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Liquid biofuels production and emissions performance in gas turbines: a review

Liquid biofuels production and emissions performance in gas turbines: a review
Liquid biofuels production and emissions performance in gas turbines: a review

The increasing demand for clean and sustainable energy sources provides the impetus for the development of alternative fuels. Recent development of fuel-flexible gas turbine technologies enables the use of alternative non-fossil fuels that could play key roles in contributing to the global efforts in meeting emissions targets. This review highlights the current state-of-the-art production and properties of alternative fuels such as straight vegetable oil (SVO), biodiesel, bioethanol, bio-oil, hydrogenated vegetable oil (HVO) and Fischer-Tropsch (FT) fuel. This is followed by the evaluation of combustion performances in gas turbines. All of the alternative liquid biofuels have shown their potentials in reducing regulated emissions such as NOx, CO and soot under favourable operating conditions. Both HVO and FT fuels show comparable performance as that of jet fuel and can be used in aviation gas turbines, although the present day high production cost restricts the large-scale adoption, limiting its utility. They also have considerably higher cetane number than the rest, making it easier for the fuel to ignite. As for stationary power generation gas turbines that need not carry payloads, the other four alternative biofuels of biodiesel, bioethanol, bio-oil and SVO are possible candidates despite the physics-chemical properties variations when compared to fossil fuels. Amongst them, the use of SVO and bio-oil in gas turbines would require the parallel development of fuel supply systems and atomisation technologies to improve the combustion of the fuels. In all, the alternative liquid fuels reviewed provides realistic opportunities for cleaner and more sustainable operation of aviation and power generation gas turbines. Profound understanding on the fundamental combustion characteristics of the fuels are essential to expedite their mass adoption in gas turbine applications.

Alternative fuel, Biodiesel, Biofuels, FT fuel, Gas turbine, Jet fuel
0196-8904
640-658
Chiong, Meng Choung
f6e7653c-17fa-4f7c-95e8-e4b46add0cf1
Chong, Cheng Tung
94e5dbc6-2c37-4d23-b200-dd1080174deb
Ng, Jo Han
4c9c51bd-1cfc-46c0-b519-23b77566fe50
Lam, Su Shiung
6b37a05e-d996-499c-8847-06a8fea295a7
Tran, Manh Vu
0a5a5a74-9c01-47bd-8f71-19da7460246e
Chong, William Woei Fong
bb7bc2ce-1866-4fb0-8b82-5a6d2381b67a
Mohd Jaafar, Mohammad Nazri
06cca709-1f75-4ded-b2bb-94e90114c594
Valera-Medina, Agustin
70389790-bf77-4d45-ae7e-0f848a057c13
Chiong, Meng Choung
f6e7653c-17fa-4f7c-95e8-e4b46add0cf1
Chong, Cheng Tung
94e5dbc6-2c37-4d23-b200-dd1080174deb
Ng, Jo Han
4c9c51bd-1cfc-46c0-b519-23b77566fe50
Lam, Su Shiung
6b37a05e-d996-499c-8847-06a8fea295a7
Tran, Manh Vu
0a5a5a74-9c01-47bd-8f71-19da7460246e
Chong, William Woei Fong
bb7bc2ce-1866-4fb0-8b82-5a6d2381b67a
Mohd Jaafar, Mohammad Nazri
06cca709-1f75-4ded-b2bb-94e90114c594
Valera-Medina, Agustin
70389790-bf77-4d45-ae7e-0f848a057c13

Chiong, Meng Choung, Chong, Cheng Tung, Ng, Jo Han, Lam, Su Shiung, Tran, Manh Vu, Chong, William Woei Fong, Mohd Jaafar, Mohammad Nazri and Valera-Medina, Agustin (2018) Liquid biofuels production and emissions performance in gas turbines: a review. Energy Conversion and Management, 173, 640-658. (doi:10.1016/j.enconman.2018.07.082).

Record type: Review

Abstract

The increasing demand for clean and sustainable energy sources provides the impetus for the development of alternative fuels. Recent development of fuel-flexible gas turbine technologies enables the use of alternative non-fossil fuels that could play key roles in contributing to the global efforts in meeting emissions targets. This review highlights the current state-of-the-art production and properties of alternative fuels such as straight vegetable oil (SVO), biodiesel, bioethanol, bio-oil, hydrogenated vegetable oil (HVO) and Fischer-Tropsch (FT) fuel. This is followed by the evaluation of combustion performances in gas turbines. All of the alternative liquid biofuels have shown their potentials in reducing regulated emissions such as NOx, CO and soot under favourable operating conditions. Both HVO and FT fuels show comparable performance as that of jet fuel and can be used in aviation gas turbines, although the present day high production cost restricts the large-scale adoption, limiting its utility. They also have considerably higher cetane number than the rest, making it easier for the fuel to ignite. As for stationary power generation gas turbines that need not carry payloads, the other four alternative biofuels of biodiesel, bioethanol, bio-oil and SVO are possible candidates despite the physics-chemical properties variations when compared to fossil fuels. Amongst them, the use of SVO and bio-oil in gas turbines would require the parallel development of fuel supply systems and atomisation technologies to improve the combustion of the fuels. In all, the alternative liquid fuels reviewed provides realistic opportunities for cleaner and more sustainable operation of aviation and power generation gas turbines. Profound understanding on the fundamental combustion characteristics of the fuels are essential to expedite their mass adoption in gas turbine applications.

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More information

Accepted/In Press date: 25 July 2018
e-pub ahead of print date: 9 August 2018
Published date: 1 October 2018
Keywords: Alternative fuel, Biodiesel, Biofuels, FT fuel, Gas turbine, Jet fuel

Identifiers

Local EPrints ID: 426053
URI: http://eprints.soton.ac.uk/id/eprint/426053
ISSN: 0196-8904
PURE UUID: 0a5e3963-a8a3-44cd-aea1-39e575e08bfb

Catalogue record

Date deposited: 09 Nov 2018 17:30
Last modified: 23 Jan 2020 17:33

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Contributors

Author: Meng Choung Chiong
Author: Cheng Tung Chong
Author: Jo Han Ng
Author: Su Shiung Lam
Author: Manh Vu Tran
Author: William Woei Fong Chong
Author: Mohammad Nazri Mohd Jaafar
Author: Agustin Valera-Medina

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