scholarly journals Local Green Power Supply Plants Based on Alcohol Regenerative Gas Turbines: Economic and Environmental Aspects

Energies ◽  
2020 ◽  
Vol 13 (9) ◽  
pp. 2156 ◽  
Author(s):  
Oleksandr Cherednichenko ◽  
Valerii Havrysh ◽  
Vyacheslav Shebanin ◽  
Antonina Kalinichenko ◽  
Grzegorz Mentel ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Gas Turbine ◽  
Carbon Dioxide Emissions ◽  
Gas Turbines ◽  
Alternative Fuels ◽  
Fossil Fuels ◽  
Waste Heat ◽  
Turbine Engine ◽  
Engine Efficiency ◽  
Conversion Performance

Growing economies need green and renewable energy. Their financial development can reduce energy consumption (through energy-efficient technologies) and replace fossil fuels with renewable ones. Gas turbine engines are widely used in transport and industry. To improve their economic attractiveness and to reduce harmful emissions, including greenhouse gases, alternative fuels and waste heat recovery technologies can be used. A promising direction is the use of alcohol and thermo-chemical recuperation. The purpose of this study is to estimate the economic efficiency and carbon dioxide emissions of an alcohol-fueled regenerative gas turbine engine with thermo-chemical recuperation. The carbon dioxide emissions have been determined using engine efficiency, fuel properties, as well as life cycle analysis. The engine efficiency was maximized by varying the water/alcohol ratio. To evaluate steam fuel reforming for a certain engine, a conversion performance factor has been suggested. At the optimal water/methanol ratio of 3.075 this technology can increase efficiency by 4% and reduce tank-to-wake emission by 80%. In the last 6 months of 2019, methanol prices were promising for power and cogeneration plants in remote locations. The policy recommendation is that local authorities should pay attention to alcohol fuel and advanced turbines to curb the adverse effects of burning petroleum fuel on economic growth and the environment.

scholarly journals Chemically Recuperated Gas Turbines for Offshore Platform: Energy and Environmental Performance

2021 ◽  
Vol 13 (22) ◽  
pp. 12566
Author(s):  
Oleg Bazaluk ◽  
Valerii Havrysh ◽  
Oleksandr Cherednichenko ◽  
Vitalii Nitsenko
Keyword(s):  
Carbon Dioxide ◽  
Gas Turbine ◽  
Steam Reforming ◽  
Carbon Dioxide Emissions ◽  
Gas Turbines ◽  
Offshore Platforms ◽  
Turbine Engine ◽  
Wobbe Index ◽  
Gas Turbine Cycle ◽  
The Impact

Currently, offshore areas have become the hotspot of global gas and oil production. They have significant reserves and production potential. Offshore platforms are energy-intensive facilities. Most of them are equipped with gas turbine engines. Many technologies are used to improve their thermal efficiency. Thermochemical recuperation is investigated in this paper. Much previous research has been restricted to analyzing of the thermodynamic potential of the chemically recuperated gas turbine cycle. However, little work has discussed the operation issues of this cycle. The analysis of actual fuel gases for the steam reforming process taking into account the actual load of gas turbines, the impact of steam reforming on the Wobbe index, and the impact of a steam-fuel reforming process on the carbon dioxide emissions is the novelty of this study. The obtained simulation results showed that gas turbine engine efficiency improved by 8.1 to 9.35% at 100% load, and carbon dioxide emissions decreased by 10% compared to a conventional cycle. A decrease in load leads to a deterioration in the energy and environmental efficiency of chemically recuperated gas turbines.

Gas Turbine Power Systems for Military Tracked Vehicles

1983 ◽  
Author(s):  
Geoffrey D. Woodhouse
Keyword(s):  
Power Systems ◽  
Gas Turbine ◽  
Gas Turbines ◽  
Waste Heat ◽  
High Reliability ◽  
Turbine Engines ◽  
Tracked Vehicles ◽  
Turbine Engine ◽  
Response Characteristics ◽  
Air Inlet

The gas turbine engine has been examined as a power plant for military tracked vehicles for over 30 years. Advocates have stressed the potentially high power density and high reliability as factors in favor of the turbine. Several turbine engines have been evaluated experimentally in military tracked vehicles resulting in a better understanding of such aspects as response characteristics and air inlet filtration requirements. Moreover, although the small volume and light weight of aircraft derivative gas turbines have certain virtues, it generally has been concluded that some form of waste heat recuperation is essential to achieve an acceptable level of fuel consumption, despite the increased weight and volume incurred. The selection of the AVCO Lycoming AGT1500 recuperated gas turbine as the power unit for the U.S. Army new M1 “Abrams” main battle tank was a major milestone in the evolution of gas turbine engines for tank propulsion.

Development and Experimental Investigation of a Tubular Combustor for Pyrolysis Oil Burning

2014 ◽  
Author(s):  
Martin Beran ◽  
Lars-Uno Axelsson
Keyword(s):  
Experimental Investigation ◽  
Gas Turbine ◽  
Droplet Size ◽  
Gas Turbines ◽  
Alternative Fuels ◽  
Fossil Fuels ◽  
Heat Content ◽  
Pyrolysis Oil ◽  
Load Range ◽  
Air Blast

The growing demand for more economical and environmentally friendly power generation forces the industry to search for fuels that can replace the conventional fossil fuels. This has led to significant developments in the production of alternative fuels during the last years, which have made them a reliable and relatively efficient source of energy. One example of these alternative fuels is the pyrolysis oil. However, higher viscosity, lower heat content, limited chemical stability and its ability to create sediment make pyrolysis oil challenging for gas turbines. The OPRA OP16 gas turbine is an all radial single-shaft gas turbine rated at 1.9 MW. The all radial design, together with the lack of intricate cooling geometries in the hot section, makes this gas turbine suitable for operation on these fuels. This paper presents an experimental investigation of pyrolysis oil combustion in a tubular combustor developed especially for low-calorific fuels. The experiments have been performed in an atmospheric combustion test rig and the results have been compared to the results obtained from ethanol and diesel combustion. It was found that it was possible to burn pure pyrolysis oil in the load range between 70 to 100% with a combustion efficiency exceeding 99% and without creation of sediments on the combustor inner wall. It was found that the NOx emissions were similar for pyrolysis oil and diesel, whereas the CO emissions were twice as high for pyrolysis oil. A comparison between the air blast nozzle and the pressure nozzle was performed. The air blast nozzle was found to be more suitable due to its better performance over a wider operating range and that it is more resistant to erosion and abrasion. It was found that the maximum allowed droplet size of the pyrolysis oil spray should be about 50–70% of the droplet size for diesel fuel.

The Challenges Facing the Utility Gas Turbine

2007 ◽  
Author(s):  
Hans Juergen Kiesow ◽  
Gerard McQuiggan
Keyword(s):  
Carbon Dioxide ◽  
Gas Turbine ◽  
Gas Turbines ◽  
Alternative Fuels ◽  
Oil And Gas ◽  
Historical Background ◽  
Future Price ◽  
Electricity Supply ◽  
Market Place ◽  
Capital Costs

The object of this paper will be to examine the market place and some of the consequential technical challenges facing large frame utility gas turbines (greater than 100MW’s) over the next decade. The significant and rapid increase in the price of oil and gas and restrictions in fuel and electricity supply are posing many obstacles to the successful application of the gas turbine in the electricity supply market in both North America and worldwide. The paper will examine the historical background leading up to these changes and will discuss the predicted future price levels for gas turbine fuels. Alternative fuels will also be discussed. The paper will also discuss the challenges facing the large frame gas turbine with respect to the technical improvements that will be required to lower emissions and capital costs, while improving efficiency and potentially capturing and sequestering carbon dioxide.

scholarly journals Alternative Fuel Vehicles Today and Their Impacts in the Transportation industry

2021 ◽  
Author(s):  
Abdul M. Miraz
Keyword(s):  
Carbon Dioxide ◽  
Carbon Dioxide Emissions ◽  
Alternative Fuels ◽  
Fossil Fuels ◽  
Alternative Fuel ◽  
Transportation Industry ◽  
Alternative Fuel Vehicles ◽  
Pros And Cons ◽  
Fuel Costs

Canadians are concerned about their environment around them, global warming and also related issues regarding this aspect. But on the other hand many donʼt realize that the cars and trucks that they drive are a major source of these problems, and that there are alternative choices of transportation that they can make out there. Majority of us drive or ride in vehicles that are powered by petroleum based fossil fuels i.e. gasoline or diesel. But some people, however, are choosing to drive vehicles that run on smaller amounts of fuel, and/or partially or completely on fuels other than diesel or gasoline. These types of advanced and alternative fuel vehicles (AFVs) help reduce our dependence on foreign oil imports, save us money on fuel costs, and improve our air quality. Alternative fuels nowadays have received some attention as a potential option to curtail the carbon dioxide emissions form vehicles. My project report discusses the feasibility and desirability of the use of alternative fuels as a strategy to mitigate automotive carbon dioxide emissions. For example what types of impact are we to expect in the transportation industry due to alternative fuel vehicles and are they economically feasible to consumers? And what type of long-term benefits do they offer? And if a person is willing to know more about these alternative fuel vehicles that are out in the market, where should they go for more information? It is a type of a summary of all the aspects about alternative fuel vehicles and their pros and cons.

Development and Experimental Investigation of a Tubular Combustor for Pyrolysis Oil Burning

2014 ◽  
Vol 137 (3) ◽  
Author(s):  
Martin Beran ◽  
Lars-Uno Axelsson
Keyword(s):  
Experimental Investigation ◽  
Gas Turbine ◽  
Droplet Size ◽  
Gas Turbines ◽  
Alternative Fuels ◽  
Fossil Fuels ◽  
Heat Content ◽  
Pyrolysis Oil ◽  
Load Range ◽  
Air Blast

The growing demand for more economical and environmentally friendly power generation forces the industry to search for fuels that can replace the conventional fossil fuels. This has led to significant developments in the production of alternative fuels during the last years, which have made them a reliable and relatively efficient source of energy. One example of these alternative fuels is the pyrolysis oil. However, higher viscosity, lower heat content, limited chemical stability, and its ability to create sediment make pyrolysis oil challenging for gas turbines. The OPRA OP16 gas turbine is an all radial single-shaft gas turbine rated at 1.9 MW. The all radial design, together with the lack of intricate cooling geometries in the hot section, makes this gas turbine suitable for operation on these fuels. This paper presents an experimental investigation of pyrolysis oil combustion in a tubular combustor developed, especially for low-calorific fuels. The experiments have been performed in an atmospheric combustion test rig, and the results have been compared to the results obtained from ethanol and diesel combustion. It was found that it was possible to burn pure pyrolysis oil in the load range between 70% and 100% with a combustion efficiency exceeding 99% and without creation of sediments on the combustor inner wall. It was found that the NOx emissions were similar for pyrolysis oil and diesel, whereas the CO emissions were twice as high for pyrolysis oil. A comparison between the air blast nozzle and the pressure nozzle was performed. The air blast nozzle was found to be more suitable due to its better performance over a wider operating range and that it is more resistant to erosion and abrasion. It was found that the maximum allowed droplet size of the pyrolysis oil spray should be about 50–70% of the droplet size for diesel fuel.

scholarly journals The Decarboniztion of Gas Turbine Power

2020 ◽  
Vol 142 (06) ◽  
pp. 52-53
Author(s):  
Lee S. Langston
Keyword(s):  
Carbon Dioxide ◽  
Energy Conversion ◽  
Gas Turbine ◽  
Carbon Dioxide Emissions ◽  
Gas Turbines ◽  
Sustainable Energy ◽  
Energy Conversion Systems

Abstract The gas turbine industry is facing the prospects of meeting proposed national and international targets for reducing carbon dioxide emissions and for the promotion of sustainable energy. The evolving role of gas turbines to decarbonize the world’s energy conversion systems has been the theme of articles in the Global Gas Turbine News (GGTN) in the last three issues, of September 2019, December 2019 and March 2020. The articles are reviewed here

scholarly journals Alternative Fuel Vehicles Today and Their Impacts in the Transportation industry

2021 ◽  
Author(s):  
Abdul M. Miraz
Keyword(s):  
Carbon Dioxide ◽  
Carbon Dioxide Emissions ◽  
Alternative Fuels ◽  
Fossil Fuels ◽  
Alternative Fuel ◽  
Transportation Industry ◽  
Alternative Fuel Vehicles ◽  
Pros And Cons ◽  
Fuel Costs

Canadians are concerned about their environment around them, global warming and also related issues regarding this aspect. But on the other hand many donʼt realize that the cars and trucks that they drive are a major source of these problems, and that there are alternative choices of transportation that they can make out there. Majority of us drive or ride in vehicles that are powered by petroleum based fossil fuels i.e. gasoline or diesel. But some people, however, are choosing to drive vehicles that run on smaller amounts of fuel, and/or partially or completely on fuels other than diesel or gasoline. These types of advanced and alternative fuel vehicles (AFVs) help reduce our dependence on foreign oil imports, save us money on fuel costs, and improve our air quality. Alternative fuels nowadays have received some attention as a potential option to curtail the carbon dioxide emissions form vehicles. My project report discusses the feasibility and desirability of the use of alternative fuels as a strategy to mitigate automotive carbon dioxide emissions. For example what types of impact are we to expect in the transportation industry due to alternative fuel vehicles and are they economically feasible to consumers? And what type of long-term benefits do they offer? And if a person is willing to know more about these alternative fuel vehicles that are out in the market, where should they go for more information? It is a type of a summary of all the aspects about alternative fuel vehicles and their pros and cons.

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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