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All Journal Jurnal Informasi dan Teknologi International Journal of Health, Economics, and Social Sciences (IJHESS) Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse) Majalah Teknik Mesin
Gurruh Dwi Septano
Study Programme of Mechanical Engineering, Polytechnic PGRI Banten, Serang, Indonesia
Aerospace Engineering Automotive Engineering Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences

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COMPARATIVE ANALYSIS OF PRESSURE AND FLOW CHARACTERISTICS IN BASIC AND MODIFIED AIR COMPRESSOR PIPELINE USING COMPUTATIONAL FLUID DYNAMICS IN POWER PLANT TANJUNG ENIM 3X10 MW Septano, Gurruh Dwi; Ramadhoni, Tri Satya; Sumarna, Herlin
Media Mesin: Majalah Teknik Mesin Vol. 25 No. 1 (2024)
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/mesin.v25i1.2815

Abstract

Air compressor plays a crucial role by converting electrical energy into kinetic energy in the form of compressed air. This study specifically concentrates on assessing the performance of two compressors that operate alternately, with one compressor in standby mode. Unfortunately, compressor unit #1 faced issues with its drying system, rendering it unable to function within the current pipe network. In order to rectify this, proposed modifications to the pipeline network are introduced and scrutinized. To analyze these modifications, Computational Fluid Dynamics (CFD) is employed to evaluate and compare pressure and flow characteristics in both the existing and modified pipe configurations. The CFD analysis utilizes computer engineering software, with SolidWorks serving as the primary modeling and simulation tool. The assumption is made that the Reynolds number corresponds to laminar flow, factoring in pipe diameter and compressor volume rate.The resulting CFD data offers valuable insights into pressure and velocity distributions within the existing and modified pipeline networks. During the pressure simulation, surface pressure and output on both standard and modified pipes exhibit relatively similar pressure values at 7 bar. However, in the air velocity simulation, surfaces of standard and modified pipes maintain a consistent range of 0 – 5 mm/s. Notably, from the pipe output side, air velocity in standard and modified pipes displays distinct speed contours. Standard pipes show the highest speed between 0.25 – 0.38 mm/s, whereas modified pipes exhibit the highest speed within the range of 0.15 – 0.2 mm/s. This study aims to provide a comprehensive evaluation of the proposed modifications, seeking to enhance understanding of the fluid dynamics within air compressor systems. The outcomes of this research have the potential to contribute significantly to optimizing the performance and efficiency of these systems, thereby offering benefits across various industrial applications.
Analysis of User Experience (UX) and User Interface (UI) on Digital Banking Applications to Increase Customer Satisfaction in Banten Province Nafiz Annas; Rezty Arizta Putri; Deti Kurniati; Reni, Reni; Gurruh Dwi Septano
International Journal of Health, Economics, and Social Sciences (IJHESS) Vol. 7 No. 2: April 2025
Publisher : Universitas Muhammadiyah Palu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56338/ijhess.v7i2.7459

Abstract

Digital transformation in the banking sector has brought convenience to financial transactions through mobile banking applications. However, the quality of User Experience (UX) and User Interface (UI) is still a challenge, especially for people with low digital literacy. This service activity aims to improve the understanding and skills of the community in Banten Province in using digital banking applications effectively and safely. The implementation method includes an initial survey, simulation-based training, focus group discussions (FGDs), pre-post test evaluations, and the formation of village digital communities. The participants consisted of MSME players, housewives, and students, with a total of 120 people. The results of the activity showed a significant improvement in the digital literacy aspect, where the participants' understanding score rose from 52.3% to 83.7%. As many as 88% of participants were able to complete digital transactions independently after the training. The focus on digital security also increased user trust in the app. FGD findings indicated the need for improvement in application design, particularly interface navigation, icon size, and language simplification. Community-based UX/UI recommendations have been compiled and submitted to partner banks. The outputs of the activity include scientific articles, service reports, and the formation of a digital community forum for banking application users. This activity proves that an educative and participatory approach is able to answer the challenges of banking digitalization in real terms. This program is expected to become a replication model in an effort to increase digital financial inclusion based on local needs.
Analysis of Hardness Level in Enim River for Demineralization Water Process in Thermal Power Plant Tanjung Enim Fajri, Asri Alfiah; Tb. Ade Rahmatullah; Gurruh Dwi Septano; Nasaruddin
Jurnal Informasi dan Teknologi 2025, Vol. 7, No. 2
Publisher : SEULANGA SYSTEM PUBLISHER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.60083/jidt.vi0.632

Abstract

Demineralization water is removal of dissolved ionic mineral impurities present in water and other liquids. Mineral content in water can cause crusts in power plant equipment such as boilers and turbine, lowering yield and selectivity values in the reaction process. The aim of the research is to diagnose the conditions of water process Tanjung Enim thermal power plant with standard value of ASME CRTD Vol. 34 and Power Plant water treatment standard. Demineralization Water treatment process starts from Multimedia Filter (MMF), Carbon Filter (CF), Reverse Osmosis (RO), Electrodeionization. Demineralization water sampling taken in January, february, march and April. The water sampling used in RAW Water, Feed RO, Electrodeionization process, feed water and boiler drum to measure the parameters of pH, conductivity, turbidity, Fe, Cl2 and Si02, P04 and ions of Na+, Fe+, Cu+ some of parameters result the fluctuative value but still in both of water treatment standard.
Detection of Damage Motor and Coal Crusher in Power Plant Tanjung Enim 3 X 10 MW Using Vibration Analysis Septano, Gurruh Dwi; Ikbal, Ikbal; Fathoni, Fathoni; Sriwijaya, Sayid Bahri; Putri, Salsanabila Mariestiara
Journal of Ocean, Mechanical and Aerospace -science and engineering- Vol 68 No 3 (2024): Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse)
Publisher : International Society of Ocean, Mechanical and Aerospace -scientists and engineers- (ISOMAse)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36842/jomase.v68i3.378

Abstract

Motor and coal crushers are critical in coal size reduction for efficient energy production. Continuous operation often impacts their functionality, necessitating effective maintenance methods. This study employs vibration analysis to monitor the health and detect potential faults in the motor and coal crusher. Vibration values, measured under load and no-load conditions, were analyzed in vertical, horizontal, and axial directions using ISO 10816 standards. Results show that while vibration levels remained within safe limits, increased readings in specific areas, particularly at the Crusher NDE in axial direction under load conditions, suggest potential issues like misalignment or bearing wear. Prominent vibration peaks at lower frequencies in the spectrum further support these findings. This research underscores the importance of routine vibration monitoring to preemptively address machine faults, ensuring optimized operation and minimized downtime. Vibration analysis proves effective for predictive maintenance and operational reliability in coal processing systems.
Co-Authors Deti Kurniati Fajri, Asri Alfiah Fathoni Fathoni Ikbal Ikbal Nafiz Annas Nasaruddin Putri, Salsanabila Mariestiara Ramadhoni, Tri Satya Reni Reni, Reni Rezty Arizta Putri Sriwijaya, Sayid Bahri Sumarna, Herlin Tb. Ade Rahmatullah