Combustion and emission performance of CO2/CH4/biodiesel and CO2/CH4/diesel blends in a Swirl Burner Generator

Kurji, Hayder Jabbar; Valera‐Medina, Agustin; Okon, Aniekan; Chong, CT

doi:10.1016/j.egypro.2017.12.025

Cited by 19 publications

(8 citation statements)

References 23 publications

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“…Further, the dual-fuel combustion also led to higher CO than natural gas by roughly 60 ppm when compared under the same equivalence ratio. Researchers from Cardiff University [13] experimented the multiphase fuel combustion in a gas turbine combustor, via the use of methane/CO2 blends with biodiesel and diesel as operating fuels. It was shown that the co-combustion of methane/CO2 with waste cooking oilderived biodiesel at 20 kW, coupled with 10% of CO2 blend dilution reduced the CO emissions by approximately 87%.…”

Section: Introductionmentioning

confidence: 99%

Dual-Fuel Operation of Biodiesel and Natural Gas in a Model Gas Turbine Combustor

Chong

Chiong

et al. 2020

Energy Fuels

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The dual-fuel combustion characteristics of palm biodiesel/methyl esters (PME) and natural gas (NG) in a model gas turbine swirl flame burner is investigated. The PME is atomised into a spray, while the gaseous NG is premixed with the main bulk swirling air before entering the combustion chamber. The fuels are supplied to the burner outlet at the PME:NG ratio of 90:10, 80:20 and 70:30 by mass. The preheated NG/air mixture flow passes through an axial swirler before mixing with the liquid fuel spray at the burner outlet for ignition. The dualfuel flames are compared with the baseline single fuel operation at the same thermal power output to assess the flame spectroscopic and emissions characteristics. The dual-fuel PME/NG flame structure is similar to the PME, where the sooty flame brush is noticeably absent. The PME and PME/NG flames emit higher peak intensity of OH* and CH* radicals as compared to diesel at the same equivalence ratio. Dual fuel operation results in lower NO but higher CO at  = 0.9 as compared to pure diesel and PME spray flames. The higher CO emission level for dual-fuel is attributed to poor mixing and incomplete combustion as a result of reduced air flow. At leaner operation of  = 0.65, enhanced turbulence due to higher bulk air flow results in improved mixing, lowering the overall CO but increasing the NO emissions due to the more intense flame core. The study shows that optimisation of the multiphase dual-fuel injection system is needed to achieve low emissions in a gas turbine combustor.

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Section: Introductionmentioning

confidence: 99%

Dual-Fuel Operation of Biodiesel and Natural Gas in a Model Gas Turbine Combustor

Chong

Chiong

et al. 2020

Energy Fuels

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“…in the diesel/syngas blends. Kurji et al [12] investigated the effect of methane/CO2 blend on waste cooking oil biodiesel and diesel combustion using a gas turbine swirl burner. Carbon monoxide (CO) emission was observed to have been lowered by approximately 87% as CO2 blending ratio increased by 10% on volume basis.…”

Section: Introductionmentioning

confidence: 99%

Effects of swirler vane angle on palm biodiesel/natural gas combustion in swirl-stabilised gas turbine combustor

Chiong

Valera‐Medina

Chong

et al. 2020

Fuel

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Combustion characteristics of palm biodiesel/methyl esters (PME) and natural gas (NG) blend were examined using a model gas turbine swirl burner at vane angle (θ) 30°, 45° and 60°. A twin fluid air blast atomiser was utilised for atomising liquid fuel at air-to-liquid ratio (ALR) 2.50.Swirling flow was initiated by using an axial swirler as main air passed through it. Combustible mixture was formed as swirling air flow mixed up with liquid fuel spray at burner outlet. Flame colour for PME/NG was mainly bluish, resembling that of neat PME despite subtle liftoff was observed in PME/NG swirl flames. Flame spectroscopic analysis showed that PME/NG swirl flames were more intense than baseline PME. Furthermore, θ = 60° operation led to significantly lower reaction intensity. Meanwhile, PME/NG combustion with 20%-30% NG input power fraction was observed to lower nitric oxide (NO) emission by a factor of 2.7 when compared with diesel and neat PME in θ = 60° combustion. Novel empirical models for emissions were also proposed, enabling the estimation of NO emission from PME/NG combustion at different NG input power proportions and vane angle. This research shows that PME/NG combustion is a promising way of reducing NO emission against neat PME and diesel in gas turbine operation.Moreover, flame instability provoked by liftoff in dual fuel operation is not aggravated, mainly due to nullification by intensified global reaction when NG is added. Such attributes feature PME/NG as a viable alternative fuel for use in land-based power generation gas turbines.

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“…Some studies prove that increasing the percentage of biodiesel, that substitutes diesel, decreases the emissions produced by its combustion [6,7]. The biodiesel is considered a renewable and ecological fuel drawn from lipids that are made to react with short-chain alcohol in the presence of a catalyst that can be acid, base or enzymatic, to produce a fatty acids' mono-alkyl esters mixture [8].…”

Section: Introductionmentioning

confidence: 99%

Development and Implementation of Virtual Instrumentation for the Measurement of Operating Parameters of an Engine Using Diesel-Biodiesel Mixtures

Pérez¹,

Ramos²,

Montero³

et al. 2019

Biofuels - Challenges and Opportunities

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Through a reaction of alkaline transesterification of soybean oil using sodium methoxide, biodiesel denominated as B100 was obtained, with which four mixtures of diesel-biodiesel B2, B5, B10, and B20 were prepared. Kinematic viscosity and high heating value of the four blends, B100, and diesel were determined. The blends, B100, and diesel were used in a motor of four cylinders in-line engine, air intake at atmospheric pressure with a power of 250 hp and 6000 cm 3 , operating at a constant rate of 850 ± 50 rpm, a temperature of 25°C, and a relative humidity of 50%. To monitor the emissions, rpm, fuel consumption, and temperature in the engine's exhaust manifold, which operates with diesel-biodiesel mixtures, an integral instrument that uses the virtual instrumentation technology was developed in the programming platforms LabVIEW 2010 and ARDUINO. The development and implementation of the virtual instrument allow monitoring in real time the parameters of internal combustion engines and presents the versatility, flexibility, scalability, and capacity to function in equipment that operates with different liquid fuels at a lower cost than the one that conventional systems offered. These characteristics represent a significant benefit in comparison with the measurement and monitoring systems in the present market.

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Combustion and emission performance of CO2/CH4/biodiesel and CO2/CH4/diesel blends in a Swirl Burner Generator

Cited by 19 publications

References 23 publications

Dual-Fuel Operation of Biodiesel and Natural Gas in a Model Gas Turbine Combustor

Dual-Fuel Operation of Biodiesel and Natural Gas in a Model Gas Turbine Combustor

Effects of swirler vane angle on palm biodiesel/natural gas combustion in swirl-stabilised gas turbine combustor

Development and Implementation of Virtual Instrumentation for the Measurement of Operating Parameters of an Engine Using Diesel-Biodiesel Mixtures

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