Article
Energy & Fuels
Praveen Ramesh, Sathya Vivekanandan, Sivaramakrishnan, D. Prakash
Summary: By using canola oil blended fuel and aluminum oxide nanoparticles, optimization techniques effectively improve the combustion and emission performance of a diesel engine. Parameters such as canola oil blend percentage, nanoparticles concentration, fuel injection pressure, and fuel injection timing were considered in the optimization process, leading to the identification of the best value combination.
Article
Thermodynamics
Umit Agbulut, Suat Saridemir, Upendra Rajak, Fikret Polat, Asif Afzal, Tikendra Nath Verma
Summary: The addition of CuO nanoparticles to diesel fuel can improve combustion efficiency, reduce emissions, increase fuel heating value, decrease fuel consumption, and enhance thermal efficiency. CuO additives lead to lower CO, HC, and NOx emissions, along with improved combustion characteristics and engine performance.
Article
Thermodynamics
Mustafa Karagoz, Cuneyt Uysal, Umit Agbulut, Suat Saridemir
Summary: In this study, comprehensive exergetic and exergoeconomic analyses were conducted on a single-cylinder, four-stroke diesel engine. Different nanofuels were tested at varying engine loads, with D90B10Al(2)O(3) showing the highest exergy efficiency and sustainability index values. Al2O3-doped nanofuel emerged as the best test fuel in terms of exergy, exergoeconomics, and sustainability analyzes.
Article
Thermodynamics
Dhanesh Chandrasekaran, Venkatesan Jayaraman, Suseel Jai Krishnan Sasidharan, Sankaranarayanan Gomathinayagam
Summary: Adding magnesia nanoflakes can improve fuel properties, enhance engine performance, and reduce emissions.
JOURNAL OF THERMAL SCIENCE AND TECHNOLOGY
(2021)
Article
Green & Sustainable Science & Technology
Mayur Shete, Harshad Deshpande, Sameer Bhosale
Summary: This study investigates the performance and emission parameters of a hybrid biodiesel fuel made from Hibiscus and Coconut oil. The B20 blend, consisting of 20% hybrid biodiesel and 80% diesel, shows the highest thermal efficiency and lower HC and CO emissions in diesel engines.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2022)
Review
Thermodynamics
M. Moorthi, A. Murugesan, Avinash Alagumalai
Summary: This study discusses converting non-edible oils into diesel engine fuel, reviews methods of preparing nanoparticles and their effects when doped with biodiesel-diesel blends on engine performance, combustion parameters, and emission characteristics. The review indicates that nanoparticles improve engine performance and reduce emissions, making them an eco-friendly fuel technology for diesel engines.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
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
Environmental Sciences
Senthil Kumar Srinivasan, Rajan Kuppusamy, Purushothaman Krishnan
Summary: The research investigates the combustion, performance, and emission characteristics of a CI engine using neat biodiesel mixed with alumina and titanium oxide nanoparticles. The addition of nanoparticles resulted in increased brake thermal efficiency, reduced brake-specific fuel consumption, and decreased CO, HC, and smoke emissions, while NOx emissions increased compared to neat biodiesel.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Engineering, Multidisciplinary
Chinmoy Jit Sarma, Prabhakar Sharma, Bhaskor Jyoti Bora, Dilip K. Bora, Natarajan Senthilkumar, Deepanraj Balakrishnan, Ahmad I. Ayesh
Summary: Dwindling air quality and fossil fuel reserves have prompted the need for alternative fuel sources. Biodiesel from animal/plant sources appears to be a viable substitute, although it has some drawbacks. One potential solution is the use of nano-based biodiesel in internal combustion engines, with the addition of Titanium oxide nanoparticles. This study shows that the nanoparticle-based blended biodiesel has significantly reduced emissions compared to diesel fuel.
ALEXANDRIA ENGINEERING JOURNAL
(2023)
Article
Energy & Fuels
S. Thiruvenkatachari, C. G. Saravanan, V. Edwin Geo, M. Vikneswaran, R. Udayakumar, Fethi Aloui
Summary: Currently, India is working on reducing its oil import dependency from 84% to 67% by 2022, and the research on biodiesel as an alternative fuel source is crucial. The study suggests that azolla microphylla plant could be a potential feedstock for biodiesel production, but biodiesel blends show higher viscosity which affects combustion efficiency in engines.
Article
Optics
Yang-Yi Huang, Zong-Han Li, Yi-Cheng Lai, Jun-Chen Chen, Shung-Hsiang Wu, Shaobo Yang, Yang Kuo, Chih-Chung Yang, Ta-Cheng Hsu, Chi-Ling Lee
Summary: The nanoscale-cavity effect significantly increases the emission efficiency of inserted QDs and enhances the FRET efficiency, particularly for radiating dipoles in QWs oriented perpendicular to the sidewalls of the nano-holes. This effect modifies the radiation behavior of light emitters inside a nano-hole through the Purcell effect, resulting in stronger far-field emission.
Article
Thermodynamics
S. H. Pourhoseini, Maryam Ghodrat
Summary: Experimental results show that adding Al2O3 nanoparticles to palm oil biodiesel blend enhances the evaporation rate of droplets and shifts the maximum flame temperature upstream. The nanoparticles scatter heat, accelerating heat transfer and lowering temperature, while also increasing intermediate soot particles in the flame reaction zone to enhance luminosity and radiation heat transfer.
CASE STUDIES IN THERMAL ENGINEERING
(2021)
Article
Green & Sustainable Science & Technology
Kemal Masera, Abul K. Hossain, Philip A. Davies, Khalid Doudin
Summary: This study investigated the effects of adding 2-butoxyethanol to waste cooking oil biodiesel and rapeseed oil biodiesel, finding that the blended fuels had reduced viscosity, increased thermal efficiency, shorter combustion duration, higher in-cylinder peak pressures, and reduced emissions of pollutants.
Article
Agricultural Engineering
Babalola Aisosa Oni, Samuel Eshorame Sanni, Anayo Jerome Ibegbu, Tomiwa Isaac Oguntade
Summary: By adding nanoparticles to biodiesel, engine performance and combustion characteristics can be improved, and emissions can be reduced.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Energy & Fuels
Xiaoyang Yu, Binyang Wu, Wanhua Su
Summary: By studying the cooperative control of minimum charge density, compressor efficiency, and compressor pressure ratio distribution, the simultaneous optimization of the mixing process and the gas exchange process can be achieved to improve the brake thermal efficiency of a heavy-duty diesel engine.
Article
Chemistry, Physical
P. Dinesha, Sooraj Mohan, Shiva Kumar
Summary: This study experimentally investigates the characteristics of spark ignition (SI) engine using gasoline blended with Acetone-Butanol-Ethanol (ABE) as hydrogen and oxygen carriers. A multi-objective optimization technique, Particle Swarm Optimization (PSO), is used to optimize the engine performance and emission parameters. The results show that by controlling the blend percentage and speed, the engine can achieve optimal combustion efficiency and emission performance.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Sooraj Mohan, P. Dinesha, V. Aiswarya
Summary: This study investigates the combined synergetic influence of H2O2 emulsification and the addition of multi-walled carbon nanotubes (MWCNT) on the exhaust emissions and performance of a compression ignition engine. The results show that increasing the concentrations of H2O2 and MWCNT has a positive effect on reducing CO, HC, and smoke emissions, as well as improving brake thermal efficiency and reducing brake specific fuel consumption. However, the increase in MWCNT concentration leads to an increase in NOx emissions, while H2O2 emulsification has an inhibitory effect on NOx.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Thermodynamics
Sooraj Mohan, P. Dinesha
Summary: In this study, hydrogen peroxide was used as an emulsifier in waste cooking oil biodiesel blend and its impact on emissions and performance in a compression ignition engine was assessed. The results showed that the addition of hydrogen peroxide improved fuel properties and reduced NOx emissions. However, higher concentrations of hydrogen peroxide resulted in vapor lock in the fuel pump. Compared to the pure biodiesel blend, the emulsified fuel with a hydrogen peroxide concentration of 1.5% showed significant reductions in CO, HC, smoke, and NOx emissions, as well as improved thermal efficiency and fuel consumption.
Article
Chemistry, Multidisciplinary
Sooraj Mohan, P. Dinesha
Summary: In this experimental study, the thermal dissociation of ammonium carbonate is investigated using nonisothermal thermogravimetric analysis. The study provides insights into the thermal decomposition characteristics and reaction kinetics of ammonium carbonate.
Article
Chemistry, Physical
Augustine B. Barboza, Sooraj Mohan, P. Dinesha
Summary: This study investigates the impact of hydrogen peroxide (H2O2) concentration on the emissions and performance of spark ignition (SI) engines. The results show that adding 1.5% H2O2 to the engine can significantly reduce CO and HC emissions, as well as NOx emissions. Moreover, emulsifying gasoline with H2O2 also improves the thermal efficiency and fuel consumption of the engine.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Thermodynamics
Sooraj Mohan, P. Dinesha, Pietro Elia Campana
Summary: In this study, a design of experiments approach and artificial neural network modeling were used to optimize the working fluid selection for organic Rankine cycle (ORC), resulting in the identification of the optimal working fluid and its corresponding performance.
Article
Environmental Sciences
Augustine B. V. Barboza, Sooraj Mohan, P. Dinesha
Summary: Ethanol blending for gasoline can reduce emissions without affecting engine performance, while emulsifying fuel with hydrogen peroxide can significantly reduce emissions in a compression ignition engine. The study used experimental data to model the relationship between input factors and output responses, and optimized the models using a multi-objective particle swarm optimization algorithm.
ENVIRONMENTAL POLLUTION
(2022)
Article
Construction & Building Technology
Shiva Kumar, Girish Hariharan, Muhammad Fayaz, Nitesh Kumar
Summary: With advancements in science and technology, indoor comfort has become a major concern. However, this has led to increased greenhouse gas emissions and energy consumption. Desiccant-coated heat exchangers provide a common solution to these issues, and the present study investigated the performance of a solid composite desiccant blend made from coconut shell-based activated carbon and bio char. By cooling the desiccant-coated heat exchangers with cerium oxide nanofluid, and varying parameters such as air velocity, water flow rate, and nanoparticle concentration, it was found that performance parameters such as moisture removal rate and dehumidification efficiency were enhanced. The addition of nanoparticles, especially at 0.3% concentration, showed significant improvement in moisture removal rate and dehumidification efficiency.
Article
Environmental Sciences
K. R. Deepak, Sooraj Mohan, P. Dinesha, Rajasekhar Balasubramanian
Summary: For the first time, activated hydrochar was prepared from orange peel waste using KOH for potential environmental applications. The impact of hydrothermal carbonization temperature on the CO2 adsorption capacity of the activated hydrochar was investigated. The results showed that the activated hydrochar had high microporosity and various functional groups, making it suitable for effective adsorption. The highest CO2 uptake was observed for the hydrochar produced at a temperature of 220°C.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Engineering, Multidisciplinary
Sooraj Mohan, Augustine B. V. Barboza, P. Dinesha
Summary: The present study aims to assess the performance and emissions of a compression ignition (CI) engine fueled with B20 biodiesel and nano additives. The results show that B20 fuel with MWCNT nanoparticles performs better in terms of brake thermal efficiency (BTE), brake-specific fuel consumption, and reduced HC and CO emissions, but has increased NOx emissions. On the other hand, activated biochar nanoparticles improve the BTE of the engine and reduce NOx emissions.
COGENT ENGINEERING
(2023)
Article
Environmental Sciences
Augustine B. V. Barboza, Pijakala Dinesha, Marc A. A. Rosen
Summary: The influence of epoxidised gingelly oil methyl ester biolubricant with alumina (Al2O3) nanoparticles on the performance and emissions of a single cylinder engine driven by gingelly B20 biodiesel is assessed. The results show that the use of epoxidised gingelly methyl ester (B100E) with 1.0% w/w alumina (Al2O3) nanoparticle biolubricant can significantly improve brake thermal efficiency and reduce emissions. This study suggests that further research on green fuel-green lubricant combinations is warranted, and the findings address the United Nations Sustainable Development Goals (SDGs) 7 and 13.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Engineering, Multidisciplinary
Shiva Kumar, Pijakala Dinesha
Summary: The study demonstrates that waste cooking oil (WCO) biodiesel blended with cerium oxide (CeO2) nanoparticles as additives improves engine performance, reduces emissions of smoke and harmful gases, and enhances fuel efficiency.
COGENT ENGINEERING
(2021)
Article
Energy & Fuels
Shiva Kumar, P. Dinesha, Naomon Khan
Summary: The study explores the use of CeO2 nanoparticles to improve engine performance and reduce emissions in a diesel engine running on B20 biodiesel blend. Results show that adding CeO2 nanoparticles can lead to enhanced engine performance and reduced tail pipe emissions, with the best performance observed at 80 ppm CeO2 and significant emission reduction at 120 ppm CeO2.
INTERNATIONAL JOURNAL OF RENEWABLE ENERGY RESEARCH
(2021)
Article
Engineering, Multidisciplinary
Pijakala Dinesha, Sooraj Mohan, Shiva Kumar
Summary: Biofuels, such as biodiesel extracted from waste cooking oil, are being blended with diesel and studied for their impact on engine combustion and emissions. The addition of cerium oxide and aluminum oxide nanoparticles in the B20 fuel blend led to smoother combustion and reduced exhaust emissions. The best fuel blend with 50 ppm of CeO2 and 30 ppm of Al2O3 nanoparticles showed significant reductions in CO, HC, NOx, and smoke emissions compared to neat B20 operation.
COGENT ENGINEERING
(2021)
Article
Thermodynamics
Shiva Kumar, Pijakala Dinesha
Summary: The study optimized the dimensions of cylindrical turbulators in a double pipe heat exchanger to achieve the highest thermal performance. Numerical simulations showed that the Nusselt number (Nu), friction factor (f), and thermohydraulic performance index (THPI) increased with increasing Re and turbulator diameter.
Article
Thermodynamics
Yong Cheng, Fukai Song, Lei Fu, Saishuai Dai, Zhiming Yuan, Atilla Incecik
Summary: This paper investigates the accessibility of wave energy absorption by a dual-pontoon floating breakwater integrated with hybrid-type wave energy converters (WECs) and proposes a hydraulic-pneumatic complementary energy extraction method. The performance of the system is validated through experiments and comparative analysis.
Article
Thermodynamics
Jing Gao, Chao Wang, Zhanwu Wang, Jin Lin, Runkai Zhang, Xin Wu, Guangyin Xu, Zhenfeng Wang
Summary: This study aims to establish a new integrated method for biomass cogeneration project site selection, with a focus on the application of the model in Henan Province. By integrating Geographic Information System and Multiple Criterion Decision Making methods, the study conducts site selection in two stages, providing a theoretical reference for the construction of biomass cogeneration projects.
Article
Thermodynamics
Mert Temiz, Ibrahim Dincer
Summary: The current study presents a hybrid small modular nuclear reactor and solar-based system for sustainable communities, integrating floating and bifacial photovoltaic arrays with a small modular reactor. The system efficiently generates power, hydrogen, ammonia, freshwater, and heat for residential, agricultural, and aquaculture facilities. Thermodynamic analysis shows high energy and exergy efficiencies, as well as large-scale ammonia production meeting the needs of metropolitan areas. The hybridization of nuclear and solar technologies offers advantages of reliability, environmental friendliness, and cost efficiency compared to renewable-alone and fossil-based systems.
Editorial Material
Thermodynamics
Wojciech Stanek, Wojciech Adamczyk
Article
Thermodynamics
Desheng Xu, Yanfeng Li, Tianmei Du, Hua Zhong, Youbo Huang, Lei Li, Xiangling Duanmu
Summary: This study investigates the optimization of hybrid mechanical-natural ventilation for smoke control in complex metro stations. The results show that atrium fires are more significantly impacted by outdoor temperature variations compared to concourse/platform fires. The gathered high-temperature smoke inside the atrium can reach up to 900 K under a 5 MW train fire energy release. The findings provide crucial engineering insights into integrating weather data and adaptable ventilation protocols for smoke prevention/mitigation.
Article
Thermodynamics
Da Guo, Heping Xie, Mingzhong Gao, Jianan Li, Zhiqiang He, Ling Chen, Cong Li, Le Zhao, Dingming Wang, Yiwei Zhang, Xin Fang, Guikang Liu, Zhongya Zhou, Lin Dai
Summary: This study proposes a new in-situ pressure-preserved coring tool and elaborates its pressure-preserving mechanism. The experimental and field test results demonstrate that this tool has a high pressure-preservation capability and can maintain a stable pressure in deep wells. This study provides a theoretical framework and design standards for the development of similar technologies.
Article
Thermodynamics
Aolin Lai, Qunwei Wang
Summary: This study assesses the impact of China's de-capacity policy on renewable energy development efficiency (REDE) using the Global-MSBM model and the difference-in-differences method. The findings indicate that the policy significantly enhances REDE, promoting technological advancements and marketization. Moreover, regions with stricter environmental regulations experience a higher impact.
Article
Thermodynamics
Mostafa Ghasemi, Hegazy Rezk
Summary: This study utilizes fuzzy modeling and optimization to enhance the performance of microbial fuel cells (MFCs). By simulating and analyzing experimental data sets, the ideal parameter values for increasing power density, COD elimination, and coulombic efficiency were determined. The results demonstrate that the fuzzy model and optimization methods can significantly improve the performance of MFCs.
Article
Thermodynamics
Zhang Ruan, Lianzhong Huang, Kai Wang, Ranqi Ma, Zhongyi Wang, Rui Zhang, Haoyang Zhao, Cong Wang
Summary: This paper proposes a grey box model for fuel consumption prediction of wing-diesel hybrid vessels based on feature construction. By using both parallel and series grey box modeling methods and six machine learning algorithms, twelve combinations of prediction models are established. A feature construction method based on the aerodynamic performance of the wing and the energy relationship of the hybrid system is introduced. The best combination is obtained by considering the root mean square error, and it shows improved accuracy compared to the white box model. The proposed grey box model can accurately predict the daily fuel consumption of wing-diesel hybrid vessels, contributing to operational optimization and the greenization and decarbonization of the shipping industry.
Article
Thermodynamics
Huayi Chang, Nico Heerink, Junbiao Zhang, Ke He
Summary: This study examines the interaction between off-farm employment decisions between couples and household clean energy consumption in rural China, and finds that two-paycheck households are more likely to consume clean energy. The off-farm employment of women is a key factor driving household clean energy consumption to a higher level, with wage-employed wives having a stronger influence on these decisions than self-employed ones.
Article
Thermodynamics
Hanguan Wen, Xiufeng Liu, Ming Yang, Bo Lei, Xu Cheng, Zhe Chen
Summary: Demand-side management is crucial to smart energy systems. This paper proposes a data-driven approach to understand the relationship between energy consumption patterns and household characteristics for better DSM services. The proposed method uses a clustering algorithm to generate optimal customer groups for DSM and a deep learning model for training. The model can predict the possibility of DSM membership for a given household. The results demonstrate the usefulness of weekly energy consumption data and household socio-demographic information for distinguishing consumer groups and the potential for targeted DSM strategies.
Article
Thermodynamics
Xinglan Hou, Xiuping Zhong, Shuaishuai Nie, Yafei Wang, Guigang Tu, Yingrui Ma, Kunyan Liu, Chen Chen
Summary: This study explores the feasibility of utilizing a multi-level horizontal branch well heat recovery system in the Qiabuqia geothermal field. The research systematically investigates the effects of various engineering parameters on production temperature, establishes mathematical models to describe their relationships, and evaluates the economic viability of the system. The findings demonstrate the significant economic feasibility of the multi-level branch well system.
Article
Thermodynamics
Longxin Zhang, Songtao Wang, Site Hu
Summary: This investigation reveals the influence of tip leakage flow on the modern transonic rotor and finds that the increase of tip clearance size leads to a decline in rotor performance. However, an optimal tip clearance size can extend the rotor's stall margin.
Article
Thermodynamics
Kristian Gjoka, Behzad Rismanchi, Robert H. Crawford
Summary: This paper proposes a framework for assessing the performance of 5GDHC systems and demonstrates it through a case study in a university campus in Melbourne, Australia. The results show that 5GDHC systems are a cost-effective and environmentally viable solution in mild climates, and their successful implementation in Australia can create new market opportunities and potential adoption in other countries with similar climatic conditions.
Article
Thermodynamics
Jianwei Li, Guotai Wang, Panpan Yang, Yongshuang Wen, Leian Zhang, Rujun Song, Chengwei Hou
Summary: This study proposes an orientation-adaptive electromagnetic energy harvester by introducing a rotatable bluff body, which allows for self-regulation to cater for changing wind flow direction. Experimental results show that the output power of the energy harvester can be greatly enhanced with increased rotatory inertia of the rotating bluff body, providing a promising solution for harnessing wind-induced vibration energy.
