A Review of the Concept of Fuel-Water Internally Rapid Mixing Injector in Burner System

Sies, Mohamad Farid; Mustaffa, Norrizal; Zakaria, Hanis; Salleh, Hamidon; Manshoor, Bukhari; Khalid, Amir

doi:10.4028/www.scientific.net/amm.465-466.296

Cited by 3 publications

(4 citation statements)

References 26 publications

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“…Fig. 2 shows the computational domain which was obtained from the nozzle of premix injector.The premix injector has eight cylindrical holes with diameter of 0.8, 1.0 and 1.5 mm at an included angle of 45 o which was obtained from the previous experimental work [5]. To simulate the experiments, a single spray is considered by taking 1/8 part of the whole injector.…”

Section: Methodsmentioning

confidence: 99%

“…The present study aims to investigate the characteristics of the premixed injector using Computational Fluid Dynamics (CFD).The premixed injector with eight holes is used at three different nozzle diameters on the injection angle of 45° [5] which produces proper burning of the system. ANSYS Fluent is used to simulate and determine the results in terms of penetration, spray cone angle, droplet density and Sauter mean diameter (SMD).…”

Section: Introductionmentioning

confidence: 99%

“…From a practical standpoint, the fuel injector should produce good atomization of the fuel mass flow rate and a low pressure drop. Jet fuel spray or split in different regimes depending on the influence and interaction of the kinetic energy of the liquid, surface tension, viscosity, and the surrounding air [5].…”

Section: Introductionmentioning

confidence: 99%

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Effects of Nozzle Diameter on the Spray Characteristics of Premix Injector in Burner System

Amirnordin

Ismail

Yii

et al. 2015

AMM

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Abstract. An essential component of the injector nozzle geometry is to see the results spray atomization and mixture formation of the fuel-air combustion to improve performance, and reduce pollution from a burner. Studies involving the injectors in the combustion burner are still in a small proportion, particularly in the premix injector type. Thus, this study involves the efforts to determine the appropriate diameter of the premix injector where the injector sprays characteristics is produced by using Computational Fluid Dynamics (CFD). Multiphase of the volume of fluid (VOF) cavitations flow in the nozzle is determined through steady simulation while Eulerian-Eulerian twofluid approach is used for performing mixing of Jatropha oil and air. Further simulation is conducted using a spray with a discrete phase injection at the outflow hole injector nozzle. The investigation involves the modification of nozzle geometry on three different sizes of 0.8mm, 1.0mm and 1.5mm with the analysis focused on nozzle flow characteristics of the injector. The results indicate that a small changes in injector gives high impact to the spray and combustion of a burner. This shows the importance of nozzle dimensions which influences the nozzle flow and affects the spray characteristics, hence influence the combustion and emission of the burner system.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effects of Nozzle Diameter on the Spray Characteristics of Premix Injector in Burner System

Amirnordin

Ismail

Yii

et al. 2015

AMM

Self Cite

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“…Water-emulsified fuel reduces the flame temperature, leading to NOx reduction that had been tested by Kidoguchi, Yatsufusa. For HC cases, the increasing amount of water affects to decreasing of HC at all loads due to 'micro-explosion' that occurs when the volatility difference between water and diesel that results to violent disintegration of fine droplets and enhances fuel-air mixing in combustion chamber to reduces sort and HC [28]- [31].…”

Section: Characteristics Of Biodiesels Emissions On Burnermentioning

confidence: 99%

Emission and Performance Characteristic of Biodiesel Burner System: A Review

Lambosi

Khalid

Manshoor

2015

AMM

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Abstract. Shortage in hydrocarbon fuel sources, energy preservation and future stringent emission regulations have been a formidable challenge to the most prominent Small and Medium Enterprise (SME ) in Malaysia especially in the burner system of boiler. Therefore, the alternative source of fuel is receiving a lot of attention especially in the application of renewable energy such as biodiesel fuel (BDF) and low quality fuel. The application of biodiesel in the burner system offer not only attractive and more economical fuel but also creates problems of higher toxic emission such as nitrogen oxide (NOx), carbon monoxide (CO) and particulate matters (PM). This review presents the current status of the several studies that had been carried out on the emission and performance characteristic of biodiesel burners burner in term of the specific fuel type that could be used, type of emissions such as NOx, CO, CO2 and others operating condition that can be used to optimize the performance of the biodiesel burner system and also comment the progress of it in some areas. Based on the review clearly indicated that this form of alternative fuel can be an attractive renewable alternative energy source for burner system. IntroductionThe demanding growth of alternative energy sources costs have resulted the rising concerns about the environmental impacts of fossil fuels and their future availability. While being able to meet the energy demands for an ever-expanding global population, these sources must be sustainable and economically practical for large-scale implementation. Biodiesel is a promising alternative fuel to petroleum diesel because it had comparable properties to the common diesel, but with the added advantage of being renewable due to its biomass origin[1]- [3].The behavior of biodiesel in the internal combustion is had been investigate intensively around the world, but a few study on the behavior of biodiesel in burner and furnace. Generally burner function is to provide a stable operation and acceptable flame pattern over a specific set of operating condition. One of the operating conditions of a burner is to use specific type of fuels [4]and in this case biodiesel fuel. The biodiesels derived from different plant oils will have slightly different molecular structures such as carbon-chain lengths, hydrogen-carbon ratio and oxygen content due to the variation of the degree of unsaturation of the fatty acids in different sources [5]-[7].These fuels can be available in burner easier than other combustion equipment. However, the application of low quality fuel in the burner system offer not only attractive and more economical fuel but also generates complications of higher toxic emission such as nitrogen oxide (NOx), carbon monoxide (CO) and particulate matters (PM) compared to standard petroleum based diesels[8]- [11]. Thus, there is a need for tests to characterize the performance and emission properties of the biodiesel burner system.

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Effects of Nozzle Shape on the Flow Characteristics of Premix Injector Using Computational Fluid Dynamics (CFD)

Yii

Chin

Amirnordin

et al. 2015

AMM

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Abstract. The burner system is a patented, unique, higher-efficiency and fuel-injector system that works with a specially designed oil burner to create ultra-efficient combustion that reduces oil use, greenhouse gases and other harmful emissions. This research shows the injector nozzle geometries play a significant role in flow characteristics, atomization and formation of fuel-air mixture in order to improve combustion performance, and reducesome pollutant products from burner system. The aim of this research is to determine the effects of nozzle hole shape on flowcharacteristics of the premix injector by using CFD. Multiphase of volume of fluid (VOF) cavitating flow inside nozzles are determined by means of steady simulations and Eulerian-Eulerian two-fluid approach is used for performing mixing of Jatropha oil and air. Nozzle flow simulations resulted that cavitation area is strongly dependent on the nozzle hole shape. Conical hole with k-factor of 2 provides higher flow velocity and turbulent kinetic energy compared with conical hole with k-factor of 1.3 and cylindrical hole. The results show that the premix injector nozzle hole shape gives impact to the flowcharacteristics and indirectly affects the emission of the burner system.

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A Review of the Concept of Fuel-Water Internally Rapid Mixing Injector in Burner System

Cited by 3 publications

References 26 publications

Effects of Nozzle Diameter on the Spray Characteristics of Premix Injector in Burner System

Effects of Nozzle Diameter on the Spray Characteristics of Premix Injector in Burner System

Emission and Performance Characteristic of Biodiesel Burner System: A Review

Effects of Nozzle Shape on the Flow Characteristics of Premix Injector Using Computational Fluid Dynamics (CFD)

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