 %. This efficiency value is obtained at a water flow rate of 0.00009 m3/ s and a turbine tilt angle of 40˚. Keywords : Turbine screw, ratio pitch, head, discharge, angle of placement.
Analisis Aktual Efisiensi Turbin Gas Type MS5001PA Herman Iswanto; Asral Asral
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 7 (2020): Edisi 2 Juli s/d Desember 2020
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Minas Gas Turbine (MGT) is one of the main assets owned by the Department of Power Generation and Transmission (PG&T) operated by Chevron Indonesia Company (CPI). PG&T hasthe duty to guarantee the distribution of electricity to all assets and offices operated by Chevron Indonesia Company (CPI). Minas Gas Turbine has a Power Output of 200 - 400 MW. MGT has 11turbines that are driven by gas fuel which are processed through the Gas Power Cycle. Gas which isused as fuel is distributed by PT. Conoco Philips in Grisik located in Jambi and gas from a well owned by CPI. PLTG is a generator that has a fast response to changes in load. Therefore, changes inthe burden on PLTG often occur. To maintain the performance of the PLTG, the existing equipment in the PLTG must be maintained so that it can work optimally. In this Final Project an actual analysis ofthe efficiency of the gas turbine will be carried out on the operation load of the Gas Turbine unit # 6 type MS5001PA, by analyzing the efficiency produced by a natural gas-fired gas turbine. From theresults of this study it was found that the thermal efficiency of the Turbine Gas Turbine unit # 6 typeMS5001PA in the Minas Gas Turbine area at a load of 20 MW is 19.06%Keyword: Gas Turbine, Thermal efficiency, compressor, turbine
Analisis Aerodinamis Pada Mobil Hemat Energi Asykar Proto Unri Tipe Prototype Dengan Menggunakan CFD (Computational Fluid Dynamics) Toni Hendrike; Asral Asral
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Aerodynamic has a major influence on vehicles moving at a certain speed. Aerodynamics is influenced by the form factor and air flow that comes in contact directly on the surface of the vehicle, causing obstacles and flow separations that occur in the rear of the vehicle that affect the stability of the vehicle. Obstacles that occur significantly affect vehicle fuel consumption. Thus the purpose of this final project is to simulate coefficient drag and coefficient lift that happened to the Asykar Proto UNRI car using CFD (Computational Fluid Dynamics). Analysis is done to find out the size coefficient drag and coefficient lift and the flow form that works on the Asykar Proto UNRI car with a maximum speed of 80 Km/h. The body shape of the car is designed using software Inventor 2017 then exported to ANSYS 16.0 to do summulation. The research results obtained are magnitude coefficient drag and coefficient lift which works on Asykar Proto UNRI cars which are 1.5 and 0.032. Refers to the result obtained by the experiment changing the shape of the front and windshield the value is large of coefficient drag and coefficient lift decreased to 0.15 and 0.0030. This is because the body on the front and the windshield of the part is the body part of the car that determines the amount of drag. Whereas value coefficient lift on the car Asykar Proto UNRI itself does not affect the stability of the car (lift force) when it runs at a speed of 80Km/h.Keywords: aerodynamics, coefficient drag, coefficient lift, Iventor 2017, ANSYS 16.0.
Co-Authors ARI SETIAWAN D.Erianto Simanjuntak Fadjrin Cahyani Sangadji La Ada Fakhrul Rozi Feblil Huda Herman Iswanto Martinus Rudy Irwanto Sihotang Marwanto Marwanto Musthafa Akbar Neylan Nurina Rahmad Fauzi Riko Fernando Sakal Hanov Dulvin Sinaga Seprian Adis Sugiman Sugiman Syafri Syafri T Harismandri Toni Hendrike Zikri Zikri