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All Journal Syntax Literate: Jurnal Ilmiah Indonesia Indonesian Journal of Multidisciplinary Science Edunity: Kajian Ilmu Sosial dan Pendidikan Journal of Social Science Return : Study of Management, Economic and Bussines Jurnal Ekonomi, Teknologi dan Bisnis
Zhiliang, Wang
Unknown Affiliation
Humanities Astronomy Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Mechanical Engineering Public Health Social Sciences Other

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Optimization of the Protection Interlocking Function of a 56 MW Unit Steam Turbine Zhiliang, Wang; Hongwei, Feng; Ihsan, Muhammad
Syntax Literate Jurnal Ilmiah Indonesia
Publisher : Syntax Corporation

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36418/syntax-literate.v9i12.55146

Abstract

There are 2 x 56MW units in Kendari power plant, each unit is equipped with two 100% capacity electric feed pumps, one running and another one backup. During the operation of the unit, two defects, such as large vibration of the BFWP and high temperature of the thrust pad on the working face, were found to affect the operation. The large vibration of the BFWP is mainly due to the falling off of the positioning pin of the bearing bracket of the non-drive end, which causes the center to sink, and the balance drum and the balance sleeve are rubbed dynamically and statically. The main reason for the high temperature of the thrust pad of the BFWP is that the diameter of the balance drum is small, which leads to an increase in the axial thrust borne by the thrust pad of the working face, and the high temperature of the tile. This study aims to diagnose the root causes of these defects, implement corrective measures, and optimize pump performance to enhance operational safety. A combination of on-site inspections, data analysis, and engineering interventions was conducted. Findings indicate that structural realignment and reengineering of the balance drum significantly mitigated vibration and temperature issues. The study concludes that proactive maintenance and design optimization are essential for the reliable operation of power plant equipment, with implications for enhancing long-term efficiency and safety.thrust padthrust pad
Research and Application of Online Sampling Technology for Mercury and CO2 in Flue Gas Emission Continuous Monitoring Systems of Thermal Power Plants Zhiliang, Wang
Return : Study of Management, Economic and Bussines Vol. 4 No. 11 (2025): Return: Study of Management, Economic and Business
Publisher : PT. Publikasiku Academic Solution

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57096/return.v4i11.421

Abstract

Monitoring  emissions  in  thermal  power  plants  requires  high-accuracy and real-reliability systems, particularly for critical pollutants such as mercury (Hg) and carbon dioxide (CO2). Conventional manual sampling often faces limitations in response  speed,  data  continuity,  and  representativeness,  creating  challenges  for compliance with increasingly strict environmental regulations. This research aims to  analyze  the  design,  performance,  and  field  application  feasibility  of  an  online sampling technology integrated within Continuous Emission Monitoring Systems (CEMS) specifically for Hg and CO2 in flue gas. The methodology includes a technical  evaluation  of  sampling  modules,  assessment  of  sensor  accuracy  and stability, calibration and validation using reference methods, and on-site testing in a  coal-fired  thermal  power  plant.  Data  were  analyzed  through  comparative measurements, response time analysis, and long-term operational reliability testing. Results    indicate    that    online    sampling    technology    significantly    improves measurement   continuity   and   reduces   data   fluctuation   compared   to   manual sampling.  The  system  demonstrates  high  accuracy,  with  CO2  measurement deviations within regulatory thresholds and mercury detection sensitivity enhanced through optimized temperature-controlled sampling lines. Additionally, technology reduces   maintenance   frequency   by   minimizing   condensation   and   particulate interference,  thereby  increasing  system  uptime.  Overall,  the  online  sampling approach  offers  a  more  stable  and  efficient  solutionfor  emission  monitoring  and supports  the  implementation  of  stricter  environmental  compliance  strategies  in thermal power plants
Research and Application of Cathodic Protection Technology for Underground Pipelines: A Case Study of the IPP Sumsel-5 Water Intake Project Zhiliang, Wang
Journal Of Social Science (JoSS) Vol 4 No 11 (2025): Journal of Social Science
Publisher : Al-Makki Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57185/c8jv2506

Abstract

Underground pipelines are exposed to continuous electrochemical corrosion during long-term service, which may result in reduced wall thickness, perforation, and leakage, posing serious risks to operational safety. This study examines the application of cathodic protection (CP) technology as an effective and economically viable corrosion prevention strategy, focusing on the underground water intake pipelines of the Sumsel-5 Independent Power Producer (IPP) project. The objective of this research is to evaluate the effectiveness of a constant-potential CP system in controlling corrosion and maintaining pipeline integrity under real operational conditions. The study employed a case study approach, beginning with on-site assessments of environmental characteristics, corrosion patterns, and baseline electrochemical potential. Subsequent stages included CP system design, installation, and monitoring, with technical parameters tailored to site-specific requirements. Field measurements were conducted to evaluate performance, and maintenance procedures were documented to ensure long-term system stability. The results reveal that the implementation of the constant-potential CP system successfully maintained pipeline surface potential below –0.85 V relative to a saturated calomel electrode, meeting international protection standards. The system demonstrated consistent performance with significant reduction in corrosion risk and enhanced operational reliability. This study provides an applicable technical reference for similar water intake and underground transmission pipeline projects, highlighting the importance of integrated system design, monitoring, and maintenance in achieving sustainable corrosion protection.
Research and Application of Corrosion Prevention Technology for Underground Water Intake Pipelines Based on ICCP (Impressed Current Cathodic Protection) Zhiliang, Wang
Edunity Kajian Ilmu Sosial dan Pendidikan Vol. 4 No. 11 (2025): Edunity: Social and Educational Studies
Publisher : PT Publikasiku Academic Solution

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57096/edunity.v4i11.457

Abstract

Underground water intake pipelines play a critical role in supporting the operational reliability of the IPP Sumsel-5 facility, including reuse water, service water, and fire protection systems. These pipelines supply essential resources such as boiler feedwater, steam support, and fire safety, making their integrity vital for continuous plant operations. However, prolonged underground service exposes them to severe corrosion risks that may lead to leaks, water loss, reduced system performance, and potential equipment damage. This study aims to analyze and implement an effective corrosion prevention strategy using Impressed Current Cathodic Protection (ICCP) technology to enhance pipeline lifespan and operational safety. A field-based engineering assessment was conducted involving soil resistivity measurement, pipeline potential testing, corrosion rate evaluation, and system modeling to identify the extent of corrosion threats. The ICCP design framework included anode bed configuration, current output determination, rectifier sizing, and protection potential optimization suited to site-specific soil characteristics. Data collection and analysis were performed through on-site inspection, electrochemical measurement, and simulation-based verification. The results show that the application of ICCP significantly improved the protection potential of the pipelines, maintaining the recommended - 850 mV (Cu/CuSO4) criterion and reducing corrosion progression to a negligible rate. The optimized ICCP system demonstrated stable current distribution, extended pipeline service life, and reduced maintenance risks. Overall, this study confirms that ICCP technology provides a reliable and effective solution for mitigating underground pipeline corrosion at IPP Sumsel-5 and can be adopted as a long-term corrosion management strategy.
Research on Maintenance Optimization and Performance Enhancement of a Medium-Speed Roller Mill Zhiliang, Wang
Indonesian Journal of Multidisciplinary Science Vol. 5 No. 2 (2025): Indonesian Journal of Multidisciplinary Science
Publisher : International Journal Labs

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55324/ijoms.v5i2.1219

Abstract

The medium-speed roller mill at Kendari-3 Power Plant’s Unit 2 experienced significant wear, efficiency decline, and operational instability due to prolonged continuous operation, necessitating a systematic optimization approach. This study aims to analyze, implement, and evaluate maintenance optimization strategies to restore and enhance mill performance, while establishing a structured preventive maintenance framework for long-term reliability. A research methodology combining engineering inspection, technical diagnostics, overhaul execution, and quantitative performance testing was employed. The technical interventions included optimization of the maintenance layout, upgrading of critical material components, enhancement of sealing systems, fine adjustments of operational parameters, expansion of air duct capacity, and the development of a performance-based preventive maintenance file. Performance data were collected before and after the overhaul to measure operational gains. The results demonstrate that the mill’s rated output was successfully restored and stabilized at ?35 t/h, accompanied by a 3% reduction in specific power consumption under full-load conditions. Furthermore, the service life of grinding rollers increased by approximately 30%, while total maintenance duration was reduced by 20%, indicating substantial improvements in reliability, efficiency, and maintainability. This research provides valuable technical insights and practical references for optimizing pulverizing systems in thermal power plants and contributes to engineering-based decision-making for equipment maintenance strategies.
Design and Application of the Production Information System at PT Datang DSSP Power Indonesia Zhiliang, Wang
Jurnal Ekonomi Teknologi dan Bisnis (JETBIS) Vol. 4 No. 11 (2025): Jurnal Ekonomi, Teknologi dan Bisnis
Publisher : Al-Makki Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57185/ewbe8b16

Abstract

This study investigates the design, implementation, and evaluation of a real-time Production Information System (PIS) developed for PT Datang DSSP Power Indonesia, a joint-venture corporation operating three coal-fired power plants. Increasing operational complexity in thermal power generation demands integrated monitoring solutions that enhance production efficiency, strengthen safety management, and improve decision-making processes. This research aims to develop and assess a PIS capable of delivering real-time production data while supporting centralized supervision through a set of interconnected technological modules. The study employs a system design approach based on operational requirements, phased technological implementation, and functional performance evaluation. The proposed PIS integrates four core components: a site-wide Closed-Circuit Television (CCTV) system, real-time production data acquisition and upload, a video conferencing platform, and secure broadband connectivity enabling reliable data transmission to the corporate headquarters. The implementation of the PIS demonstrates substantial improvements in production efficiency, safety monitoring, and resource allocation. The system enhances cross-site visibility, supports faster situational assessment, and accelerates strategic decision-making within the organization. Overall, the findings provide a valuable reference for developing integrated monitoring and information systems in the thermal power generation industry and highlight the broader applicability of such systems to other technology-driven energy sectors.
Co-Authors Hongwei, Feng Muhammad Ihsan