scholarly journals Comparative Operating Experience With Single-Shaft and Two-Shaft Gas-Turbine-Driven Centrifugal Compressors

1962 ◽  
Author(s):  
Heral Singleton ◽  
Tracy S. Park
Keyword(s):  
Natural Gas ◽  
Gas Turbine ◽  
Operating Experience ◽  
Gas Pipeline ◽  
Compressor Station ◽  
Prime Mover ◽  
Centrifugal Compressors ◽  
Excellent Opportunity ◽  
Natural Gas Pipeline ◽  
In Series

There has been much discussion as to how the single-shaft gas turbine compares with a two-shaft turbine as a prime mover for natural gas pipeline operations. Tennessee Gas Pipeline Company has a compressor station at Savannah, Tenn., with a single-shaft and two-shaft turbine driving centrifugal compressors in series. This provides an excellent opportunity for comparison of the two types of turbines.

scholarly journals The Influence of Rescheduled-Overhaul in determining the number of Gas turbine Usage in Natural Gas Pipeline Transportation Network

2020 ◽  
Vol 1 (1) ◽  
Keyword(s):  
Natural Gas ◽  
Gas Turbine ◽  
Simulation Software ◽  
Gas Pipeline ◽  
Baseline Condition ◽  
Single Type ◽  
Compressor Station ◽  
Natural Gas Pipeline ◽  
Baseline Case ◽  
Engine Life

Gas turbines are an integral part of the supply of natural gas in many parts of the world. In compressor stations, they are used for transporting gas from producing wells to consumers and across extensive networks of pipelines. This paper present how rescheduling of gas turbine overhaul from the baseline condition amid degradation influences the number of the gas turbine to be used in a compressor station without altering the original pipeline design for the desired amount of gas delivery. Eighteen compressor stations with gas turbine engines as the driver to the gas compressor have been investigated. The selected engines models were developed based on public domain specification, using an in-house engine performance simulation software: TURBOMATCH. Three seasons (rainy, dry and hot seasons) were considered in this paper based on the location of Trans-Saharan gas pipeline being investigated. Compressor and turbine were degraded (fouled) as a single type of degradation producing three performance scenarios (optimistic, medium and pessimistic). These scenarios define the levels of deterioration of the gas turbine in comparison with the clean conditions. The baseline case indicated that at a controlled TET, the number of GT used in each compressor station increases with increase in degradation (reduction in flow capacity and isentropic efficiency) which result to a variation in the number of engines per station. The result revealed that the implementation of rescheduled-overhaul on the engines reduces the number of Gas turbine usage at the same degraded and ambient condition of the baseline case. The further result indicated that the optimistic, medium and pessimistic scenarios that used 99, 106 and 120 number of engines for the 18 compression stations at baseline condition reduces to 91, 104 and 115 respectively when rescheduled overhaul was implemented for the same amount of gas to be delivered and at the same operating conditions. The proposed approach will enhance engine life-extension strategies that engine life-cycle managers, or natural gas pipeline investors may adopt to cost-effectively manage their engines while ensuring reliability and safety on the pipeline business.

Operating Experience of the First Solar® Taurus 70S Mechanical Drive Installation

1997 ◽  
Author(s):  
A. James Hoshizaki
Keyword(s):  
Gas Turbine ◽  
Performance Test ◽  
Operating Experience ◽  
Field Performance ◽  
Field Evaluation ◽  
Pipeline System ◽  
Test Results ◽  
Compressor Station ◽  
Test Program ◽  
Natural Gas Pipeline

In October 1995, NOVA Gas Transmission Ltd. (NGTL) commissioned the first mechanical drive application of Solar Turbines’ Taurus™ 70S gas turbine. The unit was installed as a part of a turbine/compressor package at a compressor station on NGTL’s natural gas pipeline system. As this first installation was a part of a development test program by Solar Turbines, field evaluation was conducted subsequent to the original commissioning and related testing. This paper presents NGTL’s experiences in commissioning, startup and operation. Field performance test results for the gas turbine are presented and focus on output power, thermal efficiency and exhaust emissions. Some of the findings and observations from the field evaluation tests performed by Solar are also discussed. In addition, a description of the facility in which the turbine/compressor package is installed is provided.

scholarly journals Anhydrous Cooling Mode Applied in External cooling Equipment of HVDC Converter

2018 ◽  
Vol 7 (3) ◽  
pp. 149
Author(s):  
Yu-liang WEN ◽  
Guang-wu WANG ◽  
Zhi-min LU ◽  
Jian-ye CHEN
Keyword(s):  
Natural Gas ◽  
Cooling System ◽  
Gas Pipeline ◽  
Cooling Mode ◽  
Long Distance ◽  
Natural Gas Pipeline ◽  
External Cooling ◽  
Operation Process ◽  
In Series ◽  
Air Cooler

Anhydrous Cooling Mode is that it consumes little water in the operation process. This paper made some investigates in the external cooling equipment which is currently applied in the HVDC converter substation. There are some anhydrous cooling modes in the HVDC converter substation. A case of anhydrous cooling mode which air cooler series with the water chiller applied in the long distance natural gas pipeline pressurization was introduced. It is recommended that the cooling system composed of air cooler in series with chilling water will be preferentially chosen as an anhydrous cooling mode applied in the HVDC converter external cooling equipment.

scholarly journals Design and Application of a Natural Gas Pipeline Optimization Program

1987 ◽  
Author(s):  
Jill Gilmour
Keyword(s):  
Natural Gas ◽  
Gas Turbine ◽  
Fuel Consumption ◽  
Gas Pipeline ◽  
Pipeline System ◽  
Total System ◽  
Optimization Program ◽  
Natural Gas Pipeline ◽  
Simulation Techniques ◽  
Transmission Pipeline

A software package which optimizes natural gas pipeline operation for minimum fuel consumption is in use on a commercial transmission pipeline. This Optimization Program has resulted in pipeline fuel savings in daily pipeline operation. In addition, the effect of a new compressor/turbine unit on the pipeline system as a whole can be accurately and easily quantified through use of the Optimization Program before the unit is even installed. The results from one turbine replacement study showed the total system fuel consumption and operating hours predicted for each unit were not directly related to a high turbine efficiency. This paper describes the simulation techniques used for the gas turbine and compressor modeling. The methodology behind the system-wide optimization is also provided, along with a detailed discussion of the program application to gas turbine and compressor replacement studies.

Internal Corrosion Monitoring System Selection for Cross Country Natural Gas Pipeline: A Case Study of SHPPL

2015 ◽  
Author(s):  
Sandeep Vyas
Keyword(s):  
Natural Gas ◽  
Monitoring System ◽  
Gas Pipeline ◽  
Operating Conditions ◽  
Corrosion Monitoring ◽  
Compressor Station ◽  
Internal Corrosion ◽  
Monitoring Techniques ◽  
Natural Gas Pipeline ◽  
Pipeline Project

Reliance Gas Pipelines Limited (RGPL) is currently implementing a gas pipeline project from Shahdol, Madhya Pradesh to Phulpur, Uttar Pradesh for evacuation of gas produced from Coal Bed Methane (CBM) blocks owned by Reliance Industries Ltd. This pipeline will be hooked up with GAIL’s HVJ Pipeline at Phulpur. Over all Pipeline system includes 312 km (approx.) long trunk line, and associated facilities such as Compressor Station at Shahdol, Intermediate Pigging facilities, Metering & Regulating facilities at Phulpur and 12 No. Mainline valve stations. Gas produced from CBM blocks will be dehydrated within Gas Gathering Station facilities of CBM Project located upstream of pipeline Compressor station at Shahdol. Gas received at pipeline battery limit is dry and non-corrosive gas in nature, Internal corrosion is not expected in normal course of operation, however internal corrosion of the natural gas pipeline can occur when the pipe wall is exposed to moisture and other contaminants either under process upset conditions or under particular operating conditions. Even though internal corrosion is not expected during normal course of operations, to take care of any eventuality, it is proposed to implement Internal Corrosion Monitoring (ICMS) system in this project. ICMS will provide an efficient and reliable means of continuous monitoring internal corrosion. Internal Corrosion Monitoring (ICMS) system is used as a part of overall integrity management framework; to achieve two objectives viz., verify the corrosive behaviour of gas and to verify the efficacy of applied preventive actions. Philosophy involved in evaluating a suitable CM technique would include : • Applicable corrosion damage mechanisms, anticipated corrosion rates and probable locations. • Suitable CM technique and location based on process condition, system corrosivity, water content, pigging facilities, available corrosion allowance, design life, maintenance etc., • Measurement frequency. Some of the Corrosion Monitoring techniques used for pipeline and of relevance are: • Weight-loss Corrosion Coupons (CC), • Electrical Resistance probes (ER), • Linear Polarization Resistance Probe (LPR) • Ultrasonic Thickness Measurement (UT) • Sampling Points (SP) This paper discusses the merits / demerits of these corrosion monitoring techniques, considerations for selecting a specific technique for the Shahdol – Phulpur Gas Pipeline Project and highlights the implementation of the internal corrosion monitoring system.

Design and Operation of a Gas Compressor Set

1970 ◽  
Author(s):  
J. W. Glessner
Keyword(s):  
Natural Gas ◽  
Gas Turbine ◽  
Operating Time ◽  
Gas Pipeline ◽  
Natural Gas Pipeline ◽  
Gas Compression ◽  
Industrial Gas Turbine

The use of a small industrial gas turbine with a matching gas compressor has produced a compressor set which has become a leader in the natural gas pipeline industry. This paper describes the design of one of these sets including details of the gas compressor. While accumulating nearly 4,000,000 hr operating time, these sets have proved to be very flexible in operation. They are used in five continents over an extreme range of environments and gas compression services. Some of these installations are described in detail.

scholarly journals Discussion on operation flexibility of Zhonggui natural gas pipeline

2021 ◽  
Vol 300 ◽  
pp. 01015
Author(s):  
Ying Song ◽  
Liang Feng ◽  
Wenchen Cao
Keyword(s):  
Natural Gas ◽  
Working Conditions ◽  
Transmission Function ◽  
Gas Pipeline ◽  
Compressor Station ◽  
Operation Condition ◽  
Natural Gas Pipeline ◽  
Specific Implementation ◽  
Operation Flexibility ◽  
Tie Line

Zhongwei station of West to east natural gas pipeline is connected to the north of Zhonggui line, and Guiyang station of China-Myanmar natural gas pipeline is connected to the south, which has important strategic significance in Southwest China. At present, the tie line mainly carries out gas transmission from Zhongwei to Guiyang. Only some pipeline sections and offload stations have reverse transmission function, while all compressor stations have no reverse transmission and pressurization function. In order to evaluate the flexibility of the operation of the Zhonggui line and give some suggestions for the preliminary reconstruction, this paper uses the SPS software to establish the pipeline model and simulate the specific working conditions, focusing on the two working conditions of the intermediate station injection forward transmission and the whole line reverse transmission. Through the simulation, we can get the following conclusions: 1. When the intermediate station injects forward gas transmission, which compressor station, gas transmission range and joint operation condition with China-Myanmar line need to be started for Zhonggui line; 2. When the whole tie line is reversed, it is necessary to change the location of the compressor station with the function of reverse transmission and pressurization. Through this study, we can give some reference and evaluation opinions on the lack of flexibility of the current tie line, and also give some reference opinions on the specific implementation of the improvement of the tie line operation flexibility in the future.

scholarly journals Hydrogen Fueled Gas Turbines

2019 ◽  
Vol 141 (03) ◽  
pp. 52-54 ◽  
Author(s):  
Lee S. Langston
Keyword(s):  
Energy Storage ◽  
Natural Gas ◽  
Greenhouse Gas ◽  
Gas Turbine ◽  
Gas Turbines ◽  
Power Plants ◽  
Electrical Energy ◽  
Gas Production ◽  
Gas Pipeline ◽  
Natural Gas Pipeline

Hydrogen, reacting with oxygen, is a very energetic, non-polluting fuel. Can it be used as a fuel for gas turbines? Two successful and significant examples of its use are reviewed. Surplus renewable electrical energy from solar and wind could be used for electrolysis of water to produce hydrogen to power gas turbine power plants. Serving as a means of energy storage, the hydrogen could be kept in caverns. It could also be added directly to natural gas pipeline systems serving gas turbine power plants, thus reducing greenhouse gas production.

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