Fuel quality impact analysis for practical implementation of corn cob gasification gas in conventional gas turbine power plants

Significance 

Currently, slightly over 80% of the total global electricity output is generated from fossil fuels. Following the formulation and implementation of stringent laws, coupled with the rising global awareness on the effects of excessive CO2 emission, this is subject to decrease. In line with this paradigm, the development of alternative renewable fuel sources has been the subject of recent research work. In one approach, biomass has been used to generate clean energy. This has set precedence for its integration in other systems. Nonetheless, in systems such as gas turbine facilities, the practical implementation of alternative fuels such a biomass is still challenging. Such an endeavor has been met by numerous technical, economical and legal obstacles hence it is still subject to profound research.

Attempts to resolve the aforementioned challenges have yielded promising results. In fact, it has been shown that the symbiosis of existing gas turbine technologies and new ways of waste biomass energy utilization through firing or co – firing of biomass gasification gas, could help overcome the said challenges. However, no published work has attempted to utilize corn cob gasification gas as an additive of methane in a gas turbine.

In this view, researchers Dr. Milana Guteša Božo head of R&D at Termoinžinjering d.o.o, in collaboration with Dr. Agustin Valera-Medina, Professor Nick Syred and Dr. Philip J. Bowen at Cardiff School of Engineering established the optimized parameters for the implementation of corn cob gasification gas as additive of methane for gas turbine power applications. This way, they sought to provide valuable information regarding the use of the resource, thus ultimately ensuring higher environmental and economic benefits would be achieved by future users of their concept. Their work is currently published in the research journal, Biomass and Bioenergy.

Generally, they analyzed the practical implementation of corn cob gasification gas with CO2 recirculation in gas turbines. Their method entailed of two scenarios each with five different cases, where; in the first scenario fuel mass flows were kept constant regardless of the fuel quality change consequence of the corn cob gas share, while as in the second scenario fuel volume flows were assumed constant. All in all, fuel quality impacts on a gas turbine power plant performance were analyzed using a numerical model of a physical cycle that enabled the simulation of a 3.9 MW experimentally correlated gas turbine.

The authors reported that the reaction modelling showed a decrease of the adiabatic temperature of corn cob gas share in both scenarios. Moreover, the oxygen and nitrogen share in the combustion products was seen to increase, while water vapor and carbon dioxide decreased with an increase of the corn cob gasification gas share.

In summary, their study presented a fuel quality impact analysis for corn cob gasification gas. The analyzed gas was described as a low calorific gas, without potential of being implemented in gas turbine plant by itself. Overall, results showed that the utilization of corn cob gasification gas is possible through co-firing with natural gas with acceptable values without modification of the fuel system or gas turbine.

Fuel quality impact analysis for practical implementation of corn cob gasification gas in conventional gas turbine power plants - Advances in Engineering

About the author

Dr Agustin Valera – Medina

Cardiff University, School of Engineering
Cardiff, United Kingdom

Doctor Agustin Valera – Medina is a Senior Lecturer and a leading researcher at Cardiff University, major fields Combustion Dynamics and Thermofluids. Dr Agustin Valera – Medina holds his PhD on the topic of Coherent structures and their effects on processes occurring in swirl combustors at Cardiff University, graduating in 33 months.

He is a Chartered Engineer (MIMechE) and a member of the National System of Researchers (CONACYT), the recognized association for research in Mexico.

He was appointed a Lecturer at Cardiff University in 2012. His research is based on the topics of fuels, hydrodynamics, flame stabilization, injection, heat transfer and combustion technologies. Other interests have also led him to start different fundamental research programs in topics such as bio-mimetic engineering, pulse detonation, shale gas and ammonia as an energy carrier.

He continues to develop new systems with potential customers in collaboration with many international universities (Imperial College, UCL, Edinburgh, Sheffield, Trinity College Dublin, Singapore, Shangai Jiao Tong, Lund University, UNAM, KU Leuven, etc.).

He has worked in 21 industrial/scientific projects with GE, PEMEX, Rolls-Royce, Siemens, Alstom, RICARDO and EON. He is the academic leader from Cardiff University of the project “Green Decoupled Energy” intended to demonstrate the production, distribution and final use of green ammonia in collaboration with Siemens, Oxford University and STFC.

He has a total of 123 papers, out of which 62 are in international journals. He has been awarded several international conference awards including the American Institute of Astronautics and Aeronautics (AIAA) ‘Best Paper in Terrestrial Technologies’, award for the 2010 and 2013 AIAA conferences as well as the 2018 award for ‘Best Conference Paper’ SDEWES SEE, Serbia. He has been recipient of the prestigious award for “Business Innovation” 2017 and 2019 in South Wales, UK.

About the author

Dr. Milana Guteša Božo

Termoinžinjering d.o.o. Serbia, Department for Research and Development
Novi Sad, Serbia

Dr Milana Guteša Božo is a Head of Department for Research and Development at Termoinžinjering d.o.o., Serbia. Dr Milana Guteša Božo holds PhD in numerical modelling of the flow behavior, heat transfer and energy transformation in the gas turbine plants under design and off-design regimes for gases with various calorific values, in Mechanical Engineering at University of Novi Sad, Serbia.

Her second PhD thesis has been approved in field of gas turbine fuel quality impact on the environment.

Her research is in the areas of modelling and simulation of design and off – design regimes in gas and steam turbine plants, combustion of gases with various calorific values, alternative fuels, pollution, fuel quality impact on gas turbine regimes, and in the areas of sustainable energy, environmental protection and climate change.

She has worked as assistant professor at Faculty of technical sciences, University of Novi Sad Serbia, major subject thermal turbomachinery, and Faculty for Environmental Protection, University Educons, Serbia.

She has over 30 publications in Scientific Journals, Books and International Conferences Proceedings to her credit.

Dr Milana Guteša Božo is a Chartered Engineer (Serbian Chamber of Engineers) and a member of the Thermal Engineers Society of Serbia. She is also co-author of numerous design documents in the field of energy and environmental engineering.

She has been awarded several international conference awards including the 2018 award for ‘Best Conference Paper’ SDEWES SEE, Serbia.

Reference

Milana Guteša Božo, Agustin Valera-Medina, Nick Syred, Philip J. Bowen. Fuel quality impact analysis for practical implementation of corn cob gasification gas in conventional gas turbine power plants. Biomass and Bioenergy, volume 122 (2019) page 221–230.

Go To Biomass and Bioenergy

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