Review
Green & Sustainable Science & Technology
Himanshu Sharma, Amit Dhir, Sunil Kumar Mahla
Summary: The study indicates that utilization of biogas decreases efficiency and exhaust temperature of compression ignition engines, but increases specific fuel consumption; hydrogen supplementation shows better performance at high and moderate loads with zero carbon emissions, though it leads to an increase in nitrogen oxide emissions as hydrogen proportion rises. Bottlenecks in hydrogen application for dual fuel mode are also discussed in detail.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Chemistry, Physical
Reza Mahmoodi, Mortaza Yari, Jafar Ghafouri, Kamran Poorghasemi
Summary: Biogas can be used as a cheaper, renewable fuel in internal combustion engines. However, the variability in raw materials and production process can affect the combustion control. Research has shown that fixing the biogas components can impact the combustion behavior and emissions in internal combustion engines.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Review
Chemistry, Physical
Ram Narayan Bhagat, Kunja Bihari Sahu, Surendra Kumar Ghadai, Chandra Bhushan Kumar
Summary: The global demand for cleaner and greener sources of energy is increasing, and developed countries are shifting towards non-conventional/renewable/green sources of energy. They are also trying to involve developing countries in the fight against global warming and pollution. Hydrogen, with its high calorific value, abundance, and cleaner nature, is a suitable choice as a cleaner energy source.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Energy & Fuels
Bo Yang, Le Ning, Bing Liu, Guyu Huang, Yanxing Cui, Ke Zeng
Summary: The natural gas-air mixture state has significant influence on particulate emissions characteristics, especially in reducing ultrafine particulate emissions.
Article
Chemistry, Analytical
Paul Koesling, Christopher P. Rueger, Julian Schade, Sven Ehlert, Uwe Etzien, Anton N. Kozhinov, Yury O. Tsybin, Martin Rigler, Thomas Adam, Andreas Walte, Bert Buchholz, Ralf Zimmermann
Summary: This study evaluated the field-suitability of a prototype vacuum photoionization Orbitrap mass spectrometer through online on-site investigation of emissions from a ship diesel engine. The mass spectrometer showed high resolution and mass accuracy, allowing for selective and sensitive analysis of aromatic hydrocarbons. The study also found that the emerging fuel VLSFO emitted a substantial amount of polycyclic aromatic hydrocarbons (PAHs), indicating the need for further chemical criteria in legislative measures.
ANALYTICAL CHEMISTRY
(2022)
Article
Energy & Fuels
Taku Imamoto, Nobuyuki Kawahara, Eiji Tomita
Summary: This study investigates the effect of PREMIER combustion on biogas engine combustion. The research finds that as the proportion of CO2 increases, the combustion efficiency improves and knocking is less likely to occur.
Review
Chemistry, Physical
Nurullah Gultekin, Murat Ciniviz
Summary: The limited supply and negative environmental impacts of fossil fuels have driven the search for alternative energy sources. The use of hydrogen as a clean energy source in internal combustion engines can reduce emissions and provide an alternative to petroleum-derived fuels. This study highlights the importance of hydrogen ratio and combustion chamber design in engine performance and emissions, suggesting a hydrogen energy ratio between 5% and 20% and considering combustion characteristics when designing the chamber. It serves as a valuable resource for researchers working on dual fuel mode in compression ignition engines.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Energy & Fuels
Alireza Valipour Berenjestanaki, Nobuyuki Kawahara, Kazuya Tsuboi, Eiji Tomita
Summary: This study investigated the effect of carbon dioxide (CO2) and methane (CH4) ratio in dual-fuel gas engine PREMIER combustion, focusing on the impact of pilot fuel injection timing on engine efficiency and IMEP. The results show that advancing the injection timing can increase engine efficiency while slightly decreasing IMEP.
Article
Energy & Fuels
Usman Asad, Prasad S. Divekar, Ming Zheng
Summary: Dual-fuel combustion of ethanol and diesel in a high-compression ratio diesel engine showed improved combustion performance, reduced NOx and soot emissions, and increased net indicated efficiency compared to conventional diesel high-temperature combustion. The use of renewable bio-fuels such as ethanol in dual-fuel combustion can help reduce reliance on fossil fuels, lower greenhouse gas emissions, and enhance the viability of diesel engines for heavy-duty transport applications.
Article
Energy & Fuels
Swapnil Bhurat, Shyam Pandey, Venkateshwarlu Chintala, Manas Jaiswal, Caneon Kurein
Summary: Partially pre-mixed charge compression ignition (PCCI) and combustion chamber geometry play significant roles in improving the potential of compression ignition engines and their impact on the environment. Experimentation with a novel fuel vaporizer technology in a single-cylinder DI diesel engine showed improvements in engine characteristics when using PCCI mode with a toroidal combustion chamber (TCC) piston. Results demonstrated that PCCI mode effectively reduced NOx emissions and improved engine efficiency, but also showed limitations such as increased pressure rise rate at full engine load. The study suggests that the limitations of PCCI can be mitigated by utilizing TCC piston geometry, but the usage of PCCI is constrained by specific vapor flow rates and engine load ranges.
Article
Energy & Fuels
Zhiyong Li, Yang Wang, Zibin Yin, Zhanbin Gao, Yongjian Wang, Xudong Zhen
Summary: This study investigates the effects of dual-fuel injector parameters on the performance and emissions of a diesel/methanol dual-fuel direct injection engine using a three-dimensional simulation model. The results show that the combination of nozzle number and diameter has a significant impact on fuel economy and emissions, and the spray spatial angle also has some influence on performance and emissions.
Article
Energy & Fuels
Zhijie Zhu, Xingyu Liang, Lei Cui, Kun Wang, Xiaohui Wang, Shihao Zhu
Summary: Currently, most ships still rely on fossil fuels as the main source for marine engines. However, diesel as a fuel for marine engines is no longer sufficient to meet the economic requirements of shipping and emission restrictions imposed by regulations. This research examined the viability of employing hydrogen-carrying fuel ammonia (NH3) in marine engines to develop a low-carbon combustion technology, to address the carbon emission problem of marine diesel engines.
Article
Green & Sustainable Science & Technology
M. Feroskhan, Saleel Ismail, Gobinath Natarajan, Sreekanth Manavalla, T. M. Yunus Khan, Shaik Dawood Abdul Khadar, Mohammed Azam Ali
Summary: Alternative fuels offer a promising solution to mitigate pollution from conventional IC engines, reducing emissions without compromising performance. This research investigates the use of simulated biogas and neat diesel in a compression ignition engine under dual fuel mode. The study finds that biogas can provide up to 90% of the total energy input when used as a fuel in the engine.
Article
Energy & Fuels
B. Karpanai Selvan, Soni Das, M. Chandrasekar, R. Girija, S. John Vennison, N. Jaya, P. Saravanan, M. Rajasimman, Yasser Vasseghian, N. Rajamohan
Summary: The study investigates the performance and emission characteristics of various biomass blends in a diesel engine. The results show that the AO10D blend performs well with higher thermal efficiency and lower emissions at 50% load.
Article
Chemistry, Applied
Yiqiang Pei, Decheng Wang, Shouying Jin, Yuncheng Gu, Chunling Wu, Binyang Wu
Summary: To reduce carbon emissions from internal combustion engines and address global warming, Ammonia-Diesel Dual-Fuel (ADDF) combustion has been considered as a viable strategy. This research developed an ADDF engine experimental platform and investigated the use of Premixed-Charge Compression Ignition (PCCI) combustion and diesel-piloted combustion modes under different operating conditions. The results showed high thermal efficiency and low emissions could be achieved with the appropriate diesel injection strategy and intake pressure settings.
FUEL PROCESSING TECHNOLOGY
(2023)
Article
Energy & Fuels
Duc-Khanh Nguyen, Louis Sileghem, Sebastian Verhelst
Review
Thermodynamics
Sebastian Verhelst, James W. G. Turner, Louis Sileghem, Jeroen Vancoillie
PROGRESS IN ENERGY AND COMBUSTION SCIENCE
(2019)
Article
Thermodynamics
Vikram Singh, Jelmer Johannes Rijpkema, Karin Munch, Sven B. Andersson, Sebastian Verhelst
APPLIED THERMAL ENGINEERING
(2020)
Article
Energy & Fuels
Duc-Khanh Nguyen, James Szybist, Louis Sileghem, Sebastian Verhelst
Article
Thermodynamics
Gilles Decan, Tommaso Lucchini, Gianluca D'Errico, Sebastian Verhelst
APPLIED THERMAL ENGINEERING
(2020)
Article
Energy & Fuels
Rajesh Kumar Prasad, Nirendra Mustafi, Avinash Kumar Agarwal
Article
Environmental Sciences
Francois Boveroux, Severine Cassiers, Philippe De Meyer, Pascal Buekenhoudt, Benjamin Bergmans, Francois Idczak, Herve Jeanmart, Sebastian Verhelst, Francesco Contino
Summary: The study found that particle number emission factors measured at low idle show a high correlation with those obtained during homologation cycles or real-driving emission measurements. Additionally, the average Particle Number (PN) emission factors are highly impacted by high emitters in the fleet and the mileage of the vehicles.
ATMOSPHERIC ENVIRONMENT
(2021)
Article
Energy & Fuels
James W. G. Turner, Andrew G. J. Lewis, Sam Akehurst, Chris J. Brace, Sebastian Verhelst, Jeroen Vancoillie, Louis Sileghem, Felix C. P. Leach, Peter P. Edwards
Article
Thermodynamics
Haohan Li, Roel Verschaeren, Tarek Beji, Sebastian Verhelst
Summary: This paper investigates the evaporating sprays for medium speed marine engines using optical measurements, explores the effects of ambient gas temperature and density on spray penetration, proposes empirical correlations for spray penetration, and suggests a time-dependent injection pressure profile for calculation of spray penetration. The study also compares the effects of gas turbulence on spray characteristics under different ambient gas densities and engine loads.
EXPERIMENTAL THERMAL AND FLUID SCIENCE
(2021)
Article
Green & Sustainable Science & Technology
Avinash Kumar Agarwal, Nirendra Nath Mustafi
Summary: Vehicular emissions play a significant role in air pollution, prompting researchers to seek new ways to control it. The advancement of methods and technologies for monitoring vehicle emissions is crucial for complying with stringent regulations and addressing environmental concerns.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2021)
Article
Energy & Fuels
Avinash Kumar Agarwal, Prashumn, Hardikk Valera, Nirendra Nath Mustafi
Summary: The study investigated the impact of DEE-diesel blends on unregulated and particulate emissions from the engine, showing that DEE-diesel blends can reduce total particle number and mass emissions to some extent.
Review
Multidisciplinary Sciences
A. L. Olson, M. Tuner, S. Verhelst
Summary: Due to renewable fuel mandates, the increased production of biodiesel has resulted in an oversupply of low-cost glycerol, which may negatively impact the sustainability of the biodiesel industry. To address this issue, researchers have investigated the transformation of glycerol into value-added products, particularly additives for internal combustion engine fuels. This study provides a summary of the literature on the chemical pathways for converting glycerol into fuel additives, with a focus on glycerol acetals/ketals, ethers, and esters (acetates). The effectiveness of different glycerol-derived compounds is illustrated through various examples from the literature, and research gaps and suggestions for future work are also identified.
Article
Energy & Fuels
Jeroen Dierickx, Luc Mattheeuws, Koen Christianen, Karsten Stenzel, Sebastian Verhelst
Summary: Hydrogen and methanol are promising fuels for sustainable transport due to their CO2 neutral, ultralow emissions, and high efficiency properties. The dual-fuel technology, where diesel is used as a pilot to ignite injected hydrogen or methanol, is of interest for retrofitting existing diesel engines. This study focuses on medium speed large bore engines and investigates the ignition delay timing of the diesel pilot, which is crucial for accurate numerical prediction of heat release.
Proceedings Paper
Engineering, Mechanical
Vikram Singh, Erik Svensson, Sebastian Verhelst, Martin Tuner
PROCEEDINGS OF THE ASME INTERNAL COMBUSTION ENGINE FALL TECHNICAL CONFERENCE, 2018, VOL 2
(2019)
Proceedings Paper
Energy & Fuels
M. S. Hossain, J. Ferdous, M. S. Islam, M. R. Islam, N. N. Mustafi, H. Haniu
2ND INTERNATIONAL CONFERENCE ON ENERGY AND POWER (ICEP2018)
(2019)
Article
Energy & Fuels
Yingna Du, Chen Huang, Wei Jiang, Qiangwei Yan, Yongfei Li, Gang Chen
Summary: In this study, anionic surfactants modified hydrotalcite was used as a flow improver for crude oil under low-temperature conditions. The modified hydrotalcite showed a significant viscosity reduction effect on crude oil. The mechanism of the modified hydrotalcite on viscosity and pour point of crude oil was explored through characterization and analysis of the modified hydrotalcite and oil samples.
Article
Energy & Fuels
Mohammad Saeid Rostami, Mohammad Mehdi Khodaei
Summary: In this study, a hybrid structure, MIL-53(Al)@MWCNT, was synthesized by combining MIL-53(Al) particles and -COOH functionalized multi-walled carbon nanotube (MWCNT). The hybrid structure was then embedded in a polyethersulfone (PES) polymer matrix to prepare a mixed matrix membrane (MMM) for CO2/CH4 and CO2/N2 separation. The addition of MWCNTs prevented MIL-53(Al) aggregation, improved membrane mechanical properties, and enhanced gas separation efficiency.
Article
Energy & Fuels
Yunlong Li, Desheng Huang, Xiaomeng Dong, Daoyong Yang
Summary: This study develops theoretical and experimental techniques to determine the phase behavior and physical properties of DME/flue gas/water/heavy oil systems. Eight constant composition expansion (CCE) tests are conducted to obtain new experimental data. A thermodynamic model is used to accurately predict saturation pressure and swelling factors, as well as the phase boundaries of N2/heavy oil systems and DME/CO2/heavy oil systems, with high accuracy.
Article
Energy & Fuels
Morteza Afkhamipour, Ebad Seifi, Arash Esmaeili, Mohammad Shamsi, Tohid N. Borhani
Summary: Non-conventional amines are being researched worldwide to overcome the limitations of traditional amines like MEA and MDEA. Adequate process and thermodynamic models are crucial for understanding the applicability and performance of these amines in CO2 absorption, but studies on process modeling for these amines are limited. This study used rate-based modeling and Deshmukh-Mather method to model CO2 absorption by DETA solution in a packed column, validated the model with experimental data, and conducted a sensitivity analysis of mass transfer correlations. The study also compared the CO2 absorption efficiency of DETA solution with an ionic solvent [bmim]-[PF6] and highlighted the importance of finding optimum operational parameters for maximum absorption efficiency.
Article
Energy & Fuels
Arastoo Abdi, Mohamad Awarke, M. Reza Malayeri, Masoud Riazi
Summary: The utilization of smart water in EOR operations has gained attention, but more research is needed to understand the complex mechanisms involved. This study investigated the interfacial tension between smart water and crude oil, considering factors such as salt, pH, asphaltene type, and aged smart water. The results revealed that the hydration of ions in smart water plays a key role in its efficacy, with acidic and basic asphaltene acting as intrinsic surfactants. The pH also influenced the interfacial tension, and the aged smart water's interaction with crude oil depended on asphaltene type, salt, and salinity.
Article
Energy & Fuels
Dongao Zhu, Kun Zhu, Lixian Xu, Haiyan Huang, Jing He, Wenshuai Zhu, Huaming Li, Wei Jiang
Summary: In this study, cobalt-based metal-organic frameworks (Co-based MOFs) were used as supports and co-catalysts to confine the NHPI catalyst, solving the leaching issue. The NHPI@Co-MOF with carboxyl groups exhibited stronger acidity and facilitated the generation of active oxygen radicals O2•, resulting in enhanced catalytic activity. This research provides valuable insights into the selection of suitable organic linkers and broadens the research horizon of MOF hybrids in efficient oxidative desulfurization (ODS) applications.
Article
Energy & Fuels
Edwin G. Hoyos, Gloria Amo-Duodu, U. Gulsum Kiral, Laura Vargas-Estrada, Raquel Lebrero, Rail Munoz
Summary: This study investigated the impact of carbon-coated zero-valent nanoparticle concentration on photosynthetic biogas upgrading. The addition of nanoparticles significantly increased microalgae productivity and enhanced nitrogen and phosphorus assimilation. The presence of nanoparticles also improved the quality of biomethane produced.
Article
Energy & Fuels
Yao Xiao, Asma Leghari, Linfeng Liu, Fangchao Yu, Ming Gao, Lu Ding, Yu Yang, Xueli Chen, Xiaoyu Yan, Fuchen Wang
Summary: Iron is added as a flocculant in wastewater treatment and the hydrothermal carbonization (HTC) of sludge produces wastewater containing Fe. This study investigates the effect of aqueous phase (AP) recycling on hydrochar properties, iron evolution and environmental assessment during HTC of sludge. The results show that AP recycling process improves the dewatering performance of hydrochar and facilitates the recovery of Fe from the liquid phase.
Article
Energy & Fuels
He Liang, Tao Wang, Zhenmin Luo, Jianliang Yu, Weizhai Yi, Fangming Cheng, Jingyu Zhao, Xingqing Yan, Jun Deng, Jihao Shi
Summary: This study investigated the influence of inhibitors (carbon dioxide, nitrogen, and heptafluoropropane) on the lower flammability limit of hydrogen and determined the critical inhibitory concentration needed for complete suppression. The impact of inhibitors on explosive characteristics was evaluated, and the inhibitory mechanism was analyzed with chemical kinetics. The results showed that with the increase of inhibitor quantity, the lower flammability limit of hydrogen also increased. The research findings can contribute to the safe utilization of hydrogen energy.
Article
Energy & Fuels
Zonghui Liu, Zhongze Zhang, Yali Zhou, Ziling Wang, Mingyang Du, Zhe Wen, Bing Yan, Qingxiang Ma, Na Liu, Bing Xue
Summary: In this study, high-performance solid catalysts based on phosphotungstic acid (HPW) supported on Zr-SBA-15 were synthesized and evaluated for the one-pot conversion of furfural (FUR) to γ-valerolactone (GVL). The catalysts were characterized using various techniques, and the ratio of HPW and Zr was found to significantly affect the selectivity of GVL. The HPW/Zr-SBA-15 (2-4-15) catalyst exhibited the highest GVL yield (83%) under optimized reaction conditions, and it was determined that a balance between Bronsted acid sites (BAS) and Lewis acid sites (LAS) was crucial for achieving higher catalytic performance. The reaction parameters and catalyst stability were also investigated.
Article
Energy & Fuels
Michael Stoehr, Stephan Ruoff, Bastian Rauch, Wolfgang Meier, Patrick Le Clercq
Summary: As part of the global energy transition, an experimental study was conducted to understand the effects of different fuel properties on droplet vaporization for various conventional and alternative fuels. The study utilized a flow channel to measure the evolution of droplet diameters over time and distance. The results revealed the temperature-dependent effects of physical properties, such as boiling point, liquid density, and enthalpy of vaporization, and showed the complex interactions of preferential vaporization and temperature-dependent influences of physical properties for multi-component fuels.
Article
Energy & Fuels
Yuan Zhuang, Ruikang Wu, Xinyan Wang, Rui Zhai, Changyong Gao
Summary: Through experimental validation and optimization of the chemical kinetic model, it was found that methanol can accelerate the oxidation reaction of ammonia, and methanol can be rapidly oxidized at high concentration. HO2 was found to generate a significant amount of OH radicals, facilitating the oxidation of methanol and ammonia. Rating: 7.5/10.
Article
Energy & Fuels
Radwan M. EL-Zohairy, Ahmed S. Attia, A. S. Huzayyin, Ahmed I. EL-Seesy
Summary: This paper presents a lab-scale experimental study on the impact of diethyl ether (DEE) as an additive to waste cooking oil biodiesel with Jet A-1 on combustion and emission features of a swirl-stabilized premixed flame. The addition of DEE to biodiesel significantly affects the flame temperature distribution and emissions. The W20D20 blend of DEE, biodiesel, and Jet A-1 shows similar flame temperature distribution to Jet A-1 and significantly reduces UHC, CO, and NOx emissions compared to Jet A-1.
Article
Energy & Fuels
Jiang Bian, Ziyuan Zhao, Yang Liu, Ran Cheng, Xuerui Zang, Xuewen Cao
Summary: This study presents a novel method for ammonia separation using supersonic flow and develops a mathematical model to investigate the condensation phenomenon. The results demonstrate that the L-P nucleation model accurately characterizes the nucleation process of ammonia at low temperatures. Numerical simulations also show that increasing pressure and concentration can enhance ammonia condensation efficiency.
Article
Energy & Fuels
Shiyuan Pan, Xiaodan Shi, Beibei Dong, Jan Skvaril, Haoran Zhang, Yongtu Liang, Hailong Li
Summary: Integrating CO2 capture with biomass-fired combined heat and power (bio-CHP) plants is a promising method for achieving negative emissions. This study develops a reliable data-driven model based on the Transformer architecture to predict the flowrate and CO2 concentration of flue gas in real time. The model validation shows high prediction accuracy, and the potential impact of meteorological parameters on model accuracy is assessed. The results demonstrate that the Transformer model outperforms other models and using near-infrared spectral data as input features improves the prediction accuracy.