Authors

Djeli Satrijo

Faculty of Engineering, Department of Mechanical Engineering, Diponegoro University, Indonesia

Toni Prahasto

Faculty of Engineering, Department of Mechanical Engineering, Diponegoro University, Indonesia

Ojo Kurdi

Faculty of Engineering, Department of Mechanical Engineering, Diponegoro University, Indonesia

Immanuel Simanjuntak

Faculty of Engineering, Department of Mechanical Engineering, Diponegoro University, Indonesia

Ian Yulianti

Physics Study Program, Faculty of Mathematics and Natural Sciences, Universitas Negeri Semarang, Indonesia

Abstract

Reciprocating compressors are essential in the oil and gas industry for their ability to deliver high-pressure gas and maintain process stability under varying loads. At PT Kilang Pertamina Internasional Refinery Unit II Dumai, the 200-C-1-A/B reciprocating compressor plays a vital role in regulating vessel pressure in Unit 200 Area HSC by supplying compressed mixed gas. During operational monitoring, an increase in discharge temperature was observed, nearing the alarm threshold and raising concerns regarding equipment performance and operational safety. This study analyzes field data including operational parameters, cooling system performance, lubrication status, and gas composition to identify the factors contributing to the temperature rise. The discharge temperature is also evaluated using an isentropic adiabatic compression approach, incorporating the specific heat ratio of the gas mixture to validate thermodynamic behavior. The analysis indicates reduced cooling effectiveness and possible degradation of system components, which are closely linked to maintenance intervals and procedures. These insights emphasize the critical role of routine maintenance supported by data-driven evaluations to sustain compressor reliability and prevent performance deterioration in refinery operations.

Keywords

Reciprocating Compressor Discharge Temperature Isentropic Compression Specific Heat Ratio Maintenance Strategy

Citation of this Article

Djeli Satrijo, Toni Prahasto, Ojo Kurdi, Immanuel Simanjuntak, & Ian Yulianti. (2025). Thermal Analysis of Discharge Valve Overheating in the Make-Up Side of Compressor 200-C-1-A/B. Current Journal of Engineering and Science Research. 2(5), 1-6. Article DOI: https://doi.org/10.47001/CJESR/2025.205001

Licence Copyright (c) 2026 Current Journal of Engineering and Science Research. This work is licensed under a Creative Commons Attribution Non Commercial 4.0 International Licence.

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