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All Journal FLYWHEEL : Jurnal Teknik Mesin Untirta Machine : Jurnal Teknik Mesin Journal of Renewable Energy and Mechanics TEKNIKA Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa Dan Inovasi Jurnal Inovasi Teknologi Terapan
Erwin
Fakultas Teknik Universitas Sultan Ageng Tirtayasa
Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences Transportation

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Karakterisasi Performa Genset Diesel 5 kW menggunakan Syngas Sekam Padi dengan Variasi Pembebanan Restu Ferdinandsyah; Erwin Erwin; Slamet Wiyono
Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa Dan Inovasi Volume 4 Nomor 1 Tahun 2022
Publisher : Fakultas Teknik Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/asiimetrik.v4i1.2943

Abstract

With the decrease in world oil reserves, energy savings have begun to be launched in almost all countries of the world. Indonesia has now become one of the crude oil importing countries, so efforts are needed to reduce dependence on oil and gas fuels. The sustainability of biomass gasification technology, especially in Indonesia, is highly guaranteed because of the abundant availability of biomass in Indonesia. The purpose of this study is to determine the performance of a 5 kW diesel generator against variations in loading with diesel fuel. The second is to know the performance of a 5 kW diesel generator against variations in loading with diesel fuel and rice husk syngas. Data collection on the performance characterization of the 5 Kw diesel generator set from syngas rice husks against variations in loading was carried out at the New Renewable Energy Engineering Laboratory. The loading carried out in this study was using a 5200 Watt halogen lamp. The power used in this study is only up to a maximum of 3200 Watt. The test result shows that the power generated by the generator is greater when using diesel fuel compared to using a mixture of diesel fuel with syngas. The value of the generator power for each loading variable increased when using low electrical load and decreasing when using high electrical load.
Rancang Bangun Smoke Generator pada Kecepatan Angin Rendah dengan Wind Tunnel Rangkaian Terbuka Arief Mukhlisin; Erwin Erwin; Slamet Wiyono
Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa Dan Inovasi Volume 4 Nomor 1 Tahun 2022
Publisher : Fakultas Teknik Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/asiimetrik.v4i1.2944

Abstract

Flow Visualization is the process of making the physical flow of a fluid visible. The air fluid used is transparent, so the flow pattern must be shown by several special methods. There are three methods for visualizing flow: surface flow visualization, particle tracking method, and optical method. Turbulence is one of the most important subjects related to testing the test section in a wind tunnel, at different wind speeds turbulence levels and other flow quality parameters must be kept as close as possible to free flow conditions. The flow visualization test is carried out using a slow motion camera at speeds of 1 m/s, 2 m/s, 3 m/s, 4 m/s and 5m/s which will form a fluid flow in the form of lines of smoke coming out of the nozzle holes inside. Test section. From the research results, the authors can conclude that the flow obtained forms a laminar flow and good suction power from various wind speed variables.
Analisis Pengaruh Penambahan Passive Grid Terhadap Turbulensi pada Wind Tunnel Skala Kecil: Passive Grid Addition Effect on Turbulence Analysis in a Small-Scale Wind Tunnel Bima Heska Putra; Erwin; Slamet Wiyono
Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa Dan Inovasi Volume 5 Nomor 1 Tahun 2023
Publisher : Fakultas Teknik Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/asiimetrik.v5i1.4180

Abstract

One of the problems encountered by a laboratory with a small-scale wind tunnel facility is that the wind tunnel can only produce limited wind speed to simulate fluid behavior that passes through a tested object. This problem caused the laboratory to be unable to analyze fluid behavior that passed through a tested object. In that case, scale modeling to analyze fluid behavior at a certain speed without having to reach the actual speed is needed. The purpose of this research is to prove the passive grid addition effect on turbulence in a small-scale wind tunnel. The test is done by capturing smoke movement through the test section with and without a grid. Then analyze the collected data with SynthEyes software. The wind speed variation used in this research is between 0.5 and 6.0 m/s. The result of this research is that the smoke flow characteristic in a wind tunnel without a grid tends to be laminar flow, and the smoke flow in a wind tunnel with a grid tends to be turbulence flow. Smoke flow characteristics with a grid are still too far from smoke flow characteristics without a grid with the highest speed variation.
Design of Wind Speed Measurement System in Wind Tunnel Based on Pitot Tube Yudha Nurfauzi Nugraha; Erwin Erwin; Slamet Wiyono
Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa Dan Inovasi Volume 6 Nomor 1 Tahun 2024
Publisher : Fakultas Teknik Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/asiimetrik.v6i1.5476

Abstract

In the current era, the development of science in all aspects continues to change. The use of wind at this time is necessary for the efficiency of the energy used. The wind speed research method for this study utilizes experimental laboratory methods, specifically employing a Pitot tube measuring instrument to collect wind speed data. From the wind speed data obtained using a frequency of 25–50 Hz, there is only a slight difference between readings from a testometer with a pitot tube and only at frequencies of 39 Hz and 43 Hz, which have a visible difference. The graph indicates that the research was successful by comparing the readings on the testometer.
Apparent Source-Level Efficiency of Internal Electric and External LPG Heating in a Laboratory Vacuum Evaporator Erwin Erwin; Maulana Alfa Rizki; Syarif Abdullah; Slamet Wiyono
Jurnal Inovasi Teknologi Terapan Vol. 4 No. 2 (2026): Jurnal Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33504/jitt.v4i2.464

Abstract

Background: Vacuum evaporation lowers boiling temperature, but performance depends on heat-source power and location, vacuum level, auxiliary demand, and the analytical boundary. This study compared an internally coupled electric resistance heater with an external LPG burner in the same laboratory vacuum evaporator using one non-replicated Water Boiling Test per configuration and 40 kg of water. Temperature, gauge pressure, water mass, reservoir temperature, and electrical variables were recorded every minute. The electric run lasted 367 min at 0.548 kW average source power; the LPG run lasted 300 min, consumed 0.80 kg fuel, and averaged 2.049 kW. LPG reached 65 °C at 35 min and evaporated 7.8 kg (0.0260 kg/min), whereas the electric heater reached 55 °C near the end and evaporated 2.4 kg (0.00654 kg/min). Apparent source-level efficiencies from a common sensible-plus-latent balance were 78.2% for electricity and 62.7% for LPG. A ±1 °C sensitivity changed these estimates by about ±1.39 and ±0.45 percentage points, respectively. Including vacuum-pump electricity reversed the system-level ordering. Because power, pressure, duration, and endpoints were not matched, the results describe two operating states rather than a causal heater-location effect.
Co-Authors Ahmad Taufik Ainun Najib Akbar Ramandhan Ramandhan Arief Mukhlisin Bima Heska Putra Daman Huri Dedy Triawan Suprayogi Fendi Ferdiansyah Hendra Hengki Frisa Sukresno Iqbal Maulana Kurnia Nugraha Maulana Alfa Rizki Muhammad Irfan Ni Ketut Caturwati, Ni Ketut Ratih Diah Andayani Restu Ferdinandsyah Slamet Wiyono Slamet Wiyono Syarif Abdullah Wahyu Wahyu Herwanto Wildane Aryabathi Wisnu Kusuma Whardana Yudha Nurfauzi Nugraha