COMPARISON OF PRESSURE DROP ON JUMPER LINE AND PRESSURE REGULATOR VALVE MANUALLY AND HYSYS SIMULATION AT PT. PERTA ARUN GAS

Abstract

ABSTRACT

BOG Compressor K-6801 C/D functions to remove excess vapor from the tank,
maintain tank pressure, and provide fuel for power generators in utility units and
Sent Out Gas to PLTMG Arun. The compressor recycle line temperature must be
controlled, as excessive heat increases tank pressure, while suction temperatures
near -100°C may cause surging and compressor failure. This study aims to analyze
the effect of pipe size on pressure drop and compare theoretical and simulated
results using Aspen Hysys, an engineering software for process simulation.
Manual calculations show a 3-inch pipe size has the lowest pressure drop, 0.22
kg/cm², while Aspen Hysys calculates 0.13 kg/cm² at a flow of 75 m³/hr. Larger
pipes reduce pressure drop, with a 2-inch jumper line showing 2.17 kg/cm² and a
3-inch line showing 2.37 kg/cm² at higher flows. These values align with the
manufacturer's design pressure of 2.11 kg/cm².

Keywords: BOG Compressor, Hysys, Jumper Line, pressure drop, pipe.