Fuel Communications最新文献

{"title":"Kerosene-H2 blending effects on flame properties in a multi-fuel combustor","authors":"Kaushal Dave,&nbsp;Sarah Link,&nbsp;Francesca De Domenico,&nbsp;Ferry Schrijer,&nbsp;Fulvio Scarano,&nbsp;Arvind Gangoli Rao","doi":"10.1016/j.jfueco.2025.100139","DOIUrl":"10.1016/j.jfueco.2025.100139","url":null,"abstract":"<div><div>In this study, the macroscopic properties of kerosene-H₂ blended flames are investigated in a multi-phase, multi-fuel combustor, focusing on the effects of increasing H₂ blending fractions. The non-reacting flow field of the swirl-stabilized combustor is characterized using PIV, and macro-structures in the flow and spray-swirl interactions are analyzed. Kerosene atomizers are tested to estimate variations in spray quality across different fuel blends. The changes in the optical properties of the flames are recorded using broadband chemiluminescence imaging while the changes in the acoustic emissions are recorded using a microphone. Results show that H₂ addition significantly alters the flame topology, transitioning from a lobed flame for pure kerosene to a single contiguous swirling flame for blended or pure H₂ cases. The flame luminosity decreases, with the emission color shifting from bright yellow (pure kerosene case) to dull yellow (multi-fuel cases) to a red-blue hue (pure H₂ case). These changes are attributed to variations in fuel distribution, heat release patterns, combustion mode, flame speed, and soot formation tendencies. The acoustic analysis reveals that a strong tonal behavior is observed under pure fuel conditions (prominent peaks at higher harmonics of 150 Hz) while broadband characteristics are exhibited under blended fuel conditions. The overall acoustic emissions in multi-fuel cases are reduced by ∼80 % compared to pure H₂ and ∼55 % compared to pure kerosene. This study highlights the effects of high levels of H₂ blending on flame dynamics and acoustic behavior in a multi-phase, multi-fuel combustor, offering valuable insights for the development of fuel-agnostic combustion systems.</div></div>","PeriodicalId":100556,"journal":{"name":"Fuel Communications","volume":"23 ","pages":"Article 100139"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143562657","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Experimental assessment of the stability and impact of water-based fracturing fluid with and without Triethanolamine (TEA)","authors":"Najeeb Anjum Soomro ,&nbsp;Ubedullah Ansari ,&nbsp;Bilal Shams ,&nbsp;Muhammad Khan Memon ,&nbsp;Darya Khan Bhutto ,&nbsp;Zhang Rui ,&nbsp;Yi Pan","doi":"10.1016/j.jfueco.2025.100137","DOIUrl":"10.1016/j.jfueco.2025.100137","url":null,"abstract":"<div><h3>Background</h3><div>This study develops a novel water-based fracturing fluid to address challenges of high water consumption, poor thermal stability, and inadequate proppant transport in conventional hydraulic fracturing fluids. Current fluids face limitations due to thermal degradation and environmental impact. To optimize performance, experimental analyses were conducted using water as the base fluid, with added gas condensate and various additives. Key assessments included viscosity measurements, stability tests across temperature ranges, and proppant fall rate evaluations.</div></div><div><h3>Methods</h3><div>The optimized formulation features a linear fluid with 45 cp viscosity and a crosslinked fluid enhanced to 135 cp through boric acid and a cross-linker. The addition of triethanolamine (TEA) further stabilized the fluid, reducing viscosity loss at higher temperatures. Comparative tests showed a 134 % viscosity increase in the crosslinked fluid, boosting proppant transport, while TEA addition decreased the proppant fall rate by 6.8 %.</div></div><div><h3>Findings</h3><div>Results confirm that the new fluid meets API standards, offering improved thermal stability and proppant transport efficiency, addressing key environmental concerns. This formulation represents a promising alternative for more effective and sustainable hydraulic fracturing.</div></div>","PeriodicalId":100556,"journal":{"name":"Fuel Communications","volume":"23 ","pages":"Article 100137"},"PeriodicalIF":0.0,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143610028","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Life cycle environmental assessment of Refuse-Derived Fuel (RDF) as an alternative to fossil fuels in cement production: A sustainable approach for mitigating carbon emissions","authors":"Helia Salaripoor,&nbsp;Hossein Yousefi,&nbsp;Mahmood Abdoos","doi":"10.1016/j.jfueco.2025.100135","DOIUrl":"10.1016/j.jfueco.2025.100135","url":null,"abstract":"<div><div>This study evaluates the environmental impacts of using Refuse-Derived Fuel (RDF) as an alternative fuel in the cement industry during natural gas shortages in Tehran, Iran. Given the increasing municipal solid waste production and the cement industry's significant carbon emissions, this research takes an innovative approach to assess RDF's potential to mitigate these issues through a life cycle approach. The analysis employs OpenLCA software to compare the environmental effects of RDF against traditional fossil fuels fuel oil and coal during colder months when natural gas is scarce. The study examines two RDF compositions, including organic waste and one excluding it, to determine their impacts on sustainability and fuel efficiency. Key findings indicate that RDF, mainly when produced with organic waste, offers substantial reductions in global warming potential (GWP) and other environmental impacts compared to conventional fuels. Specifically, the results demonstrate that RDF can significantly lower CO₂ emissions associated with cement production, positioning it as a viable option for enhancing energy sustainability within the industry. This research underscores the importance of integrating waste management strategies with energy recovery solutions, providing valuable insights for policymakers aiming to address both waste disposal and energy needs sustainably.</div></div>","PeriodicalId":100556,"journal":{"name":"Fuel Communications","volume":"22 ","pages":"Article 100135"},"PeriodicalIF":0.0,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143488759","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"On the Dependencies of the Average Specific Heat Capacity of Flue Gas","authors":"Dr. Dieter Förtsch","doi":"10.1016/j.jfueco.2025.100136","DOIUrl":"10.1016/j.jfueco.2025.100136","url":null,"abstract":"<div><div>The heat capacity of the flue gas is a basic property of a combustion process since it establishes the link between the energy balance and the combustion temperature. The dependencies of the average specific heat capacity on composition and temperature are thus of significance in interpreting differences in the achievable combustion temperature of different fuels. In this contribution, these dependencies are discussed and evaluated to provide simple correlations for use in practice. The correlations are applicable over the wide temperature range of 25…1600°C, while deviations at higher temperature are mainly due to dissociation of polyatomic gases. The provided correlations are also applicable if an oxygen carrier other than air is used, so that they are useful for a wide range of practical applications. This study also shows that the specific heat capacities of flue gases from different fuels are very similar, which is another reason – besides their similar \"heat of oxidation\" – why the adiabatic flame temperatures of different fuels are within a narrow range.</div></div>","PeriodicalId":100556,"journal":{"name":"Fuel Communications","volume":"23 ","pages":"Article 100136"},"PeriodicalIF":0.0,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143705493","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Biofuel in Ghana: Potentials and strategies for policy implementation","authors":"Stephen Kelly Kissi ,&nbsp;Wilson Ofori Sarkodie ,&nbsp;Mohammed Takase ,&nbsp;Emmanuel Amankwah","doi":"10.1016/j.jfueco.2025.100134","DOIUrl":"10.1016/j.jfueco.2025.100134","url":null,"abstract":"<div><div>Africa has a pressing need for biofuel policies due to several interconnected challenges encompassing vulnerability to price fluctuations, rural development, waste and land use management, and the need for value-added agricultural goods. State biofuel policies contribute to the ongoing global discourse on climate change, green and circular economy, and sustainability. Unfortunately, the resource curse seems to have befallen the Ghanaian economy as the nation still imports petroleum products after discovering enormous oil reserves. This article reviews Ghana's current biomass potential drawing lessons from failed projects and initiatives of top biofuel nations to effectively implement Ghana's latest biofuel policy. A significant portion of land in Ghana remains unused, yet utilizing less than 3 % of this land would be sufficient to meet the B10/E10 biofuel target using cassava as the feedstock. A closer examination of successful biofuel initiatives in Brazil and the United States highlights common factors contributing to their achievements. These include ambitious blending mandates, substantial investments in infrastructure, technology, and research, active stakeholder participation, and the provision of fiscal incentives. While Ghana's Renewable Energy Master Plan incorporates some of these components, its current targets lack sufficient ambition. Addressing these gaps in practice could place Ghana on a trajectory toward becoming one of the world's leading biofuel producers.</div></div>","PeriodicalId":100556,"journal":{"name":"Fuel Communications","volume":"22 ","pages":"Article 100134"},"PeriodicalIF":0.0,"publicationDate":"2025-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143134530","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Chemical agents for enhanced oil recovery: A comparison of a switchable hydrophilic solvent and deep eutectic solvent","authors":"A. Abdurrahman ,&nbsp;S.M. Shuwa ,&nbsp;F.N. Dabai ,&nbsp;O.D. Orodu ,&nbsp;F.T. Ogunkunle ,&nbsp;A.I. Igbafe ,&nbsp;B.Y. Jibril","doi":"10.1016/j.jfueco.2025.100133","DOIUrl":"10.1016/j.jfueco.2025.100133","url":null,"abstract":"<div><div>Switchable hydrophilic solvents (SHS) and deep eutectic solvents (DES) are trending chemical agents used in enhanced oil recovery. In this study, the oil recovery performance of DES, synthesized from tetrabutylammonium bromide (TBAB) and polyethylene glycol 400 (PEG 400) in a 1:2 molar ratio, and the switchable solvent N,N-dimethylcyclohexylamine (DMCHA) was evaluated through a displacement test. Additionally, the interactions between the rock, solvents, and crude oil were investigated through interfacial tension (IFT) measurements using an Altension tensiometer. The trend in the experimental IFT results was compared to the interactions between DMCHA and oil, DMCHA and rock, DES and oil, and DES and rock using quantum mechanics calculations performed with the Spartan v20 molecular modeling tool. The findings revealed that the IFT between the solvents and oil decreased to 5.32 mN/m with DES and 2.64 mN/m with DMCHA. Furthermore, core flooding experiments showed an incremental recovery of 12.0 % of the original oil in place (OOIP) with DES and 10.0 % OOIP with DMCHA for standard Berea sandstone core samples. Similarly, flooding experiments using Niger-Delta sandstone samples achieved an additional 25.8 % OOIP with DES compared to 12.0 % OOIP with DMCHA. In conclusion, both DES and DMCHA demonstrated their potential for crude oil recovery. However, DES proved to be more promising for tertiary enhanced oil recovery applications.</div></div>","PeriodicalId":100556,"journal":{"name":"Fuel Communications","volume":"22 ","pages":"Article 100133"},"PeriodicalIF":0.0,"publicationDate":"2025-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143134532","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Properties and Autoignition reactivity of diesel boiling range ethers produced from Guerbet alcohols","authors":"Robert L. McCormick ,&nbsp;Jon Luecke ,&nbsp;Samah Y. Mohamed ,&nbsp;Gina M. Fioroni ,&nbsp;Nimal Naser ,&nbsp;Teresa L. Alleman ,&nbsp;Seonah Kim ,&nbsp;Michael P. Lanci ,&nbsp;Kenneth Kar","doi":"10.1016/j.jfueco.2024.100131","DOIUrl":"10.1016/j.jfueco.2024.100131","url":null,"abstract":"<div><div>We examine the properties of diesel boiling range ethers made from coupling of alcohols produced by oligomerization of ethanol (Guerbet alcohols) for their utility as low-carbon liquid fuel blendstocks. Basic properties of boiling point, flash point, freezing point, density and viscosity are well suited for blending into diesel fuels. For the mixture of ethers the lightest component, di-n-butyl ether, can be present at up to 20 vol% while still having adequately high flashpoint for safe handling. Soot formation tendency (as yield sooting index) is well below that of conventional diesel. The ethers have similar compatibility with elastomers as conventional diesel, based on Hansen solubility parameter analysis. Oxidation stability was assessed for 30 vol% blends of individual ethers in a conventional diesel fuel using a long-term storage test. Over 6 weeks we observed no formation of peroxides or degradation. n-alkyl ethers with carbon number of 8 or higher have cetane number over 100, which is outside the defined range of cetane number, while branched ethers are over 70. The ethers also blend antagonistically into conventional diesel for cetane number, meaning that the blend cetane value is lower than predicted based on a linear by volume, mass, or mole model. We show that aromatics and naphthenes likely act as radical scavengers to slow or shut down autoignition of the highly reactive ethers at low to medium blend levels. Overall, diesel boiling range ethers show significant promise as high quality low-net carbon diesel blendstocks.</div></div>","PeriodicalId":100556,"journal":{"name":"Fuel Communications","volume":"22 ","pages":"Article 100131"},"PeriodicalIF":0.0,"publicationDate":"2024-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143134531","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessment of potential sites for biogas production plants from domestic, agricultural, and livestock waste","authors":"Rahim Moltames ,&nbsp;Younes Noorollahi ,&nbsp;Hossein Yousefi ,&nbsp;Behzad Azizimehr ,&nbsp;Amir Naseri","doi":"10.1016/j.jfueco.2024.100132","DOIUrl":"10.1016/j.jfueco.2024.100132","url":null,"abstract":"<div><div>Employing biomass energy can potentially play a key role in decreasing the environmental effects of non-renewable energy sources, especially global warming and its consequences. However, the availability of agricultural biomass, municipal garbage, and livestock waste is locally dispersed. The spatial distribution of these resources and the associated collection and transportation costs are the most important critical points for the success of the biomass power conversion facility. The biomass, scattered and loose, has a large cost of collecting and transporting, which can be reduced by proper planning and locating biomass collection centers and biomass-based power plants. Before planning collection centers, it is essential to assess biomass, energy, and the cost of biomass collection in this field. In this study, the biomass feed potential is evaluated using a Geographic Information System (GIS) to identify sites with biomass feed input capacity. Using the transport planning method, the best city to build the biomass power plant is specified.</div></div>","PeriodicalId":100556,"journal":{"name":"Fuel Communications","volume":"22 ","pages":"Article 100132"},"PeriodicalIF":0.0,"publicationDate":"2024-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143134533","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of difference in heating sources on ammonia reactivity: Possibility for photolysis-assisted ammonia combustion","authors":"Kenta Tamaoki ,&nbsp;Yoshito Ishida ,&nbsp;Takuya Tezuka ,&nbsp;Hisashi Nakamura","doi":"10.1016/j.jfueco.2024.100130","DOIUrl":"10.1016/j.jfueco.2024.100130","url":null,"abstract":"<div><p>Ammonia (NH₃) reactivity in a micro flow reactor with a controlled temperature profile (MFR) is reexamined through species measurements utilizing two heating sources in the MFR: an H₂/air flat flame and an electric heater. The maximum wall temperatures (<em>T</em>_w,<span><math><mspace></mspace></math></span>_max) formed in the reactor vary in a range of <em>T</em>_w,<span><math><mspace></mspace></math></span>_max = 1100–1400 K. A stoichiometric NH₃/air mixture is tested, and exhaust NH₃ is detected by a quadrupole mass spectrometer (QMS). Unexpectedly, NH₃ is completely consumed at temperatures at least 100 K lower in the H₂/air flat flame case compared to the electric furnace case, despite nearly identical conditions of a MFR characteristic residence time estimated by the wall temperature profiles and the convective flow velocity. Considering the non-thermal characteristics of the two heating sources that the H₂/air flat flame emits ultraviolet light, whereas infrared light as thermal radiation is emitted within the electric furnace, the possibility of NH₃ photolysis in the H₂/air flat flame case is discussed based on literature regarding emissions from the H₂/air flames, the transmittance of the quartz tube, and the photodissociation of NH₃ in the ultraviolet region. When ultraviolet light emitted from the H₂/air flat flame passes through the quartz tube and decomposes NH₃ into NH₂ and H radicals, these produced radicals enhance the growth of OH radicals, resulting in increased NH₃ reactivity. These findings suggest the possibility of photolysis-assisted ammonia combustion, which could be an additional method to overcome the low reactivity of NH₃.</p></div>","PeriodicalId":100556,"journal":{"name":"Fuel Communications","volume":"21 ","pages":"Article 100130"},"PeriodicalIF":0.0,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666052024000256/pdfft?md5=9d520c2f438656e3cacdeeeeb7b18442&pid=1-s2.0-S2666052024000256-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142172888","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigations on conical lean turbulent premixed hydrogenated natural gas flames","authors":"Dilay Güleryüz ,&nbsp;Christophe Allouis ,&nbsp;İskender Gökalp","doi":"10.1016/j.jfueco.2024.100128","DOIUrl":"10.1016/j.jfueco.2024.100128","url":null,"abstract":"<div><p>Hydrogen's ability to enhance carbon neutrality in combustion processes puts forward the use of hydrogenated fuels, both in the form of fuel and an energy carrier as a potential decarbonization solution. However, because of the nature of hydrogen, blending it with hydrocarbons causes crucial structural changes in the flame structure, including higher flame propagation velocities and higher flame temperatures, decreased instantaneous flame thickness, and increased risks of flame flashback and an increasing potential of NO_x emissions due to higher flame temperatures. These attributes encourage a thorough examination of hydrogenated blends of hydrocarbon fuels. Using lean premixed fuels is another technique to achieve efficient and cleaner combustion. However, due to the problem of flame instability in lean premixed combustion, forecasting the design points in terms of flame attributes is critical for better combustor designs.</p><p>In this study, conical (Bunsen type) lean premixed turbulent flames of hydrogenated natural gas-air mixtures are experimentally studied. Through chemiluminescence measurements of the OH* and CH* radicals and laser-induced Mie scattering, lean natural gas-air premixed flames are examined with subsequently increasing hydrogen addition rates up to 20% by volume and keeping the premixture velocity constant. The obtained data is utilized for exploring the dynamics of the turbulent flame front. The main turbulent premixed flame parameters we identified relate to the instantaneous and average topology of the flame such as the turbulent flame brush thickness and flame height. We also inferred global combustion parameters like the turbulent flame propagation speed from the experimental findings.</p></div>","PeriodicalId":100556,"journal":{"name":"Fuel Communications","volume":"20 ","pages":"Article 100128"},"PeriodicalIF":0.0,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666052024000232/pdfft?md5=a77f27acbf10883d74ac46c33a6d66a3&pid=1-s2.0-S2666052024000232-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141705235","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}