Article
Chemistry, Physical
Yang Wang, Xiaohu Zhou, Long Liu
Summary: This study investigated the combustion performance of ammonia and hydrogen mixtures in a medium-speed marine diesel engine, proposing a scheme to reduce NOx emissions by lowering combustion temperature, introducing EGR, and combining with post-treatment technology.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Surya Kanth, Sumita Debbarma
Summary: Hydrogen enrichment improves combustion and increases thermal efficiency, while reducing fuel consumption and emissions. Rice bran oil performs better than karanja biodiesel in terms of performance.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Energy & Fuels
Zafar Said, Duc Trong Nguyen Le, Prabhakar Sharma, Viet Ha Dang, Huu Son Le, Dinh Tuyen Nguyen, Thi Anh Em Bui, Van Giao Nguyen
Summary: This study investigates the effects of engine load, injection time, and oxyhydrogen fuel flow rate on the combustion and emissions characteristics of a diesel engine. The addition of oxyhydrogen significantly improves fuel efficiency and reduces carbon-based emissions, except for nitrogen oxide emissions. The optimal engine operating parameters are determined through experimental testing, and the results are within 7% of the model-predicted output.
Article
Green & Sustainable Science & Technology
Suraj Verma, Rakesh Upadhyay, Ravi Shankar, Satya Prakash Pandey
Summary: Due to the depletion of fossil fuel reserves, rapid industrialization and development require alternative fuels. Algal biooil can be used as a sustainable biodiesel production by adding a certain fraction in the biodiesel. Addition of butanol in the blending mixture (BM) of biodiesel and fossil diesel can improve the fuel properties. This study focuses on the extraction of algal oil and biodiesel preparation, and evaluates the performance of five different BM with varying concentrations of titanium oxide. The results show that biodiesel derived from micro-algae mixed with butanol and titanium oxide has promising potential as an alternative fuel for diesel engines.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2023)
Article
Engineering, Chemical
Raouf Mobasheri, Abdel Aitouche, Sadegh Pourtaghi Yousefdeh, Abbas Zarenezhad Ashkezari
Summary: This paper experimentally assessed the impact of nano-particles and EGR rates on the performance and emission of a diesel engine fueled by biodiesel and ethanol. Three levels of TiO2 nanoparticles were added to biodiesel/diesel blends with varying proportions of biodiesel and ethanol. The results showed that the combination of B10E4 + EGR20 + TiO2 60 reduced NOx, CO, and HC emissions by 10%, 12.4%, and 17% respectively. The combinatory method of EGR-TiO2 nano-additives can be effective for diesel engines fueled with ethanol/biodiesel/diesel blends.
Article
Chemistry, Physical
Nurullah Gultekin, Murat Ciniviz
Summary: In recent years, there has been a rapid transition from internal combustion engines to hybrid and electric vehicles. This study focuses on improving the performance and emissions of internal combustion engines by using a hydrogen-diesel dual fuel mode in a dual-fuel compression ignition single cylinder engine. The results indicate that increasing the hydrogen energy ratio can lead to increased in-cylinder pressure values and decreased specific energy consumption. However, high hydrogen energy ratios have a negative impact on engine performance and emissions.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Green & Sustainable Science & Technology
Rajayokkiam Manimaran, Thangavelu Mohanraj, Raghavan Ashwin
Summary: Numerous studies have found that biodiesel is an ideal substitute for standard diesel fuel, but it produces more nitric oxide (NO) emissions. In this experimental study, a green synthesized cerium oxide (CeO2) nano-additive produced from Azadirachta indica leaf extract is used to reduce NO. The addition of 30 ppm CeO2 to a 20% Trichosanthes cucumerina oil biodiesel emulsion shows significant reductions in hydrocarbon, carbon monoxide, smoke opacity, and NO emissions when compared to standard diesel.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Green & Sustainable Science & Technology
Sanjeev Kumar, Amit Pal
Summary: This study examines the effect of the cetane improver 2-Ethylhexyl nitrate (EHN) on the performance and emission characteristics of an engine fueled by an algal biodiesel-diesel blend. The multi-objective response surface technique (MORSM) and Box-Behnken design are used to decrease the number of trials and optimize the engine operating settings for the optimum efficiency-least emission combination.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2022)
Article
Thermodynamics
Jianbin Luo, Zhonghang Liu, Jie Wang, Hongxiang Xu, Yuanhao Tie, Dayong Yang, Zhiqing Zhang, Chengtao Zhang, Haijiao Wang
Summary: In this study, a three-dimensional computational fluid dynamics model of a diesel engine cylinder was developed and a chemical reaction mechanism containing 53 species and 325 reactions was established. The effects of hydrogen addition on the performance, combustion, and emission characteristics of a dual-fuel engine were investigated. The results showed that hydrogen addition improved the engine performance, but slightly increased NOx emissions.
Article
Thermodynamics
Serhat Gunaydin, Ahmet Uyumaz, Tolga Kocakulak, Sertac Cosman, Hamit Solmaz, Fatih Aksoy
Summary: Diesel's ignition characteristics can be improved by using dibutyl maleate as an additive. Experimental results showed that the addition of dibutyl maleate increased in-cylinder pressure and ignition delay, while reducing combustion duration and thermal efficiency. The usage of dibutyl maleate also led to lower hydrocarbon and soot emissions, but increased carbon monoxide, carbon dioxide, and nitrogen oxides emissions.
APPLIED THERMAL ENGINEERING
(2024)
Article
Multidisciplinary Sciences
Mohammed Owais Ahmed Sajjad, T. Sathish, M. Rajasimman, T. R. Praveenkumar
Summary: In this study, biodiesel was produced from soapberry seed oil using the transesterification process. Three different blends of biodiesel and diesel fuel were tested in CRDI engines to evaluate their combustion, performance, and pollution characteristics. The 30BDSS blend showed the best results with higher NOx emissions but lower residual emissions compared to 100% diesel fuel.
SCIENTIFIC REPORTS
(2023)
Article
Energy & Fuels
Joseba Castresana, Gorka Gabina, Leopoldo Martin, Aingeru Basterretxea, Zigor Uriondo
Summary: Recent marine incidents have been partly caused by propulsion issues. Engine modelling techniques, specifically Artificial Neural Networks (ANN), have become an area of interest due to their accuracy and fast calculation times. However, most research has focused on predicting specific parameters for certain operation points. This study aimed to analyze the generalization capability of ANN in predicting multiple outputs in real engine conditions and successfully predicted 35 different performance and emission parameters.
Article
Chemistry, Physical
R. Vasanthakumar, M. Loganathan, S. Chockalingam, M. Vikneswaran, M. Manickam
Summary: This study aims to replace conventional diesel fuel with low and no carbon fuels like ethanol and hydrogen to reduce harmful emissions. The results indicate that using a blend of 10% ethanol and 9 lpm hydrogen as dual fuel in a diesel engine improves performance, combustion, and emissions compared to sole diesel operation.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Thermodynamics
Dipankar Saha, Bidesh Roy
Summary: This study investigates the effects of areca nut husk (ANH) nano-additive on the emission, combustion, and performance parameters of CI engine, fuelled with a blend of PGB-derived oil-water-diesel emulsion (D10EPO). The incorporation of ANH increases the peak heat release rate and in-cylinder pressure, decreases the brake-specific fuel consumption, and reduces emissions significantly, particularly at full load.
Article
Environmental Sciences
M. Dhanarasu, K. A. RameshKumar, P. Maadeswaran
Summary: This study investigates the performance, combustion, and emissions of hydrothermally synthesized (ZnO) nanoparticles-dispersed used sunflower oil methyl ester in a diesel engine. The results show that the addition of ZnO nanoparticles improves the efficiency and reduces emissions of the fuel.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2023)
Article
Thermodynamics
S. Bari, Idris Saad
Article
Energy & Fuels
S. Bari, Idris Saad
Article
Thermodynamics
Abdullatif Lacina Diaby, Stanley Joseph Miklavcic, Saiful Bari, Jonas Addai-Mensah
HEAT TRANSFER ENGINEERING
(2016)
Article
Engineering, Mechanical
S. Bari, Idris Saad
JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER-TRANSACTIONS OF THE ASME
(2016)
Article
Energy & Fuels
Pauras Sawant, Michael Warstler, Saiful Bari
Article
Energy & Fuels
Farhad M. Hossain, Md. Nurun Nabi, Md. Mostafizur Rahman, Saiful Bari, Thuy Chu Van, S. M. Ashrafur Rahman, Thomas J. Rainey, Timothy A. Bodisco, Kabir Suara, Zoran Ristovski, Richard J. Brown
Review
Energy & Fuels
S. Bari, S. N. Hossain, I. Saad
Article
Thermodynamics
Stephen Lucas, Saiful Bari
Summary: Internal losses in motors generate unwanted heat, which is dissipated to the surrounding environment through conduction and convection. The application of thermoelectric cooler (TEC) has been found to reduce winding temperatures significantly, potentially extending the lifespan of motors.
JOURNAL OF THERMAL SCIENCE AND ENGINEERING APPLICATIONS
(2021)
Article
Energy & Fuels
F. Kafrawi, K. H. Lee, C. Zhang, S. Bari
Summary: The research aims to observe the spray behavior of palm oil diesel (POD) and compare it with the combustion performance of diesel. Engine simulation using software shows that POD has longer penetration lengths, higher average diameter, and heavier fuel molecules compared to diesel, resulting in lower power and higher fuel consumption. Blending diesel with POD can improve combustion performance.
Article
Energy & Fuels
Stephen Lucas, Romeo Marian, Michael Lucas, Saiful Bari, Titilayo Ogunwa, Javaan Chahl
Summary: This paper explores the application of TEC modules to control core and winding temperatures in electrical machines, aiming to reduce the effects of thermal cycling and moisture issues. The research demonstrates that the temperature of the motor can be tightly controlled, thus reducing the effects of moisture and improving machine reliability.
Article
Thermodynamics
S. Bari, T. J. Dewar, C. Zhang
Summary: The research shows that adding H-2/O-2 gas mixture to the intake air of a diesel engine connected generator can significantly reduce the emission of PM concentrations and slightly reduce the emission of CO. The study also finds that there is no significant change in fuel mass flowrate, thermal efficiency, and bsfc.
THERMAL SCIENCE AND ENGINEERING PROGRESS
(2022)
Article
Thermodynamics
S. Lucas, S. Bari, R. Marian, M. Lucas, J. Chahl
Summary: This paper investigates the incorporation of Thermoelectric Electric Coolers (TEC) into motor cooling systems to improve heat flow and reduce temperatures. Experimental results show that the addition of TEC can significantly decrease temperatures and increase insulation life or motor output.
THERMAL SCIENCE AND ENGINEERING PROGRESS
(2022)
Proceedings Paper
Engineering, Mechanical
Chandana Samarasinghe, Mohammad Uddin, Saiful Bari, Cory Xian
Summary: This paper comprehensively explores the effect of key parameters on bone drilling performance, finding differences between bovine bone and Sawbone characteristics. Lower spindle speed and intermediate feedrate help reduce the risk of thermal necrosis.
PROCEEDINGS OF THE 13TH INTERNATIONAL CONFERENCE ON MECHANICAL ENGINEERING (ICME2019)
(2021)
Proceedings Paper
Energy & Fuels
S. Bari, S. N. Hossain
2ND INTERNATIONAL CONFERENCE ON ENERGY AND POWER (ICEP2018)
(2019)
Proceedings Paper
Engineering, Multidisciplinary
S. Bari, P. J. G. Johansen, A. J. T. Alherz
6TH BSME INTERNATIONAL CONFERENCE ON THERMAL ENGINEERING
(2015)
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.
