ANALYSIS OF THE EFFECT OF WORKING PRESSURE VARIATIONS ON ENGINE SPEED (RPM) IN A RECIPROCATING COMPRESSOR TEST DEVICE

  • Alhasdi
  • Desmarita Leni
  • Muchlisinalahuddin
  • Ilham Alghani
  • Yuni Vadila
  • Reyhan Stevano
Keywords: Polytropic Process, Reciprocating Compressor, Rotational Speed, Volumetric Efficiency, Working Pressure

Abstract

Reciprocating compressors are one of the important devices in industrial applications that require high air pressure. Variations in working pressure applied to the system are believed to affect dynamic performance, especially engine rotation speed (RPM). This study aims to analyze the effect of variations in working pressure on RPM in a reciprocating compressor test device. The methods used include experimental testing with three speed levels (Speed ​​1–3) over a certain time interval, as well as theoretical analysis using the polytropic equation and calculation of volumetric efficiency ηv​ The results show that an increase in working pressure is positively correlated with an increase in RPM. At Speed ​​3, the maximum pressure reaches 3.8 bar with an RPM of 8034. This study indicates that operating speed regulation has a significant role in optimizing compressor performance.

Author Biographies

Alhasdi

Mechanical Engineering, Engineering, Universitas Muhammadiyah Sumatera Barat, Indonesia

Desmarita Leni

Mechanical Engineering, Engineering, Universitas Muhammadiyah Sumatera Barat, Indonesia

Muchlisinalahuddin

Mechanical Engineering, Engineering, Universitas Muhammadiyah Sumatera Barat, Indonesia

Ilham Alghani

Mechanical Engineering, Engineering, Universitas Muhammadiyah Sumatera Barat, Indonesia

Yuni Vadila

Mechanical Engineering, Engineering, Universitas Negeri Padang, Indonesia

Reyhan Stevano

Mechanical Engineering, Engineering, Universitas Muhammadiyah Sumatera Barat, Indonesia

Published
2025-08-21
Section
Articles