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Keywords: efficiency
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Proceedings Papers

Paper presented at the PSIG Annual Meeting, May 3–7, 2021
Paper Number: PSIG-2110
... impact on transportation efficiency in terms of energy consumption as well as the impact on the transport capacity of a pipeline where the equipment was sized originally for natural gas transport, are assessed. Introduction and Background The increased use of renewable energy will require the...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, May 14–17, 2019
Paper Number: PSIG-1906
..., but two poorly measured parameters. When DRA are used, there are two different approaches to identify DRA efficiency distribution over a pipeline. For both of them first we need to identify how hydraulic resistance change over distance traveled by DRA in a pipeline. This is done similarly to the...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, May 14–17, 2019
Paper Number: PSIG-1911
... Factors influencing the available power at the power turbine output shaft include: Ambient Temperature Ambient Pressure Power Turbine Speed Inlet / Exhaust Pressure Losses Fuel Accessory Loads Relative Humidity Factors influencing the heat rate or efficiency of the engine include: Load...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, May 15–18, 2018
Paper Number: PSIG-1801
... acknowledgment of where and by whom the paper was presented. Write Librarian, Pipeline Simulation Interest Group, 945 McKinney, Suite #106, Houston, TX 77002, USA info@psig.org. ABSTRACT Predicting the efficiency of a DRA is still dependent on the use of models developed through field tests. Two forms of the...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, May 9–12, 2017
Paper Number: PSIG-1704
.... LZfGT ZT PhhGC PP eD P T CQ a a aUD DU b b 2 222 5.2 1 where: Q = Flow rate C1 = Units conversion constant Tb = Base temperature Pb = Base pressure D = Pipe diameter e = Pipe efficiency PU = Upstream pressure PD = Downstream pressure C2 = Units conversion constant G = Specific...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, May 9–12, 2017
Paper Number: PSIG-1707
... basic hydraulic pump equations. Actual system efficiency was used. Both maximum surge pressure and pressure rise rate are calculated each model time step. This same method can be used for other energy recovery systems hydraulic analysis. In this study, a high-pressure feed pump with a discharge...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, May 9–12, 2017
Paper Number: PSIG-1708
... compressors. This requires an accurate, and computationally efficient method to calculate the fuel consumption of a gas turbine driven centrifugal compressor system. This feature is available for any current pipeline modeling software. The issue, however, is in accuracy of the currently provided methods of...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, May 12–15, 2015
Paper Number: PSIG-1510
... system volQ - adH . Exactly the same approach is basically used for the working space in efficiency variables - volQ . and, parameterized by the efficiency values, also projected (and displayed) in the same invariant coordinate system volQ - adH . However, there have been new developments in design and...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, May 12–15, 2015
Paper Number: PSIG-1513
... thickness result simulation result exergetical analysis application reservoir surveillance efficiency heat engine production logging midstream oil & gas transportation module exergy destruction piping simulation inlet temperature exergetical efficiency different insulation...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, May 12–15, 2015
Paper Number: PSIG-1517
... One of the primary purposes of computerized pipeline simulation is to assist midstream companies to troubleshoot existing systems and design modifications or new systems. The tools available to the industry today enable companies to analyze and make decisions quicker, more reliably and efficiently...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, May 12–15, 2015
Paper Number: PSIG-1523
... compressors engines and turbines power variation adrian alvarado specific gravity pressure ratio psig 1523 suction flow rate upstream oil & gas compressor pipeline system molecular weight operating point case 1 composition efficiency gas composition flow rate variation...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, May 6–9, 2014
Paper Number: PSIG-1402
... as it does not address the actual conditions of the pipe, to include eccentricities, contaminants, joint interruptions, etc. To address these real-world impacts to flow, it is preferable to introduce a pipe efficiency term to the general flow equation, as shown below. 5.0 2 122 2 2 1 5.2...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, April 16–19, 2013
Paper Number: PSIG-1315
... no complete theory that explains this phenomenon, known as the Toms effect. In the course of the DRA flow in a pipeline the efficiency of the turbulence suppression decreases, most likely due to breakup of the long molecular chains into shorter ones. In this paper a mathematical model of viscous...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, April 16–19, 2013
Paper Number: PSIG-1320
... offsets and pipeline efficiency. upstream oil & gas inventory equation operator accuracy predictive simulation james munro online simulation software application benefit offshore pipeline modeling & simulation garry hanmer modelled peak eta simulation gassco piping...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, May 15–18, 2012
Paper Number: PSIG-1205
... (Figure 1). valve multiple compressor compressor application kurz discharge pressure upstream oil & gas characteristic compressors engines and turbines midstream oil & gas efficiency control concept psig 1205 gas turbine pipeline requirement suction pressure ratio...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, May 15–18, 2012
Paper Number: PSIG-1207
... ABSTRACT: Efficiency of a gas compressor package can be defined in several ways and it involves both the characteristic curves of compressor and driver engine and their match in speed and power across all operating range under different external conditions. A method of analysis is proposed and...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, May 11–14, 2010
Paper Number: PSIG-1008a
...); .0011493 (Metric units) D Pipe diameter (inches) (millimeters) e Pipe efficiency (dimensionless) f Darcy-Weisbach friction factor (dimensionless) g Gas specific gravity (dimensionless) L Pipe length (miles) (kilometers) Pa Average Pressure (PSIA) (Kilopascals) Pb Pressure base (PSIA) (Kilopascals) P1 Inlet...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, May 11–14, 2010
Paper Number: PSIG-1008
... ABSTRACT The use of an efficiency factor to make pipe equations match physical reality is not a new concept - it's been around as long as there have been flow equations. It fell into some disrepute and was deemed unnecessary by some when sound theoretical equations for pipe flow began to...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, May 12–15, 2009
Paper Number: PSIG-0912
... efficiency are also considered when calculating operational costs; moreover, some clues can be obtained after a systematic analysis of the working method in order to improve the pipeline operation in term of monetary savings. The success of these procedures should not mask the principal difficulty that the...
Proceedings Papers

Paper presented at the PSIG Annual Meeting, May 12–15, 2009
Paper Number: PSIG-09A4
... control, maximum speed, and power available have been satisfied, other information can be determined: – Compressor speed – Compressor efficiency, can the operating point be moved to a higher efficiency? – Surge margin – Discharge temperature – Gas turbine fuel consumption MODELING...

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