Application of Cogeneration to the Heating of Natural Gas in Pipeline

2002 ◽  
Author(s):  
Alberto Fushimi ◽  
Mari´a Isabel Sosa ◽  
Guillermo Pitrelli ◽  
Vanesa I. Vasquez ◽  
Luis Vido ◽  
...  
Keyword(s):  
Natural Gas ◽  
Thermoelectric Power ◽  
Gas Turbines ◽  
Preliminary Analysis ◽  
Waste Heat ◽  
Power Station ◽  
Preliminary Calculation ◽  
Heating Systems ◽  
Combustion Gases ◽  
Gas Heating

In the Southern Region of our Country (Argentina), pipeline natural gas is heated up to suitable temperatures by combustion of natural gas in indirect type heating systems. In one of the points in which such heating is necessary, the pipeline that transports about 14 million standard cubic meters per day of natural gas at 45 bar of pressure and whose temperature is wanted to rise from −2°C to 30°C, is placed about 500 m away from of a regional thermoelectric power station. It has 3 7 MW gas turbines, exhausting 25.8 kg/s of combustion gases at 510°C each. A preliminary calculation showed that the waste heat of one of them can closely supply the necessary duty for gas heating. In this work, a preliminary analysis and economics of the system are described.

Low Emissions, Renewable, Dispatchable Power Generation Using Ethanol/Natural Gas Blends

2014 ◽  
Author(s):  
Maclain M. Holton ◽  
Michael S. Klassen ◽  
Leo D. Eskin ◽  
Richard J. Joklik ◽  
Richard J. Roby
Keyword(s):  
Power Generation ◽  
Heat Exchanger ◽  
Natural Gas ◽  
Power Output ◽  
Gas Turbines ◽  
Waste Heat ◽  
Full Range ◽  
Liquid Fuels ◽  
Power Sources ◽  
Pollution Levels

Nearly all states now have renewable portfolio standards (RPS) requiring electricity suppliers to produce a certain fraction of their electricity using renewable sources. Many renewable energy technologies have been developed to contribute to RPS requirements, but these technologies lack the advantage of being a dispatchable source which would give a grid operator the ability to quickly augment power output on demand. Gas turbines burning biofuels can meet the need of being dispatchable while using renewable fuels. However, traditional combustion of liquid fuels would not meet the pollution levels of modern dry, low emission (DLE) gas turbines burning natural gas without extensive back-end clean-up. A Lean, Premixed, Prevaporized (LPP) combustion technology has been developed to vaporize liquid ethanol and blend it with natural gas creating a mixture which can be burned in practically any combustion device in place of ordinary natural gas. The LPP technology delivers a clean-burning gas which is able to fuel a gas turbine engine with no alterations made to the combustor hardware. Further, the fraction of ethanol blended in the LPP gas can be quickly modulated to maintain the supplier’s overall renewable quotient to balance fluctuations in power output of less reliable renewable power sources such as wind and solar. The LPP technology has successfully demonstrated over 1,000 hours of dispatchable power generation on a 30 kW Capstone C30 microturbine using vaporized liquid fuels. The full range of fuel mixtures ranging from 100% methane with no ethanol addition to 100% ethanol with no methane addition have been burned in the demonstration engine. Emissions from ethanol/natural gas mixtures have been comparable to baseline natural gas emissions of 3 ppm NOx and 30 ppm CO. Waste heat from the combustor exhaust is recovered in an indirect heat exchanger and is used to vaporize the ethanol as it is blended with natural gas. This design allows for startup on natural gas and blending of vaporized ethanol once the heat exchanger has reached its operating temperature.

Co-Utilization of Biomass and Natural Gas in an Existing Powerplant Through Primary Steam Reforming of Natural Gas

2006 ◽  
Author(s):  
Frank Delattin ◽  
Svend Bram ◽  
Jacques De Ruyck
Keyword(s):  
Power Plant ◽  
Natural Gas ◽  
Gas Turbines ◽  
Waste Heat ◽  
Internal Combustion ◽  
Combined Cycle ◽  
Biomass Energy ◽  
Small Scale ◽  
Combined Cycles ◽  
External Combustion

Power production from biomass can occur through external combustion (e.g. steam cycles, Organic Rankine Cycles, Stirling engines), or internal combustion after gasification or pyrolysis (e.g. gas engines, IGCC). External combustion has the disadvantage of delivering limited conversion efficiencies (max 35%). Internal combustion has the potential of high efficiencies, but it always needs a severe and mostly problematic gas cleaning. The present article proposes an alternative route where advantages of external firing are combined with potential high efficiency of combined cycles through co-utilization of natural gas and biomass. Biomass is burned to provide heat for partial reforming of the natural gas feed. In this way, biomass energy is converted into chemical energy contained in the produced syngas. Waste heat from the reformer and from the biomass combustor is recovered through a waste heat recovery system. It has been shown in previous papers that in this way biomass can replace up to 5% of the natural gas in steam injected gas turbines and combined cycles, whilst maintaining high efficiencies [1,2]. The present paper proposes the application of this technique as retrofit of an existing combined cycle power plant (Drogenbos, Belgium) where 1% of the natural gas input would be replaced by wood pellets. This represents an installed biomass capacity of 5 MWth from biomass which could serve as a small scale demonstration. The existing plant cycle is first simulated and validated. The simulated cycle is next adapted to partially run on biomass and a retrofit power plant cycle layout is proposed.

scholarly journals Thermoelectric Power Generation from Waste Heat of Natural Gas Water Heater

2017 ◽  
Vol 110 ◽  
pp. 32-37 ◽  
Author(s):  
Lai Chet Ding ◽  
Nathan Meyerheinrich ◽  
Lippong Tan ◽  
Kawtar Rahaoui ◽  
Ravi Jain ◽  
...  
Keyword(s):  
Power Generation ◽  
Natural Gas ◽  
Thermoelectric Power ◽  
Waste Heat ◽  
Water Heater ◽  
Thermoelectric Power Generation

Gas-Turbine-Powered Generating and Central Heating Plants

1962 ◽  
Author(s):  
R. G. Dennys
Keyword(s):  
Natural Gas ◽  
Electric Power ◽  
Gas Turbine ◽  
Diesel Fuel ◽  
Gas Turbines ◽  
Liquid Fuel ◽  
Waste Heat ◽  
Military Installations ◽  
Central Heating ◽  
Primary Power

This paper describes the first completely gas-turbine powered stations used for supplying primary power for military installations. The stations, with one exception, are equipped with waste-heat boilers which supply steam for use in all heating including barracks. Gas turbines were specified as the most economical means of satisfying the electric power and central heating requirements. The stations are completely self-contained with no connection to any commercial power. The gas turbines, with one exception, use natural gas as the primary fuel and No. 2 diesel fuel as standby fuel. Changeover to liquid fuel is automatic. Change back to gas is manual.

scholarly journals Mechanical Drive Combined-Cycle Gas and Steam Turbines for Northern Gas Products

1967 ◽  
Author(s):  
B. F. Wobker ◽  
C. E. Knight
Keyword(s):  
Natural Gas ◽  
Gas Turbines ◽  
Waste Heat ◽  
Operating Experience ◽  
Combined Cycle ◽  
Steam Turbines ◽  
Extraction Plant ◽  
Combined Cycle Plant ◽  
And Performance ◽  
Base Load

Gas turbines were selected for base-load operation because the waste heat could be utilized in this natural gas liquid extraction plant. It is the object of this paper to present the operation experience of a gas turbine driving a propane compressor used for base-load operation in a combined cycle. The turbines drive centrifugal refrigeration compressors for the extraction of propane, heavier liquid components, and helium from natural gas. As this is one of the largest plants of its type, the operating experience and performance are outlined. The selection, method of operation, reliability, and maintenance costs of this combined-cycle plant are discussed. It is not practical to generalize on selection of combining prime movers and major machinery for an extraction plant or a mechanical drive combined cycle. Each case must be individually evaluated and is dependent upon its location, application, and economic factors. The conclusion describes the reliability and availability of the combined cycle as borne out by approximately four years of operation.

First Assessment of Biogas Co-Firing on the GE MS9001FA Gas Turbine Using CFD

2003 ◽  
Author(s):  
J. A. Lycklama a` Nijeholt ◽  
E. M. J. Komen ◽  
A. J. L. Verhage ◽  
M. C. van Beek
Keyword(s):  
Natural Gas ◽  
Gas Turbine ◽  
Gas Turbines ◽  
Combustion Process ◽  
Geometrical Model ◽  
Electricity Production ◽  
Power Station ◽  
Complete Combustion ◽  
Air Mixing ◽  
The Impact

Replacement of fossil fuel by biomass-derived fuel is currently under study in the Netherlands within the context of CO2 -neutral electricity production. In view of this, co-firing biogas in the natural-gas fired Eems gas turbine power plant is being considered. This would entail extension of the power station with a biomass gasification plant for the production of biogas. The main unit of the Electrabel Eemshaven Power Station consists of five GE MS9001FA-gas turbines. A target is to replace up to 13% of natural gas consumption by biogas. The objective of the current project was to determine the impact of co-firing on the flame behavior. Therefore various options for biogas co-firing using combinations of pilot and premix burners have been studied. Computational Fluid Dynamics (CFD) simulations of the combustion process using a geometrical model of the complete combustion chamber have been performed. The flow conditions at the premix burner outlets were determined with a separate, detailed CFD model of the burner, simulating the fuel-air mixing with the required high accuracy. Advanced combustion modeling with help of the detailed GRI 3.0-reaction mechanism was used, as well as simpler models for fast chemical kinetics. A method was devised for calibrating the applied combustion models. Various firing strategies involving the premix and pilot burners were analyzed. Safe ranges for biogas co-firing have been determined in this first feasibility study.

Modern opportunities for preparation of ultra-pure water for feeding high-performance boiler plants

2020 ◽  
pp. 74-84
Author(s):  
A.A. Filimonova ◽  
◽  
N.D. Chichirova ◽  
A.A. Chichirov ◽  
A.A. Batalova ◽  
...  
Keyword(s):  
Gas Turbine ◽  
Gas Turbines ◽  
High Performance ◽  
Waste Heat ◽  
Pure Water ◽  
Combined Cycle ◽  
Feed Water ◽  
Operational Characteristics ◽  
Treatment Equipment

The article provides an overview of modern high-performance combined-cycle plants and gas turbine plants with waste heat boilers. The forecast for the introduction of gas turbine equipment at TPPs in the world and in Russia is presented. The classification of gas turbines according to the degree of energy efficiency and operational characteristics is given. Waste heat boilers are characterized in terms of design and associated performance and efficiency. To achieve high operating parameters of gas turbine and boiler equipment, it is necessary to use, among other things, modern water treatment equipment. The article discusses modern effective technologies, the leading place among which is occupied by membrane, and especially baromembrane methods of preparing feed water-waste heat boilers. At the same time, the ion exchange technology remains one of the most demanded at TPPs in the Russian Federation.

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