Article
Energy & Fuels
Xin Su, Hao Chen, Nan Gao, Meijuan Ding, Xiaochen Wang, Hongming Xu, Peng Zhang
Summary: This study investigates the use of cyclohexanol-diesel blends in diesel engines. The results show that the blends have a longer ignition delay and a shorter combustion duration, and increase NOx emissions. However, with the appropriate blending ratio and injection timing, the blended fuel can reduce particulate emissions.
Article
Chemistry, Multidisciplinary
Ye Min Oo, Jarernporn Thawornprasert, Narong Intaprom, Kammarat Rodniem, Krit Somnuk
Summary: The research compared the engine performance and exhaust emissions of direct injection (DI) and indirect injection diesel (IDI) engines fueled with different types of fuel. Results showed that the DI engine had higher efficiency and lower fuel consumption compared to the IDI engine, particularly at high engine loads. The study also demonstrated that the use of nanoemulsion fuel in the IDI engine significantly reduced NOx emissions.
Article
Thermodynamics
Mustafa Vargun, Ahmet Necati Ozsezen
Summary: The study investigates the impact of fuel injection timing on combustion and exhaust characteristics of a diesel engine using alcohol-diesel mixtures. Engine tests with fixed control parameters show that advancing fuel injection timing improves cylinder gas pressure and heat release rate. The use of alcohol-diesel blends reduces ignition delay, combustion duration, increases knocking tendency, and decreases CO and NH3 emissions. Changes in fuel injection timing effectively reduce CO2 and NOx emissions.
Article
Metallurgy & Metallurgical Engineering
Sun Yi, Sun Wan-chen, Guo Liang, Yan Yu-ying, Zhang Hao, Li Xiu-ling
Summary: This study investigates the influence of a split-injection strategy on combustion and emission characteristics using diesel/n-butanol blends. The results show that the split-injection strategy reduces NOx emissions and keeps smoke opacity low, but increases accumulation mode particles. Utilizing EGR stratification optimizes emission results, especially the suppression of accumulation mode particulate emissions.
JOURNAL OF CENTRAL SOUTH UNIVERSITY
(2022)
Review
Thermodynamics
Seyyed Hassan Hosseini, Athanasios Tsolakis, Avinash Alagumalai, Omid Mahian, Su Shiung Lam, Junting Pan, Wanxi Peng, Meisam Tabatabaei, Mortaza Aghbashlo
Summary: Hydrogen is a promising energy carrier that can be produced from renewable resources. It can be used in diesel engines with little modification and has the potential to improve performance and reduce emissions. However, there are challenges such as knocking combustion and higher nitrogen oxide emissions. This paper comprehensively reviews the effects of hydrogen on dual-fuel diesel engines and discusses opportunities and limitations. Suggestions for improving hydrogen-fueled diesel engines include reformulating pilot fuel, blending hydrogen with other fuels, adjusting engine parameters, and using exhaust gas catalysts.
PROGRESS IN ENERGY AND COMBUSTION SCIENCE
(2023)
Article
Green & Sustainable Science & Technology
Wanchen Sun, Mengqi Jiang, Liang Guo, Hao Zhang, Zhiqin Jia, Zhenshan Qin, Wenpeng Zeng, Shaodian Lin, Genan Zhu, Shenyue Ji, Yimo Zhu
Summary: This study explores the application potential of renewable methanol and direct dual fuel stratification (DDFS) technology in marine internal combustion engines. By optimizing the fuel injection strategy for a marine methanol/diesel DDFS engine, it is found that the fuel mixing process plays a crucial role in the combustion state switching. A strategy with earlier start of diesel injection (SOID) compared to the start of methanol injection (SOIM) and an appropriately extended injection interval achieves better engine performance. Furthermore, the optimized methanol two-stage injection strategy improves fuel economy while causing a decrease in combustion completeness and increase in emissions.
JOURNAL OF CLEANER PRODUCTION
(2023)
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
Engineering, Environmental
Po Li, Xiang Li, Hao Wang, Feng Guo
Summary: The study investigates the application of two different ammonia fuel injection systems in a diesel generator and finds that gas phase port injection (GPPI) is more effective in reducing the CO2 content of ammonia in the exhaust gas compared to premixed charge compression ignition (PCCI). However, both modes reduce the thermal efficiency of the generator, with ammonia having a greater negative impact on the thermal efficiency of the PCCI mode.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
Article
Energy & Fuels
Federico Millo, Theodoros Vlachos, Andrea Piano
Summary: This paper provides a comprehensive characterization of diesel Particulate Matter (PM) in terms of various factors, including mass, chemical composition, particles number, size distribution, and mutagenic potential. The study found that different fuel blends in a diesel engine can result in variations in the chemical composition and toxicity of PM. Biofuel blends showed negligible differences in particles number distributions compared to standard diesel, but had an impact on the mutagenic potential of PM samples.
Article
Thermodynamics
Idris Cesur
Summary: To address the increasing energy consumption, alternative fuels to petroleum should be used. Combining the use of alternative fuel and water injection management can improve engine performance and significantly reduce exhaust emissions.
THERMAL SCIENCE AND ENGINEERING PROGRESS
(2023)
Article
Environmental Sciences
Ibrahim Yildiz, Hakan Caliskan, Kazutoshi Mori
Summary: The study demonstrates the effectiveness of a cordierite-based diesel particulate filter (CPF) in reducing total particle concentration, soot concentration, CO and HC emissions from a diesel engine. However, the utilization of CPF also leads to an increase in CO2 and NOx emissions due to oxidation processes within the filter.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Energy & Fuels
Mustafa Deniz Altinkurt, Menno Merts, Martin Tuner, Ali Turkcan
Summary: Accelerated by the harms and depletion risk of fossil fuels, transition to low-carbon or renewable fuels have become an urgent need for combustion engines to decarbonize transport sectors. Natural gas-diesel dual-fuel combustion is a promising method to achieve these goals by allowing the usage of natural gas in diesel engines. However, this concept has drawbacks of low combustion efficiency, high unburned hydrocarbon (HC) emissions and high cyclic variations at low engine loads. To find solutions to these drawbacks, split diesel injections with variable injection timings and mass split ratios were investigated experimentally and numerically. The results showed that split injection had the potential to reduce HC emissions and cyclic variations, improve combustion efficiency, and decrease NOx emissions. Furthermore, simulations demonstrated that early single injection dual-fuel cases contributed to a more homogeneous temperature distribution and better oxidization of methane near the cylinder wall and central region above the piston crown.
Article
Energy & Fuels
Nikhil Sharma, Avinash Kumar Agarwal
Summary: Optimizing fuel injection timings is crucial for reducing particulate emissions from GDI engines.
JOURNAL OF ENERGY RESOURCES TECHNOLOGY-TRANSACTIONS OF THE ASME
(2022)
Article
Energy & Fuels
Luis Tipanluisa, Natalia Fonseca, Jesus Casanova, Jose-Maria Lopez
Summary: This study investigates the effects of different n-butanol/diesel fuel blends on a Euro V heavy-duty diesel engine's performance and emissions. The results show that using n-butanol can improve engine performance and reduce particulate emissions in most operating conditions, while increasing CO emissions. The study also indicates that THC emissions increase with n-butanol content, while NO2 emissions decrease.
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
Engineering, Chemical
Mohit Raj Saxena, Rakesh Kumar Maurya
Summary: This study investigates the influence of diesel injection pressure, injection timing, and port-injected gasoline mass on nanoparticle emissions from a light-duty gasoline-diesel RCCI engine. The results show that changes in diesel injection pressure and timing have a significant impact on nanoparticle emissions, while increasing port fuel injected mass leads to higher particle concentration and unburned hydrocarbon emissions.
PARTICULATE SCIENCE AND TECHNOLOGY
(2021)
Article
Chemistry, Physical
Omprakash Sarkar, J. Santhosh, Atul Dhar, S. Venkata Mohan
Summary: This study successfully integrated acidogenesis and methanogenesis processes, achieving higher production of biohythane from food waste. By operating with two different parent cultures and in two phases, the study overcame the obstacle of single-phase operation to maximize energy recovery from untreated substrate.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Environmental Sciences
Avinash Kumar Agarwal, Akhilendra Pratap Singh, Vikram Kumar
Summary: This experimental study compared particulate matter (PM) characteristics of different low-temperature combustion (LTC) strategies, finding that the reactivity-controlled compression ignition (RCCI) strategy emitted a relatively lower concentration of particles compared to premixed charge compression ignition (PCCI) and conventional compression ignition (CI) strategies. RCCI strategy showed higher concentration of accumulation mode particles in exhaust. PM bound trace metal analysis indicated lower trace metal emissions from RCCI and PCCI strategies. These findings highlight the effectiveness of LTC strategies over CI combustion in reducing both PM and NOx emissions.
ENVIRONMENTAL POLLUTION
(2021)
Review
Environmental Sciences
Sahil Rana, Mohit Raj Saxena, Rakesh Kumar Maurya
Summary: This study presents a review of the physical and chemical characteristics of particulate emissions from compression ignition (CI) engines. It was found that engine operating parameters and alternative fuels have significant effects on the particle number concentration, morphology, nanostructure, and oxidative reactivity of the particulate matter (PM).
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Energy & Fuels
Sarthak Nag, Atul Dhar, Arpan Gupta
Summary: This study found that EGR has different effects on combustion during hydrogen-diesel co-combustion. With an increase in EGR, the combustion process is negatively affected at low loads, while combustion variability improves at higher loads.
Article
Mechanics
Sharey Deep Guleria, Atul Dhar, Dhiraj V. Patil
Summary: This article presents experimental insights into the physics of water entry of hydrophobic spheres. Various parameters and dynamics of the trapped air-cavity are studied, including cavity formation, retraction, and Worthington-jet analysis. Different cavity shapes exhibit unique radial dynamics and surface energy characteristics, with specific behaviors such as bubble shedding observed for shallow seal conditions.
Review
Engineering, Civil
Mohit Raj Saxena, Rakesh Kumar Maurya, Prashant Mishra
Summary: This study focuses on the utilization of methanol in compression ignition engines, particularly in dual-fuel combustion mode, which can significantly reduce NOx, CO, soot, and nano-particle emissions. The combustion of methanol-diesel blended fuel shows potential to enhance performance while reducing emissions, although unburnt HC emissions may increase in methanol-diesel dual-fuel operation.
JOURNAL OF TRAFFIC AND TRANSPORTATION ENGINEERING-ENGLISH EDITION
(2021)
Article
Thermodynamics
Ajay Singh, Rakesh Kumar Maurya
Summary: This study examines a noisy nonlinear dynamical (NND) model for cyclic variations in SI engines using nonlinear time series methods. The analysis reveals that noise obscures the local patterns and higher periodic orbits of the dynamics, leading to fuzzy bifurcation diagrams. Increasing noise level and uncombusted residuals shift the onset of bifurcations towards higher equivalence ratio in the NND map. The application of the NND model to represent SI engine combustion dynamics with higher internal EGR results in a more complex dynamical nature.
INTERNATIONAL JOURNAL OF ENGINE RESEARCH
(2023)
Article
Thermodynamics
Ajay Singh, Rakesh Kumar Maurya
Summary: This study investigates the cyclic combustion dynamics of HCCI engine and utilizes nonlinear dynamic methods. The results show that higher engine speeds lead to greater combustion dynamic variations. Relative air-fuel ratios and intake air temperatures affect the deterministic characteristics of combustion.
INTERNATIONAL JOURNAL OF ENGINE RESEARCH
(2023)
Review
Energy & Fuels
Tomesh Kumar Sahu, Pravesh Chandra Shukla, Giacomo Belgiorno, Rakesh Kumar Maurya
Summary: Alcohol fuels, namely ethanol and methanol, have emerged as important alternatives for sustainable transportation due to their lower CO2 emissions. Their higher octane number suits spark ignition engines, while lower blend ratios can be used in compression ignition engines. Research on alcohol utilization in CI engines improves the soot-NOx trade-off characteristic and helps meet future emissions regulations. The potential of alcohol fuels for sustainable transportation lies in their overall lower CO2 emissions compared to diesel.
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
(2022)
Review
Thermodynamics
Avinash K. Agarwal, Akhilendra P. Singh, Antonio Garcia, Javier Monsalve-Serrano
Summary: This article reviews the application of advanced low-temperature combustion strategies in reducing harmful emissions from diesel engines. The RCCI combustion mode shows great potential in combustion control, engine performance, and applicability. However, it faces challenges such as emissions at low loads and pressure rise rate at high loads, limiting its practical use. The dual-mode concept provides a solution by switching between different combustion modes. The article provides recent advancements, data analysis, and guidance on fuel selection, parameter optimization, and performance improvement in overcoming challenges and promoting practical application of the RCCI combustion mode.
PROGRESS IN ENERGY AND COMBUSTION SCIENCE
(2022)
Article
Engineering, Mechanical
Inderpal Singh, Parmod Kumar, Atul Dhar
Summary: This study focuses on the waste heat recovery from engine coolant and provides a complete thermodynamic analysis, cycle configuration, and system size design. It is found that by using dual expander under fluctuating flow and heat input conditions, the cycle thermal efficiency can be enhanced.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART D-JOURNAL OF AUTOMOBILE ENGINEERING
(2022)
Article
Environmental Sciences
M. R. Saxena, S. Rana, R. K. Maurya
Summary: This study investigates the in-cylinder heat release features and nanoparticle emissions of a CNG-diesel RCCI engine. The study aims to determine the impact of low-temperature heat release (LTHR) and high-temperature heat release (HTHR) on particle emissions. LTHR is a smaller peak before the main HTHR on the heat release rate curve. The LTHR and HTHR are not separated on the curve, but the LTHRR and HTHRR rates are determined. The amount of LTHR and HTHR is calculated by analyzing the area under the respective LTHRR and HTHRR curves. The experiments show that increasing CNG masses result in reduced LTHR and HTHR, leading to the formation of nucleation mode particles (NMPs) and an increase in total particulate matter (PN).
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2023)
Article
Biotechnology & Applied Microbiology
Hemant Thakur, Narendra Kumar Rashmi, Narendra Kumar Verma, Vikas Sharma, Shrawan Kumar, Atul Dhar, Tulika Prakash, Satvasheel Powar
Summary: In this study, anaerobic co-digestion of food waste, bio-flocculated sewage sludge, and cow dung was tested using a synthetic consortia called E(C2)Tx. The co-digestion resulted in the highest hydrogen production and least carbon dioxide release. Metagenomic sequencing showed the dominance of hydrolysing microbes during the digestion process. The experiments were scaled up in two continuous digesters, and the highest VFA production and bio-methane yield were recorded.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2023)
Article
Thermodynamics
Punit Kumar, P. Anil Kishan, M. Nikhil Mathew, Atul Dhar
Summary: This study investigated the spark ignition of H2-air mixture in a constant volume combustion chamber at an initial pressure of 3 bar. It was found that the combustion chamber pressure rise is negatively dependent on the initial temperature, with peak pressure decreasing as initial temperature increases. Both stretched and unstretched flame velocities increase with initial temperature, but decrease as the mixture becomes leaner due to changes in free radicals concentration in the combustion chamber.
THERMAL SCIENCE AND ENGINEERING PROGRESS
(2021)
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.
