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
Green & Sustainable Science & Technology
Ye Liu, Sijin Wu, Haibo Chen, Matteo Federici, Guido Perricone, Ying Li, Gang Lv, Said Munir, Zhiwen Luo, Baohua Mao
Summary: This study investigates the PM10 emissions from a medium-sized passenger vehicle's front brake wear using finite element analysis and experimental methods. The simulation results show good agreement with the measured values, indicating the potential of the proposed simulation approach in predicting brake wear PM10 emissions. The machine learning method highlights the importance of factors such as dissipation energy and initial braking speed in contributing to brake wear PM10 emissions. The findings suggest that limiting severe braking and high-speed braking has the potential to reduce PM10 emissions from brake wear.
JOURNAL OF CLEANER PRODUCTION
(2022)
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)
Article
Environmental Sciences
Ye Liu, Haibo Chen, Chuhan Yin, Matteo Federici, Guido Perricone, Ying Li, Dimitris Margaritis, Yang Shen, Junhua Guo, Tangjian Wei
Summary: This study investigated PM10 emissions generated from brake wear of passenger cars during different driving cycles using a finite element analysis approach. The results showed that the proposed simulation approach could predict PM10 emissions from brake wear, and there was a gradient rise in pad wear from the inner to outer radii. Furthermore, reducing the frequency of high-speed braking was found to be an effective way to decrease PM10 emissions.
Article
Thermodynamics
Siraj Sayyed, Randip Kumar Das, Kishor Kulkarni
Summary: The research focuses on evaluating the performance, combustion, and emissions characteristics of a DICI engine fueled with dual biodiesel blends, produced from non-edible bio-oils. The study found differences in performance and emissions compared to neat diesel, with certain blends showing potential for reducing CO emissions.
Article
Thermodynamics
Hanbey Hazar, Tugay Telceken, Huseyin Sevinc
Summary: In this study, safflower methyl ester (SME) was obtained from safflower seed oil for a CI engine through transesterification, which showed promising results in terms of emissions reduction compared to diesel fuel. However, improvements are still needed in terms of fuel efficiency and NOx emissions.
Article
Environmental Sciences
William Hicks, David C. Green, Sean Beevers
Summary: As vehicle fleets transition from ICE to electric powertrains, the study predicts that regenerative braking systems can reduce brake wear emissions by 64% to 95%. This supports the shift towards electric and hybrid vehicle fleets to reduce brake wear emissions.
ENVIRONMENTAL POLLUTION
(2023)
Article
Energy & Fuels
Yequan Sheng, Kathirvel Brindhadevi, Emad M. Eed, Changlei Xia, Nguyen Thuy Lan Chi
Summary: The study focused on using Citrullus colocynthis L. seeds as a source for biofuel production, testing different fuel combinations in an engine to reduce emissions, particularly CO and HC.
Article
Chemistry, Physical
Thangaraja Jeyaseelan, Nivin Chacko, N. Pushyanth, O. Siva Murali Krishna, Jim Alexander, E. Porpatham
Summary: The study explores the possibility of supplementing hydrogen with fossil or biofuels in internal combustion engines. By using hydrogen induction and partially hydrogenating biodiesel, the research aims to mitigate emissions and increase fuel efficiency. Results show that hydrogen induction and hydrogenated biodiesel effectively improve engine performance and reduce emissions compared to traditional biodiesel blends.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Environmental Sciences
Mallesh B. Sanjeevannavar, N. R. Banapurmath, Manzoore Elahi M. Soudagar, Vinay Atgur, Nazia Hossain, M. A. Mujtaba, T. M. Yunus Khan, B. Nageswar Rao, Khadiga Ahmed Ismail, Ashraf Elfasakhany
Summary: The experimental study examines the impact of biodiesel produced from Jatropha oil on engine performance and emissions. The addition of hydrogen peroxide as a fuel additive improves combustion efficiency and reduces emissions. Specific fuel blends show significant improvements in brake thermal efficiency and reductions in emissions compared to conventional diesel blends.
Article
Energy & Fuels
Alireza Shirneshan, Seyed Amin Bagherzadeh, Gholamhassan Najafi, Rizalman Mamat, Mohamed Mazlan
Summary: The research investigated the combined effects of biodiesel-ethanol fuel blends on a diesel engine's performance and emission parameters using response surface methodology. Results showed that increasing ethanol in the fuel mixture decreased brake power and torque, while improving BSFC. Higher ethanol percentage led to reduced smoke and NOx emissions, while higher biodiesel percentage reduced CO emissions. Genetic algorithm optimization showed optimal conditions with 94.65% biodiesel, 2800 RPM, and 65.75% engine load. Ethanol was found to be more effective in improving emission characteristics than performance characteristics.
Article
Thermodynamics
Selvaraj Manickam, Senthilkumar Pachamuthu, Santosh Chavan, Sung Chul Kim
Summary: This study aims to use biodiesel as a fuel in diesel engines and proposes a water-emulsion technique. Pongamia biodiesel fuel blend proportions were considered, specifically B20, B40, B60, B80, and B100, by varying the surfactant rates at 1% and 2%. Emulsions of Pongamia biodiesel and water blends were prepared by varying the surfactant rates at 1% and 2%, and water at 5%, 10%, and 15%, respectively. The analysis of biodiesel outcomes and emission features in the CI engine was done using a Neural Network (NN). Emulsions with B100W10S2 had higher specific fuel consumption than other fuels, while B20W5S2 had lower smoke emissions compared to diesel fuel.
CASE STUDIES IN THERMAL ENGINEERING
(2023)
Article
Green & Sustainable Science & Technology
Divya Bojaraj, Aryasomayajula Venkata Satya Lakshmi Sai Bharadwaj, Meera Sheriffa Begum Khadhar Mohamed, Anantharaman Narayanan
Summary: In this study, a modified heterogeneous base catalyst Al(NO3)(3)/calcined marble was used to successfully convert Karanja oil to biodiesel through transesterification, achieving high yields and conversion rates under optimal conditions.
ENVIRONMENTAL PROGRESS & SUSTAINABLE 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
Thermodynamics
Mehmet Zerrakki Isik
Summary: The experiments in the article showed that adding alcohols to biodiesel fuel can increase fuel consumption, but blending specific quantities of heavy alcohols with biodiesel can significantly improve engine brake thermal efficiency, combustion, and reduce emissions.
APPLIED THERMAL ENGINEERING
(2021)
Article
Energy & Fuels
Roshan Raman, Naveen Kumar
Summary: This study investigates the effect of induction length on acetylene fueled CI engine. The results show that the optimum length for acetylene induction is 50 cm, which provides better performance in terms of load, combustion efficiency, and exhaust emissions.
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
(2023)
Article
Energy & Fuels
Sunil Kumar Mahla, Kulwinder Singh Parmar, Jujhar Singh, Amit Dhir, Sarbjot Singh Sandhu, Bhupendra Singh Chauhan
Summary: Biomass-derived biogas has great potential as an alternative energy source due to its renewable and clean combustion characteristics. The autoregressive integrated moving average (ARIMA) model is used to forecast emissions and performance characteristics, showing high accuracy. Experimental results indicate lower emissions of NOx and smoke opacity, but increased emissions of CO, CO2, and HC compared to diesel counterparts, as well as a decrease in brake thermal efficiency. This study highlights the potential of biogas-diesel dual-fuel combustion mode under different operating conditions.
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
(2023)
Review
Energy & Fuels
Sunil Kumar Mahla, Geetesh Goga, Haeng Muk Cho, Amit Dhir, Bhupendra Singh Chauhan
Summary: This review article evaluates the impact of biodiesel, n-butanol, and biogas on the performance and emission characteristics of diesel engines. The study finds that these alternative fuels can enhance engine performance and reduce harmful emissions.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Article
Green & Sustainable Science & Technology
Ankit Sonthalia, Naveen Kumar, Mukul Tomar, Varuvel Edwin Geo, Subramanian Thiyagarajan, Arivalagan Pugazhendhi
Summary: Energy is crucial for the economic development of any country, but developing countries often rely on imported oil. However, the fluctuating oil prices and environmental concerns associated with fossil fuels are major issues. To address these problems, developing countries have started investing in solar and wind power, and are exploring hydrogen and methanol as future energy resources.
CLEAN TECHNOLOGIES AND ENVIRONMENTAL POLICY
(2023)
Article
Psychiatry
Prakyath R. Hegde, Guru S. Gowda, Bhavika Vajawat, Vinay Basavaraju, Sydney Moirangthem, Channaveerachari Naveen Kumar, Suresh Bada Math
Summary: This study examined medication delivery practices adopted by caregivers for patients with severe mental illness (SMI) in India. Covert administration of medication (CoAdM) was found to be a common practice, with 32.0% of SMI patients having received CoAdM at some point. Other strategies used by caregivers included pleading, lying, and threatening. Male gender, absent insight, and poor medication adherence were significantly associated with CoAdM in the past year. Caregivers perceived significant improvements in various aspects of patients' lives after CoAdM, including self-care, interpersonal relationships, work, family functioning, problem behaviors, and dependency.
INTERNATIONAL JOURNAL OF SOCIAL PSYCHIATRY
(2023)
Article
Psychology
S. Visalakshi, V Prateek, S. Kamaldeep, Patley Rahul, Sharad Philip, B. Vinay, N. Manjunatha, C. K. Naveen, Suresh Bada Math
INDIAN JOURNAL OF PSYCHOLOGICAL MEDICINE
(2023)
Article
Health Policy & Services
P. Lakshmi Nirisha, Barikar C. Malathesh, Nithesh Kulal, Nisha R. Harshithaa, Ferose Azeez Ibrahim, Satish Suhas, N. Manjunatha, Channaveerachari Naveen Kumar, Rajani Parthasarathy, Adarsha Alur Manjappa, Jagadisha Thirthalli, Prabhat Kumar Chand, Sanjeev Arora, Suresh Bada Math
Summary: Mental health task shifting is a potential way to address the treatment gap for mental illness. In this study, the impact of hybrid training of grassroot level health workers was evaluated. The results showed that mentoring ASHAs through online sessions had a more positive effect on their knowledge, attitude, and practices in mental health compared to traditional one-day training.
COMMUNITY MENTAL HEALTH JOURNAL
(2023)
Article
Psychology
Manjunatha B. Kondapura, Narayana Manjunatha, Anil Kumar Mysore Nagaraj, Samir Kumar Praharaj, Channaveeraachari Naveen Kumar, Suresh Bada Math, Girish N. Rao
Summary: This study examined the cost of illness and disability of patients with common mental disorders in India. The findings indicate that these disorders result in a significant financial burden, predominantly due to indirect costs, and are associated with a mild level of disability.
INDIAN JOURNAL OF PSYCHOLOGICAL MEDICINE
(2023)
Review
Psychology
Bhavika Vajawat, Channaveerachari Naveen Kumar, Prakyath Hegde, Sydney Moirangthem, Vinay Basavaraju, Vasuki Prathyusha, Binukumar Bhaskarapillai, Suresh Bada Math, Pratima Murthy
Summary: The relationship between imprisonment and mental illness is bidirectional. A study conducted on male inpatients under judicial custody with charges of homicide found that the clinical outcomes of prisoners with mental illness seem promising, subject to the seamless availability of services.
INDIAN JOURNAL OF PSYCHOLOGICAL MEDICINE
(2023)
Article
Psychology
Swati Ravindran, Prabhu Jadhav, Sharad Philip, Chethan Basavarajappa, Channaveerachari Naveen Kumar, Jagadisha Thirthalli, Thanapal Sivakumar
Summary: This study analyzed the assessment of disability due to mental illness in India and found that it is feasible for India to shift from using IDEAS to WHODAS. After removing the influence of duration, both hospital and community-based samples show a cutoff score of 24.
INDIAN JOURNAL OF PSYCHOLOGICAL MEDICINE
(2023)
Article
Thermodynamics
Tao Hai, Masood Ashraf Ali, As'ad Alizadeh, Sattam Fahad Almojil, Abdulaziz Ibrahim Almohana, Bhupendra Singh Chauhan, Abdulrhman Fahmi Alali, Amir Raise
Summary: This research presents a polygeneration system to recover waste heat from a biomass fuel-driven externally-fired gas turbine cycle. The waste heat is utilized in a supercritical Brayton cycle for more power generation, as well as an organic Rankine cycle and a hot water unit. The power generated in the organic Rankine cycle is used for freshwater production in a reverse osmosis desalination system. The system can generate electricity, heating, cooling, hydrogen, and freshwater, with improved efficiency and environmental impact.
APPLIED THERMAL ENGINEERING
(2023)
Article
Thermodynamics
Tao Hai, Mohammad Zoghi, Hooman Abed, Bhupendra Singh Chauhan, Ahmed Najat Ahmed
Summary: This study combines an absorption chiller and a proton exchange membrane fuel cell (PEMFC) with the organic flash cycle (OFC) to improve its performance. Geothermal energy is utilized as the heat source for OFC and the excess heat is used to produce heating through a hot water heat exchanger. The output power of the PEMFC is used for freshwater production through reverse osmosis desalination system. A parametric analysis is conducted to evaluate the effect of different parameters on the system performance and the optimum point is determined.
Article
Engineering, Environmental
Tao Hai, Masood Ashraf Ali, Mustafa D. Younus, Bhupendra Singh Chauhan, Ahmed Sayed Mohammed Metwally, Mirzat Ullah
Summary: The limitations of the single-flash cycle include low efficiency, limited power output, and the inability to produce multiple products simultaneously. In this study, sub-systems such as a branched GAX cycle, a thermoelectric generator, a domestic water heater, and a reverse osmosis unit are coupled with the single-flash cycle to improve performance and produce multiple products. Thermodynamic, environmental, sustainability, and net present value approaches are used to analyze system performance.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
Article
Green & Sustainable Science & Technology
Haitao Lin, Mo Han Zhang, Bhupendra Singh Chauhan, Awatif M. A. Elsiddieg, Mohamed Abdelghany Elkotb, Peng Zhu, Ruicheng Tian, Mohamed Abouelela
Summary: This research proposes a unique method that simultaneously produces electricity and methanol using landfill gas reforming and renewable hydrogen production. The procedure is cost-effective, highly energy efficient, and has no carbon dioxide emissions. It consists of alkaline electrolyzers, biogas partial oxidation reforming units, gas-steam cycle power plants, steam cycle power plants, and methanol synthesis units. The overall energy and exergy efficiencies of the procedure are 48.71% and 53.62%, respectively. The environmental analysis shows that negative net carbon dioxide emissions can be achieved by utilizing steam cycle power plants and gas-steam cycle power plants.
JOURNAL OF CLEANER PRODUCTION
(2023)
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.
