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All Journal Rotasi FLYWHEEL : Jurnal Teknik Mesin Untirta Teknika: Jurnal Sains dan Teknologi VANOS Journal of Mechanical Engineering Education R.E.M (Rekyasa Energi Manufaktur) Jurnal Jurnal Teknika Machine : Jurnal Teknik Mesin Journal of Renewable Energy and Mechanics Eksergi: Jurnal Teknik Energi Al-Ijtima: Jurnal Pengabdian Kepada Masyarakat Journal of Community Service in Science and Engineering Trends in Mechanical Engineering Research Jurnal Polimesin Scientific Contribution Oil and Gas Al-Ijtimā: Jurnal Pengabdian Kepada Masyarakat
Ni Ketut Caturwati, Ni Ketut
Universitas Sultan Ageng Tirtayasa
Religion Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences Transportation Other

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Fan Blade Balancing Process on CFM56-5B Engine Airbus A320 using the Trim Balance Method Nugroho, Dimas Augie; Caturwati, Ni Ketut
FLYWHEEL : Jurnal Teknik Mesin Untirta Volume 9, Issue 1, April 2023
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/fwl.v0i0.26503

Abstract

Fan unbalance is a condition of imbalance of the fan blades with respect to the axis of play and voltage. This imbalance results in the shaft bearing receiving additional centrifugal force due to unbalanced load. This condition causes excessive vibration that produces noise. Trim Balance is a method to reduce vibration by installing balancing screws of different weights on the fan blades to achieve balanced rotation. Fan trim balance can be performed on vibration sources from FAN /LPC or from LPT as they are located in one axle, thus influencing each other. The unit of vibration measurement used is Mils which shows the maximum deviation shift distance (Displacement), with a value of 1 mils = 0.001 inch, or in microns with a value of 1 μm = 1x10-6 m. According to the Aircraft Maintenance Manual (AMM) instructions, the recommended maximum vibration limit is 2 mils, for some airlines the vibration limit is tightened to 1.0 mils. Based on ISO 20816-2 standard, the recommended vibration value is 2.5 mils, with an operating threshold of 5.3 mils. The Fan Trim Balance process begins with the engine run-up process to obtain engine vibration data. During the run-up process, the EVMU will record vibrations at N1 levels of 64%, 84%, 88%, 92%, and 96%. Once the data is collected, your EV will adjust the position and size of the balance screw, which will then be replaced at the base of the fan blades. After adjustment, the engine re-run-up to review the magnitude of the vibration. The trim balance process will be repeated until the vibration level matches the specified parameters. The ratio of vibration levels before and after the trim balance process on Engine 1 is 1.5 Mils and 0.4 Mils, with a difference of 1.1 Mils, while on Engine 2 is 1.8 Mils and 0.5 Mils, with a difference of 1.3 Mils. In this case, the Airbus A320 aircraft requires two trim balance processes to ensure that the vibration level in the engine meets the feasibility parameters.
Nano Coating Of Cu-O Particles On Single Slope Solar Distillation Absorber Plates Caturwati, Ni Ketut; Dwinanto, Dwinanto; Farhan, Dhika
FLYWHEEL : Jurnal Teknik Mesin Untirta Vol 10, No 1 (2024): April
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/fwl.v10i1.25410

Abstract

Clean water is one of the basic needs for living creatures, especially humans, such as for drinking, cooking, washing, and so on. Natural sources of clean water have become increasingly rare in recent years, while the water that is available is increasingly polluted and contaminated by human and industrial activities. For this reason, various efforts are needed to process the available water into potable water that is suitable for drinking. One easy and cheap way to treat clean water is by distillation which utilizes solar radiation heat, known as solar distillation. The use of solar distillation technology generally has very low productivity, so it is necessary to develop technology so that productivity can be increased. This paper shows the effect of adding Cu-O nanoparticles to the absorber plate coating paint located at the bottom of the basin of a solar-powered distillation device to increase the productivity of clean water resulting from distillation. Variations in the concentration of Cu-O nanoparticles coated on the absorber plate are: 10%, 15% and 20% by weight of the black paint used. Experimental results show that there is an increase in efficiency of 6.66%, 16.91% and 27.93% for Cu-O concentrations in black paint of 10%, 15 % and 20% by weight respectively.
Liftoff of Propane - Air Diffusion Flames By Axis Symmetric Co-flow Air Injection I Made K. Dhiputra; Harinaldi Harinaldi; NK Caturwati; Dimitri Rulianto
Scientific Contributions Oil and Gas Vol. 32 No. 3 (2009): SCOG
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/scog.32.3.107

Abstract

Combustion of gas with diffusion system is widely used in many residential gas appliances like stove, engine furnaces and industrial furnaces. Phenomenon of lifted flame is often happened at diffusion flame where the stream of fuel and air into combustor flow separately. Hence the combustion process needs time so that mixing of air and fuel reach the condition ready for burnt. This condition make the burner tip protected from high thermal load and more safe to operate. In this paper, propane was ejected into quiescence air through nozzle having 1.8 mm holes diameter. Fuel flow rate was increased until liftoff conditions exceed; hereinafter flow rate of fuel was made constant at 69 ml/s and air was ejected around of fuel with axis symmetric flow. Liftoff behavior of diffusion flames was investigated for various air flow rate: 17.9 ml/s – 89.9 ml/s. Lifted distance decreased from 130 mm to 90 mm when air was injected with flow rate of 19.1 ml/s, however, it increased to 100 mm when air flow rate increased to 35.9 ml/s. Cold-flow simulation showed the moderate air flow rate give a faster density degradation at axial line compared to larger air flow rate. It means moderate flow rate of air support a better air-fuel mixing than faster one.
21. Pelatihan Penggunaan Aplikasi Menggambar Teknik Berbasis Cad Dalam Meningkatkan Kompetensi Dasar Guru SMK Di Provinsi Banten Syarif Abdullah; Ni Ketut Caturwati; Shofiatul Ula; Imron Rosyadi; Slamet Wiyono; Erny Listijorini; Iman Saefuloh; Yusvardi Yusuf; Miftahul Jannah
Al-Ijtimā': Jurnal Pengabdian Kepada Masyarakat Vol 4 No 1 (2023): Oktober
Publisher : Lembaga Penelitian, Publikasi Ilmiah dan Pengabdian kepada Masyarakat (LP3M)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53515/aijpkm.v4i1.98

Abstract

One of the basic competencies that Vocational High School (SMK) mechanical engineering teachers must have is being able to draw technically using CAD (Computer Aided Design) based applications. This competency is part of the competency field of study expertise that teachers must have. From the results of observations in the field, it was found that there are still many vocational school teachers in Cilegon City who are still not experts in using CAD-based applications, one of which is SMKS YP Fatahillah 1 Cilegon. As a form of implementation of one of the duties and obligations of the Tri Dharma of Higher Education, the Mechanical Engineering Department of Sultan Ageng Tirtayasa University carries out a community service program, namely training in the use of CAD-based technical drawing applications at SMKS YP Fatahillah 1 Cilegon. This activity was carried out for 3 days and was attended by 24 participants who work as teachers and laboratory assistants at the vocational school. The training method is delivered by lectures, presentations and direct exercises and practice. From this activity, the results showed that there was an increase in the competency of the participants, namely in their ability to draw techniques.
TURBINE PERFORMANCE ANALYSIS IN THE HIGH PRESSURE HEATER (HPH) CONDITION NOT OPERATING Caturwati, Ni Ketut; Yusuf, Yusvardi; Rosyadi, Imron
Trends in Mechanical Engineering Research Vol 1, No 2 (2023): December
Publisher : Department of Mechanical Engineering, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/timer.v1i2.25671

Abstract

Turbines are one important component in a power plant. The function of the turbine is to utilize the potential energy contained in the steam which is then converted into kinetic energy by the nozzle, then the kinetic energy is converted again into mechanical energy in the turbine blade and shaft rotation. In a rankine cycle after the steam comes out of the Low Pressure Turbine (LPT), the steam will change in phase from gas to liquid by passing through the condenser. The condensate water is heated again through a Low Pressure Heater (LPH) until finally it is heated again to the High Pressure Heater (HPH) before entering the boiler. But whether the performance of the turbine if when the HPH is not operating will decrease. In this study, an efficiency calculation will be carried out between the condition of the HPH operating and the condition of the HPH not operating, as well as finding coal consumption in both conditions. Based on the study, turbine efficiency did not show any significant difference between the condition of the HPH being in operation and the HPH not operating, that is 94.07% for the condition of the HPH to operate and 93.72% for the condition of the HPH not operating. While coal consumption at the time the HPH was operating was 164 Ton / h and at the HPH not operating was 170 Ton /h.
PREVENTIVE MAINTENANCE OF TURBINES IN UNIT 3 AT PT. PLN INDONESIA POWER BANTEN 3 POMU LONTAR Intifalda, Tegar; Dwinanto, Dwinanto; Caturwati, Ni Ketut; Satria, Dhimas; Listijorini, Erny; Rosyadi, Imron
Trends in Mechanical Engineering Research Vol 2, No 1 (2024): June
Publisher : Department of Mechanical Engineering, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/timer.v2i1.26154

Abstract

Maintenance on the turbine must always be carried out, because if one component of the turbine engine is damaged, it will affect the entire performance of the turbine engine. The function of bearing lubrication in turbines is to prevent direct contact between the bearing and the turbine shaft. Therefore, lubrication is needed. Bearing lubrication on the turbine is a very important issue so that the turbine should not be rotated without lubrication will cause material damage. Preventive maintenance of turbines can be pursued by implementing QCC PM. Adding a portable purifier when excessive water content occurs, adjusting the pressure steam seal serves to prevent main steam from entering the bearing area which can cause high water content due to mixing of oil with water. Making a steam block serves to prevent steam from entering the bearing area lubricated by VG 46 medium oil, causing high water content. And routine maintenance to check the mesh aims to assess the feasibility of the mesh and the suitability of the needs of the cleanliness purifier oil system which can be seen from the CBM data, namely tribology monitoring. 
THE IMPACT OF DIFFERENT CONVERTER KIT TYPES ON THE PERFORMANCE OF A DIESEL ENGINE UTILIZING BIOSOLAR AND LPG FUEL Rosyadi, Imron; Caturwati, Ni Ketut; Satria, Dhimas; Suprayogi, Dedy Triawan; Ula, Shofiatul; Relawan, I G Putu
Trends in Mechanical Engineering Research Vol 1, No 2 (2023): December
Publisher : Department of Mechanical Engineering, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/timer.v1i2.25740

Abstract

The impact of the converter kit type on the performance of diesel engines using biodiesel and LPG fuel has been explored. Converter kits play a vital role in transforming the fuel supply system, and experiments have been conducted to assess their influence on various engine performance parameters. The findings of the study indicate that the selection of a converter kit significantly affects the performance of dual-fuel diesel engines (biodiesel and LPG). Gas Heater converter kits, including type 1, type 2, and type 3 variations, were scrutinized in this research. Testing revealed variations in LPG-Biodiesel fuel mixing ratios depending on the type of converter kit employed. For instance, Gas Heater type 3 achieves the highest value with a mixing ratio of 14.4. Furthermore, the performance of the engine in terms of power and torque is also impacted by the type of converter kit utilized. Gas Heater type 1 exhibits peak performance, with power reaching 5.4 kW and torque measuring 34.81 Nm. Despite the operational costs of dual-fuel diesel engines tending to be higher than those using pure biodiesel, the research concludes that the choice of the converter kit type can have a substantial effect on engine performance, particularly regarding fuel efficiency.
ADDITION OF ALUMINUM OXIDE NANO PARTICLES TO THE ABSORBER PLATE COATING TO INCREASE THE PRODUCTIVITY OF SOLAR DISTILLATION Caturwati, Ni Ketut; Sukamto, Dwinanto; Fauzi, Rizki
Trends in Mechanical Engineering Research Vol 1, No 1 (2023): June
Publisher : Department of Mechanical Engineering, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/timer.v1i1.20455

Abstract

Water is a natural resource that is very important for life in the world, especially for humans and other living things. There are few areas in Indonesia that have unsuitable water due to water pollution and limited fresh water source. Distillation is an effective way to produce clean water that is free from impurities in the form of small solids, germs and bacteria. One type of distillation systems is a solar distillation. However, the use of these still has low productivity. There are several ways to increase the productivity of solar distillation systems, one of them is by adding thermal energy storage material such as aluminum oxide (Al2O3) nanoparticles. This study based on  experimental method by comparing a solar distillation systems with the addition of Al2O3 nanoparticles on the absorber plate coating to the coating without the addition of Al2O3. The test results showed that the addition of Al2O3 nanoparticles increased the productivity of solar distillation. The results show the addition of mass concentration of Al2O3 (nano particles): 10%; 15% and 20% ,  increased distillate  production by: 44.73%; 88.98% and 134.85% compared without the addition of nanoparticles to the absorber plate coating.
SIMULATION OF THE EFFECT OF THE COVER GLASS ANGLE INCLINE ON A SINGLE SLOPE SOLAR DISTILLATOR Caturwati, Ni Ketut; Wahyudi, Hadi; Alda, Apriyani; Wiyono, Slamet; Dwinanto, Dwinanto
Trends in Mechanical Engineering Research Vol 2, No 2 (2024): December
Publisher : Department of Mechanical Engineering, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/timer.v2i2.30947

Abstract

Distillation is a water purification process through evaporation and condensation. Research on solar distillation was developed using the Computational Fluid Dynamic (CFD) method to obtain an overview of the transmission of solar radiation heat by the cover glass for variations in the angle of the glass inclination of 100, 200 and 300. The water height in the basin is 100 mm. The simulation results show that the heating process with variations in the angle of the cover glass affects the distillation results. The smaller angle of the cover glass inclination, the higher heat flux entering the basin so that the evaporation process becomes higher which ultimately increases the amount of distillate water production produced. The highest heat flux entering the distillation system was achieved by the system with a cover glass inclination angle of 100 with a value of 388.525 W / m2, while the lowest was at an angle of 300 with a value of 379.792 W / m2. In addition, the highest distillate production was obtained on the cover glass with an inclination angle of 10 ° of 1.078 cc. For operational hours at 13.00 WIB and simulation time 180 seconds.
Tensile Strength of Packaging Materials Made of Rice Fiber with Gondorukem Coating Caturwati, Ni Ketut; Pinem, Mekro Permana; Visoka, Cri Kalki
FLYWHEEL : Jurnal Teknik Mesin Untirta Vol 11, No 1 (2025): April
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/fwl.v11i1.34128

Abstract

Packaging is one of the important needs in the food business that is difficult to avoid. Developing packaging products for food is an important thing that must be done to maintain cleanliness, health and the environment. Packaging waste that uses plastic as the basic material causes environmental pollution because it is not easily decomposed. Green packaging is one form of packaging that uses environmentally friendly materials such as rice straw. Bio-foam from straw combined with PVA, Glycerin, corn starch and distilled water is made into sheets for packaging. This sheet is tested with the addition of a coating derived from gondorukem which comes from plants. With this coating, it is expected to increase the tensile strength and hydrophobicity of the material surface. Testing was carried out with variations in the mixture of gondorukem and alcohol as the basic coating material, namely gondorukem concentrations of 20%, 40% and 60%. The tensile test results showed that a coating with a concentration of 60% gondorukem produced the highest tensile strength value. The increase in tensile strength reached 102% of the tensile strength of the sheet without gondorukem coating.
Co-Authors . Angga, . . Haryadi Agung Sudrajad Agung Sudrajat Ahmad Fauzi Alda, Apriyani Aminullah M., Aminullah Aminullah Mawardi Aminullah Mawardi, Aminullah Ana Maulana, Ana Angga Angga Dedy Triawan Suprayogi Dhimas Satria Dimitri Rulianto Dwinanto Dwinanto Dwinanto, Dwinanto Dwinanto, Dwinanto Dwinanto, Dwinanto Eko Prasetyo Endang Suhendi, Endang Erny Listijorini Fahrizal Pradana Putra Farhan, Dhika Fauzi, Rizki Firda Andini Hadi Wahyudi Harinaldi Harinaldi Haryadi - Haryadi Haryadi Haryadi Haryadi Haryadi Haryadi Heri Kusharyanto I Made K. Dhiputra Imron Rosyadi Imron Rosyadi Imron Rosyadi Intifalda, Tegar Khairullah, Adhitya Listijorini , Erny Listijorini, Erny Mekro Permana Pinem Mekro Permana Pinem Mekro Permana Pinem Mekro Permana Pinem, Mekro Permana Miftahul Jannah Miftahul Jannah Muhammad Affan Adhani Muhammad Ilham Al Faiz Nugroho, Dimas Augie Pinem, Mekro Permana Relawan, I G Putu Reza Reza romi wiryadinata Rosyadi , Imron Rosyadi, Imron Rosyadi, Imron Rosyadi, Imron Saefuloh, Iman Salsabila, Unik Hanifah Saputra, Ehsan Tri Shofiatul Ula Sidik Susilo Slamet Wiyono Sukamto, Dwinanto Sukamto, Dwinanto Sunardi Sunardi Suprayogi, Dedy Triawan Syahrul Ivandy Syarif Abdullah Ula, Shofiatul Ula, Shofiatul Visoka, Cri Kalki Wahyudi, Hadi Wardana, Muhammad Bayu Wiyono , Slamet Wiyono, Slamet Yudi Septian Yudi Septian, Yudi Yusuf , Yusvardi Yusuf, Yusvardi Yusvardi Yusuf