The prediction of the acoustic radiation of the compressor shell is resulting from a numerical vibro-acoustic model, involving the description of the compressor pump structure, compressor gas cavity and compressor shell structure, through the use of the FEM and BEM techniques. The presence of refrigerant and lubricating oil in the compressor cavity were taken into account, as well as the presen...

Pipelines are pressure vessels. Their enviable safety record compares weil with other transportation modes. Typical pipeline fatality rates are about 1% those of rail or air which are, in turn, about 1% of highway fatalities. Pipeline safety is first assured by rigorous inspection during pipe manufacture and line construction. All welds are inspected using radiography to detect voids and ultras...

In this paper, the statistical analyses are presented to study the thermal efficiency and power output of gas turbine (GT) power plants. For analyzing gas turbine operation and performance, a novel approach is developed utilizing the response surface methodology (RSM) which is based on the central composite design (CCD) method. An attempt is made to study the effect of some operational factors ...

Determination of the starter torque-speed diagram is a major task in the design or selection of a proper gas turbine starter. In this paper, the maximum power of the MGT-40 gas turbine starter was calculated based on the dynamics of the rotor, start-up logic, and compressor map. In a recent research, the pressure ratio was assumed as a linear function of the rotor speed and the required starter...

In the present study oneand two-dimensional numerical models are proposed for calculating gas flow and valve dynamics in a reciprocating compressor. It turns out that they are capable of capturing the most important physical effects during a compression cycle, namely the interaction between pressure waves inside the cylinder and valve dynamics. In order to model the heat transfer from the gas t...

With the increasing of the environmental concerns, carbon dioxide (CO2) as an alternative refrigerant has been investigated intensively. In this study, the heating performance of a transcritical CO2 heat pump system with a twinrotary compressor was investigated. The transcritical CO2 heat pump with gas injection was tested by varying gas injection ratio and outdoor temperature at the optimum re...

PT PEP as an upstream energy company has the vision to become a world-class company. It mission run oil, gas, and new renewable businesses in integrated manner, based on strong commercial principles. GNK Gas Compression Station is one of production facilities incorporated work area where station receives gas from 3 Block Station, 2 1 Station.GNK consists several pieces equipment which aging wit...

Introduction Conclusions References