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ANALISIS PENGARUH COMPRESSOR WASHING TERHADAP EFISIENSI KOMPRESOR DAN EFISIENSI THERMAL TURBIN GAS BLOK 1.1 PLTG UP MUARA TAWAR Bambang Setiawan; Gunawan Hidayat
SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Vol 11, No 1 (2017): SINTEK JURNAL
Publisher : University of Muhammadiyah Jakarta

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Abstract

Muara Tawar Gas Turbine Power Plant is one of the generating units in Indonesia. Combined Cycle Power Plant is a plant that has a fast response to load changes. Therefore changes in the load on the combined cycle often occurs. To keep performance at combined cycle power plant, existing equipment must be maintained in a condition PLTGU order to work optimally. At this final project will be analysis the effect compessor washing to compressor efficiency and gas turbine eficiency of gas turbine combine cycle power plant block 1.1 UP Muara by analyzing the resulting efficiency compressor and gas turbine. From the results of this study found that the highest compressor efficiency of gas before compressor washing is 0.31% and after compressor washing is 0.53 %. Highest Thermal efficiency before compressor washing is 0.039% and after compressor washing is 1.461%.
Perancangan E-Catalog Produk guna Mempromosikan Produk Plakat pada Putri Advertising M. Irfan Tarmizi; Lailla, Nor; Gunawan Hidayat; Restika Eka Pratiwi
JURPIKAT (Jurnal Pengabdian Kepada Masyarakat) Vol. 6 No. 3 (2025)
Publisher : Politeknik Piksi Ganesha Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37339/jurpikat.v6i3.2457

Abstract

In today's digital era, product marketing activities are not only carried out conventionally. Business actors such as Putri Advertising need promotional media that are more effective, attractive, and easily accessible to consumers widely, one of which is through the creation of a plaque e-catalog as a digital promotional media. The purpose of this activity is to increase the competitiveness of business actors and the creation of a professional e-catalog that can be used as a partner marketing tool. The method of this activity is mentoring the creation of a plaque e-catalog. As a result, with this e-catalog, it is hoped that the reach of plaque marketing will be wider, increase selling value, and strengthen Putri Advertising's existence in the competition of the creative industry.
Analisa Termal Sistem Pemanas pada Alat Mesin Cetak Baut Platik Skala UMKM Fitrah Ramadhan, Panji; Gunawan Hidayat
Journal of New Trends in Sciences Vol. 3 No. 4 (2025): November: Journal of New Trends in Sciences
Publisher : CV. Aksara Global Akademia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59031/jnts.v3i4.744

Abstract

This study aims to analyze the thermal performance of the heating system in a small-scale plastic bolt molding machine using LDPE material, in order to determine process parameters that are efficient while maintaining product quality. The method used includes experimental testing at two set-point temperatures (90 °C and 120 °C), measurement of melting time and feed mass per cycle, as well as heat balance calculations separating the contributions of conduction, convection, and radiation on the barrel heated by a band heater. In addition, the power/energy requirement per cycle and productivity projections based on hopper capacity were calculated. The results show that increasing the set-point from 90 °C to 120 °C accelerates melting from ±240 s to ±180 s (≈25% faster). Heat transfer analysis confirmed the dominance of conduction (≈329.7 W at 90 °C and ≈471 W at 120 °C), while convection and radiation contributions were much smaller; the total system heat rate was ≈342.7 W (90 °C) and ≈490.8 W (120 °C). The discussion highlights the process trade-off: higher set-points increase production rate and mold filling quality (due to lower melt viscosity), but may raise energy consumption per cycle and require tighter mold temperature control to limit shrinkage/warpage. The practical implications for SMEs are the need for efficiency strategies based on barrel insulation, heater contact area optimization, and correlation of temperature-time settings with quality and energy consumption targets. This study concludes that controlled temperature and heating duration, supported by simple yet targeted thermal design, can improve cycle time consistency, dimensional precision, and energy efficiency in small-scale plastic bolt molding machines.
Perancangan dan Pembuatan Simulator Kompresor Torak Kapasitas 3 Bar Sekala Laboratorium Muhammad Haris Ali Murfi; Sulis Yulianto; Andre Rizky; Gunawan Hidayat
EduInovasi:  Journal of Basic Educational Studies Vol. 5 No. 3 (2025): EduInovasi:  Journal of Basic Educational Studies
Publisher : Intitut Agama Islam Nasional Laa Roiba Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47467/edu.v5i3.9653

Abstract

This research aims to design and build a laboratory-scale 3-bar reciprocating compressor simulator as a learning tool to understand the working principles of a single-cylinder reciprocating compressor. The design process includes material selection, frame construction, component installation, and piping system, as well as structural analysis using SolidWorks. Tests were conducted to measure mass flow rate, flow velocity, and pressure distribution. The results showed that increasing valve opening and motor speed increased the flow rate and mass flow rate, with the highest value being 0.0000338 kg/s at 1480 rpm. The piping system was capable of delivering pressurized air up to 3 bar, with even heat distribution and a peak temperature of 32°C. The structural analysis results showed agreement between theoretical calculations and simulations with a deviation below 15%. The strength of the welded joints had a safety factor of 182.8, indicating the frame could safely withstand operational loads. This simulator is considered effective as an interactive learning tool to support theoretical and practical understanding in mechanical engineering.