Article
Thermodynamics
Mebin Samuel Panithasan, Gnanamoorthi Venkadesan
Summary: This study investigates the usage of low viscous biofuel in CRDI engines and measures to reduce NOx emission through water injection technique. The results show that a lemon peel oil blend with rice husk and di-tert-butyl-peroxide as additives has lower NOx emissions and fuel consumption, but affects the brake thermal efficiency to some extent.
INTERNATIONAL JOURNAL OF ENGINE RESEARCH
(2023)
Article
Thermodynamics
Donghui Qi, Li Ma, Ru Chen, Xiaoxuan Jin, Manyao Xie
Summary: The study found that increasing EGR rates led to higher BSFC and lower BTE, while ternary blends showed better performance in some aspects but also came with some trade-offs.
APPLIED THERMAL ENGINEERING
(2021)
Article
Energy & Fuels
T. M. Yunus Khan, Manzoore Elahi M. Soudagar, S. Khandal, Syed Javed, Imran Mokashi, Maughal Ahmed Ali Baig, Khadiga Ahmed Ismail, Ashraf Elfasakhany
Summary: In this study, a diesel engine was modified to include a common rail direct injection system and rotating blades in the piston cavity to improve turbulence. The engine was tested with diesel and Ceiba pentandra oil biodiesel, along with hydrogen supply during the suction stroke. Varying fuel injection pressure and exhaust gas recirculation rates allowed for evaluation of performance and emissions under different loading conditions. The results showed reductions in HC and CO emissions, as well as NOx emissions, in the CRDi engine compared to the conventional CI mode, with further improvements observed with the use of EGR.
Article
Chemistry, Multidisciplinary
Guirong Wu, Jun Cong Ge, Min Soo Kim, Nag Jung Choi
Summary: This study investigates the effects of palm oil-diesel blend fuel on nitrogen oxides (NOx) and smoke emissions, and finds that under certain conditions, this fuel can perform comparably to diesel.
APPLIED SCIENCES-BASEL
(2022)
Article
Energy & Fuels
Nataraj Ganesan, Karthickeyan Viswanathan, S. V. Karthic, Porpatham Ekambaram, Wei Wu, Dai-Viet N. Vo
Summary: The present study investigates the combined effect of split injection techniques and RCCI-dual-fuel combustion in a single-cylinder CRDI research engine operated with waste cooking oil (WCO) bio-fuel and methanol. The experimental results show that this combination can significantly improve the thermal efficiency of the engine and reduce NOx and smoke emissions.
Article
Chemistry, Physical
S. Sathishkumar, M. Mohamed Ibrahim
Summary: This research investigated the impact of four different diesel injection schedules in low and medium load conditions on the performance of engines operating in hydrogen-diesel dual fuel mode. It was found that the double pulse phase-2 injection schedule increased thermal efficiency while also increasing NO emissions, whereas the multi-pulse injection schedule significantly reduced NO emissions but led to a slight increase in smoke emissions.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Thermodynamics
S. A. Alur, M. M. Shivashimpi, K. M. Akkoli, J. Samson Lsaac, N. R. Banapurmath, D. Sakthivel, Yogesh Diliprao Sonawane, Saiful Islam, Prabhakar Sharma, Mohammad Amir Khan, Abdul Razak
Summary: In this study, the exhaust gas recirculation (EGR) rate for a POME fueled CRDI diesel engine fitted with TRCC was optimized. The experiments were conducted using an RSM-based D-optimal design and the relationship between input and output was determined using ANOVA. Both RSM and ANN models accurately fit the experimental data, with high predictive accuracy. The findings suggest that this research has the potential for various applications in CI engine-powered transportation systems.
CASE STUDIES IN THERMAL ENGINEERING
(2023)
Article
Thermodynamics
Zhiyong Li, Yang Wang, Zibin Yin, Heming Geng, Rui Zhu, Xudong Zhen
Summary: This study investigates three injection strategies of methanol direct-injection method and compares the optimal settings at low load and high load. The results show differences in fuel economy and knock intensity among different injection strategies. Ultimately, M/D/M mode is found to be the best injection strategy at low load and high load.
APPLIED THERMAL ENGINEERING
(2021)
Article
Energy & Fuels
P. Pavan, K. Bhaskar, S. Sekar
Summary: The experimental investigation demonstrated that a 40% reduction in NO emission was observed by introducing 10% pilot fuel and higher injection pressure at 32°bTDC compared with single injection mode at 23°bTDC. Smoke, HC, and CO emissions were found to be lower at 34°bTDC by 26.2%, 19.2%, and 21.5% respectively, with the same strategy. A slight increase in CO2 emission by 1.62% was noticed at 500 bar injection pressure at this injection timing compared to single injection mode.
Article
Chemistry, Physical
V. T. Vimalananth, Mebin Samuel Panithasan, Gnanamoorthi Venkadesan
Summary: This study compares the effects of hydrogen addition through induction and injection methods on a CRDI diesel engine at different flow rates. The results show that hydrogen addition can reduce emissions of CO, HC, and smoke, but a higher percentage of hydrogen induction decreases efficiency, while injection technique increases efficiency. Higher calorific value and flame velocity improve combustion and enhance brake thermal efficiency while reducing energy consumption. Additionally, hydrogen addition significantly reduces emissions.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Engineering, Multidisciplinary
Huseyin Gurbuz, Tarkan Sandalci
Summary: The effects of methane intake port injection and direct diesel injection on emissions and combustion in a light-duty RCCI engine were investigated numerically. The study found that these parameters have significant impacts on performance and emissions.
ALEXANDRIA ENGINEERING JOURNAL
(2023)
Article
Energy & Fuels
Thambiran Esakki, Swaminathan Mangudi Rangaswamy, Ravikumar Jayabal
Summary: This study investigates the reticular effect of exhaust gas recirculation (EGR) on the combustion, performance, emissions, and energy characteristic of common rail direct injection (CRDI) engines fueled with leather industry waste fat biodiesel and diesel blends. The results show that the blend fuels can improve the maximum in-cylinder pressure, high heat release rate (HRR), and brake thermal efficiency (BTE), while reducing nitrogen oxides (NOx) and smoke opacity. The blend B30 with EGR 15% at full load is identified as the best operating condition for improved combustion, performance, and reduced emissions.
Article
Thermodynamics
A. V. Krishna Chaitanya, Dillip Kumar Mohanty
Summary: The depletion of fossil fuels and the increase in pollution levels have led to a greater need for alternative fuels. This study demonstrates that using a blend of waste plastic oil and 1-Pentanol in a CRDI engine can achieve comparable performance to pure diesel, while significantly reducing hazardous emissions.
Article
Environmental Studies
Habib Gurbuz, Selim Demirturk, Ismail Hakki Akcay, Husameddin Akcay
Summary: This paper investigates the impact of ethanol addition and hot exhaust gas recirculation on engine performance, exhaust emissions, and air-pollution damage-cost in a dual-fuel diesel engine. It was found that adding 40% ethanol at 1400 rpm yielded the greatest improvement in engine performance and environmental factors.
ENERGY & ENVIRONMENT
(2021)
Article
Energy & Fuels
Prem Kumar, Sarbjot Singh Sandhu
Summary: The main objective of this research was to effectively utilize n-butanol fuel in advanced combustion strategy and replace diesel fuel. An experimental study was conducted to optimize injection timings and blended fuels based on performance, emissions, and combustion characteristics. The analysis showed that adding n-butanol fuel with advanced injection timing reduced smoke emission but increased NOX emission. However, a specific blend achieved low temperature PPC mode and reduced NOX and smoke emissions compared to diesel fuel. Moreover, wavelet analysis was used to study the temporal and spectral fluctuations in partially premixed combustion.
Article
Engineering, Aerospace
Dhanalakshmi Sellan, Saravanan Balusamy
Summary: This study investigates premixed and stratified LPG/air flames on a bluff body swirl-stabilized burner. The results show that premixed flames are primarily influenced by swirl number combinations, while stratified flames are more compact and similar in shape. The arrangement of the counter-rotating coaxial swirler has a lesser effect on flame structure.
AEROSPACE SCIENCE AND TECHNOLOGY
(2022)
Article
Thermodynamics
Guguloth Mahesh Nayak, Pankaj Kolhe, Saravanan Balusamy
Summary: The experimental investigation on the unsteady effects of buoyancy-induced instabilities on jet diffusion flames reveals that the instability leads to frequency variations in diffusion flames, using methane and propane as test fuels ranging with different tube diameters. The results provide insights into the transition of instability modes in different fuels and the relationship between Strouhal and Froude numbers.
FLOW TURBULENCE AND COMBUSTION
(2022)
Article
Chemistry, Multidisciplinary
Pallavi Katre, Saravanan Balusamy, Sayak Banerjee, Kirti Chandra Sahu
Summary: We experimentally studied the evaporation behavior of water-ethanol binary droplets loaded with alumina nanoparticles on a critically inclined heated surface and compared it with the no-loading condition. We found that the critical angle for droplet sliding increases with ethanol-rich binary droplets and that the pinning effect caused by nanoparticles results in larger perimeter and surface area for the droplets, enhancing the evaporation rates and decreasing their lifetime significantly. Additionally, increasing ethanol concentration leads to complex thermosolutal Marangoni convection.
Review
Engineering, Mechanical
Kannan Chidambaram, Bragadeshwaran Ashok, Rajasekar Vignesh, Chirag Deepak, Rathan Ramesh, Tharun M. Narendhra, Kaisan Muhammad Usman, Chellapan Kavitha
Summary: This article investigates the barriers to the implementation of electric vehicles in developing countries, with a focus on consumer opinions. The lack of charging infrastructure and high overall cost are identified as the major factors hindering the adoption of electric vehicles in these countries. Therefore, it is recommended that measures and incentives be introduced to promote the growth of electric vehicles.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART D-JOURNAL OF AUTOMOBILE ENGINEERING
(2023)
Article
Thermodynamics
Thomas C. J. Renald, P. Somasundaram, M. M. Matheswaran, N. Gnanasekaran
Summary: This study focuses on improving the performance of triangular duct solar air heaters by integrating wavy fins on the absorber plate. An analytical model is developed to investigate the effects of design parameters such as fin pitch ratio and fin amplitude ratio on thermal and thermo hydraulic efficiency. The results show that increasing the fin pitch ratio drastically decreases the thermal and thermo hydraulic efficiency, while increasing the fin amplitude ratio improves the thermal efficiency and effective efficiency.
INTERNATIONAL JOURNAL OF GREEN ENERGY
(2023)
Article
Thermodynamics
Pradeep Gurrala, Saravanan Balusamy, Sayak Banerjee, Kirti Chandra Sahu
Summary: This study investigates the evaporation of pure ethanol, water, and ethanol-water binary droplets on one-dimensional cylindrical substrates using shadowgraphy and infrared imaging techniques. The results reveal different wetting behaviors of droplets on curved and flat substrates, and the three-dimensional solid modeling provides insights into the morphological evolution during evaporation.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2022)
Article
Environmental Sciences
Ashwin Jacob, Bragadeshwaran Ashok, Jino Lawrence, Arockia Suthan Soosairaj, Jayaganthan Anandan, Manoj Elango
Summary: This study aims to investigate the impact of post-injection parameters on a continuous active regeneration trap to reduce emissions. The findings suggest that adjusting the post-injection timing and mass can effectively reduce harmful emissions without sacrificing engine performance.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
A. Hari Govindha, Pallavi Katre, Saravanan Balusamy, Sayak Banerjee, Kirti Chandra Sahu
Summary: In this experimental study, we investigate the evaporation characteristics of ethanol droplets containing Al2O3 and Cu nanoparticles of different sizes. The results show that the presence of nanoparticles significantly affects the contact line dynamics of the droplets, which in turn affects the evaporation rate. This contradicts the common assumption that the higher thermal conductivity of the added nanoparticles is solely responsible for the enhanced evaporation rate.
Article
Materials Science, Multidisciplinary
T. Sathish Kumar, B. Ashok
Summary: The experimental study evaluates the material compatibility and corrosion characteristics of engine components in methanol-gasoline blends. The results show that increasing the methanol percentage intensifies the corrosiveness of fuel samples and the presence of oxygen in methanol contributes to metal corrosion. The piston exhibits lesser resistance to corrosion compared to the piston ring and valve, and corrosion attack is higher on the engine component surfaces exposed to higher methanol concentrations. Lower methanol concentrations are more suitable for SI engines due to minimal corrosiveness on engine components. Recommendations are provided to enhance the performance of engine components against methanol corrosion.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Engineering, Chemical
Pallavi Katre, Sayak Banerjee, Saravanan Balusamy, Kirti Chandra Sahu
Summary: We investigated the retention force factor of pure and binary droplets laden with alumina nanoparticles placed on an inclined substrate. The critical angle of ethanol droplet increased with nanoparticles concentration, while for water-ethanol droplets, it reached a plateau and slightly decreased after 0.6 wt% nanoparticle loading. We proposed correlations for the retention force factor and critical angle and found that evaporating droplets with nanoparticle loading exhibited richer hydrothermal waves. This study is the first attempt to investigate the retention force factor for droplets loaded with nanoparticles on an inclined substrate.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Thermodynamics
T. Sathish Kumar, B. Ashok, B. Saravanan
Summary: The evoked potentiality of an ethanol-powered DISI engine under flex-fuel mode is studied in this article. A novel approach is used to evaluate the effects of different ethanol concentrations and identify optimal operating conditions for engine performance. The results show that BTE is increased by applying ethanol, ranging from 18.27% to 27.31%. However, blended fuels lead to an increase in BSFC, with a maximum value of 398 g/kWhr recorded for 40. Furthermore, CO and HC emissions decrease by about 1.37%vol and 123 ppm, while CO2 and NOx emissions increase by approximately 13.82%vol and 496 ppm. ANOVA analysis reveals that operating variables have a significant impact on engine responses. Grey relational analysis-based multi-objective optimization is used to find suitable operating variables, with test run 1 achieving the highest efficiency and test run 16 potentially providing the best fuel economy. Test runs 23, 5, 25, and 1 show promise in improving the emissions of CO, CO2, HC, and NOx respectively.
Article
Engineering, Mechanical
R. Vignesh, A. Harikrishnan, Bragadeshwaran Ashok, M. Senthil Kumar, Rajan Malewar
Summary: Hybrid electric powertrains are the optimal choice for solving the pollution and energy crisis caused by automotive vehicles. This research incorporates intelligent control and adaptive equivalent consumption minimization strategy to improve power distribution and enhance performance and fuel efficiency of electric vehicles. Experimental results show that the suggested approach outperforms other methods in battery and energy usage as well as emissions reductions.
JOURNAL OF THE BRAZILIAN SOCIETY OF MECHANICAL SCIENCES AND ENGINEERING
(2023)
Editorial Material
Engineering, Mechanical
Dariusz Szpica, Bragadeshwaran Ashok, Hasan Koten
Article
Computer Science, Information Systems
Pemmareddy Saiteja, Bragadeshwaran Ashok, Byron Mason, S. Krishna
Summary: Switched reluctance motors (SRM) are attracting attention from the industry due to their simple construction, high reliability, and efficiency. However, controlling SRM is challenging due to its nonlinearities and variable parameters. This study proposes a novel approach combining model-in-loop and hardware-in-loop simulations to control the speed and torque of SRM. The proposed adaptive supervisory self-learning control approach (ASSC) effectively reduces speed variations and exhibits better performance compared to other control approaches. Experimentation confirms the simulation results and demonstrates the improved efficiency of SRM with the recommended ASSC controller.
Article
Energy & Fuels
SenthilKumar Muniappan, Ashok Bragadeshwaran, Nanthagopal Kasianantham, Vignesh Rajasekar, Karthick Chinnadurai, Saravanan Balusamy, Mohamed Ilyas Mohamed Ibrahim
Summary: This study evaluates the feasibility of using Nigella sativa methyl ester (NSME) as a blended fuel in a common rail direct injection engine. The experimental results show that using 20% NSME as fuel, along with an optimized injection strategy and exhaust gas recirculation, can achieve comparable performance and emission reduction as mineral diesel.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Thermodynamics
Pengcheng Zhao, Jingang Wang, Liming Sun, Yun Li, Haiting Xia, Wei He
Summary: The production of green hydrogen through water electrolysis is crucial for renewable energy utilization and decarbonization. This research explores the optimal electrode configuration and system design of compactly-assembled industrial electrolyzer. The findings provide valuable insights for industrial application of water electrolysis equipment.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
V. Baiju, P. Abhishek, S. Harikrishnan
Summary: Thermally driven adsorption desalination systems (ADS) have gained attention as an eco-friendly solution for water scarcity. However, they face challenges related to low water productivity and scalability. To overcome these challenges, integrating ADS with other desalination technologies can create a small-scale hybrid system. This study proposes integrating ADS with a Thermo Electric Dehumidification (TED) unit to enhance its performance.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
C. X. He, Y. H. Liu, X. Y. Huang, S. B. Wan, Q. Chen, J. Sun, T. S. Zhao
Summary: A decentralized centroid multi-path RC network model is constructed to improve the temperature prediction accuracy compared to traditional RC models. By incorporating multiple heat flow paths and decentralizing thermal capacity, a more accurate prediction is achieved.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Chaoying Li, Meng Wang, Nana Li, Di Gu, Chao Yan, Dandan Yuan, Hong Jiang, Baohui Wang, Xirui Wang
Summary: There is an urgent need to shift away from heavy dependence on fossil fuels and embrace renewable energy sources, particularly in the energy-intensive oil refining process. This study presents an innovative concept called the Solar Oil Refinery, which applies solar energy in oil refining. A solar multi-energies-driven hybrid chemical oil refining system that utilizes solar pyrolysis and electrolysis has been developed, significantly improving solar utilization efficiency, cracking rate, and hydrogen yield.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Chao Ma, Guanghui Wang, Dingbiao Wang, Xu Peng, Yushen Yang, Xinxin Liu, Chongrui Yang, Jiaheng Chen
Summary: This study proposes a bio-inspired fish-tail wind rotor to improve the wind power efficiency of the traditional Savonius rotor. Through transient simulations and orthogonal experiments, the key factors affecting the performance are identified. A response surface model is constructed to optimize the power coefficient, resulting in an improvement of 9.4% and 6.6% compared to the Savonius rotor.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Sina Bahmanziari, Abbas-Ali Zamani
Summary: This paper proposes a new framework for improving electrical energy harvesting from piezoelectric smart tiles through a combination of magnetic plucking, mechanical impact, and mechanical vibration force mechanisms. Experimental results demonstrate a significant increase in energy yield and average energy harvesting time compared to other mechanisms.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Nanjiang Dong, Tao Zhang, Rui Wang
Summary: This study establishes a multiobjective mixed-variable configuration optimization model for a comprehensive combined cooling, heating, and power energy system, and proposes an efficient generating operator to optimize this model. The experimental results show that the proposed algorithm performs better than other state-of-the-art algorithms.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Ahmed E. Mansy, Eman A. El Desouky, Tarek H. Taha, M. A. Abu-Saied, Hamada El-Gendi, Ranya A. Amer, Zhen-Yu Tian
Summary: This study aims to convert office paper waste into bioethanol through a sustainable pathway. The results show that physiochemical and enzymatic hydrolysis of the waste can yield a high glucose concentration. The optimal conditions were determined using the Box-Behnken design, and a blended membrane was used for ethanol purification.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Sven Klute, Marcus Budt, Mathias van Beek, Christian Doetsch
Summary: Heat pumps are crucial for decarbonizing heat supply, and steam generating heat pumps have the potential to decarbonize the industrial sector. This paper presents the current state, technical and economic data, and modeling principles of steam generating heat pumps.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Le Zhang, To-Hung Tsui, Yen Wah Tong, Pruk Aggarangsi, Ronghou Liu
Summary: This study investigates the effectiveness of a current-carrying-coil-based magnetic field in promoting anaerobic digestion of chicken manure. The results show that the applied magnetic field increases methane yield, decreases carbon dioxide production, and reduces the concentration of ammonia nitrogen. Microbial community analysis reveals the enrichment of certain methanogenic genera and enhanced metabolic pathways. Pilot-scale experiments confirm the technical effectiveness of the magnetic field assistance in enhancing anaerobic digestion of chicken manure.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Bo Chen, Ruiqing Ma, Yang Zhou, Rui Ma, Wentao Jiang, Fan Yang
Summary: This paper presents an advanced energy management strategy for fuel cell hybrid electric heavy-duty vehicles, focusing on speed planning and energy allocation. By utilizing predictive co-optimization control, this strategy ensures safe inter-vehicle distance and minimizes energy demand. Simulation results demonstrate the effectiveness of the proposed method in reducing fuel cell degradation cost and overall operation cost.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Fabio Fatigati, Roberto Cipollone
Summary: Organic Rankine Cycle-based microcogeneration systems that use solar sources to generate electricity and hot water can help reduce CO2 emissions in residential energy-intensive sectors. The adoption of a recuperative heat exchanger in these systems improves efficiency, reduces thermal power requirements, and saves on electricity costs.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Lipeng He, Renwen Liu, Xuejin Liu, Xiaotian Zheng, Limin Zhang, Jieqiong Lin
Summary: This research proposes a piezoelectric-electromagnetic hybrid energy harvester (PEHEH) for low-frequency wave motion and self-sensing wave environment monitoring. The PEHEH shows promising power output and the ability to self-power and self-sense the wave environment.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Shangling Chu, Yang Liu, Zipeng Xu, Heng Zhang, Haiping Chen, Dan Gao
Summary: This paper studies a distributed energy system integrated with solar and natural gas, analyzes the impact of different parameters on its energy utilization and emissions reduction, and obtains the optimal solution through an optimization algorithm. The results show that compared to traditional separation production systems, this integrated system achieves higher energy utilization and greater reduction in carbon emissions.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Qingpu Li, Yaqi Ding, Guangming Chen, Yongmei Xuan, Neng Gao, Nian Li, Xinyue Hao
Summary: This paper proposes and studies a piston-type thermally-driven pump with a structure similar to a linear compressor, aiming to eliminate the high-quality energy consumption of existing pumps and replace mechanical pumps. The coupling mechanism of working fluid flow and element dimension is analyzed based on force analysis, and experimental data analysis is used to determine the pump operation stroke. Theoretical simulation is conducted to analyze the correlation mechanism of the piston assembly. The research shows that the thermally-driven pump can greatly reduce power consumption and has potential for industrial applications.
ENERGY CONVERSION AND MANAGEMENT
(2024)
