Article
Energy & Fuels
Geetesh Goga, Bhupendra Singh Chauhan, Sunil Kumar Mahla, Amit Dhir, Haeng Muk Cho
Summary: The study investigates the feasibility of using blends of biodiesel and diesel, as well as introducing biogas as an alternative fuel. Experimental results show lower emissions and decreased NOx and smoke emissions compared to pure diesel when using the blend fuel in a diesel engine.
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
(2021)
Article
Thermodynamics
H. G. How, Y. H. Teoh, B. Navaneetha Krishnan, T. D. Le, H. T. Nguyen, C. Prabhu
Summary: While electric mobility is slowly becoming a trend in automotive sales, it has not yet received wide acceptance due to limited range. The high energy density of liquid fuel remains unmatched by electric battery performance. The impact of conventional fuels on human health highlights the need for alternative fuel research.
Article
Energy & Fuels
Praepilas Dujjanutat, Nithinun Srihanun, Papasanee Muanruksa, James Winterburn, Pakawadee Kaewkannetra
Summary: Two different methods were used to produce bio-hydrogenated diesel (BHD), also known as green diesel, from rice bran oil (RBO). The first method involved a direct hydrotreating reaction catalyzed by Pd/Al2O3 in a high-pressure batch reactor, while the second method combined transesterification and hydrotreating reactions of rice bran methyl ester (RBME) to produce BHD. The optimal conditions for the reactions were determined and the yields of crude/refined biofuels and BHD were measured. The physical and chemical properties of RBO/RBME green diesel were also evaluated. Overall, both catalytic reactions were successful in achieving low-speed industrial diesel range and were recommended for BHD or green diesel production from RBO.
Article
Chemistry, Multidisciplinary
Muhamad Sharul Nizam Awang, Nurin Wahidah Mohd Zulkifli, Muhammad Mujtaba Abbas, Syahir Amzar Zulkifli, Md Abul Kalam, Muhammad Hazwan Ahmad, Mohd Nur Ashraf Mohd Yusoff, Mazrina Mazlan, Wan Mohd Ashri Wan Daud
Summary: This research examined the impact of waste plastic oil and palm oil biodiesel on diesel engine performance and emissions. The study found that WPO90 is the optimal secondary fuel, showing potential for more efficient operation of diesel engines.
Article
Engineering, Multidisciplinary
M. H. A. Hamid, M. T. Ishak, N. S. Suhaimi, J. Adnan, N. Hashim, M. Ariffin, N. I. A. Katim, Rahisham Abd Rahman
Summary: This paper investigates the dielectric properties and AC breakdown voltage behavior of Palm Oil (PO) and Rice Bran Oil (RBO). It is found that RBO has better insulating oil capability than PO, and PO has advantages in terms of stress distribution. RBO has the highest breakdown voltage, followed by PO, while MO shows the lowest breakdown voltage.
ALEXANDRIA ENGINEERING JOURNAL
(2022)
Article
Engineering, Multidisciplinary
Nuri Tunc, Mustafa Karagoz, Burak Ciftci, Emrah Deniz
Summary: The study found that blends of pyrolytic oil - biogas - diesel fuel in variable ratios can be used as an alternative fuel in diesel engines instead of neat diesel, and they have better environmental pollution cost analysis results.
ENGINEERING SCIENCE AND TECHNOLOGY-AN INTERNATIONAL JOURNAL-JESTECH
(2021)
Article
Thermodynamics
Pravin Ashok Madane, Subrata Bhowmik, Rajsekhar Panua
Summary: The study highlights the positive influence of Undi ester blended diesel on the performance and emissions characteristics of a diesel engine. The ester blends improve brake thermal efficiency and decrease energy consumption, but result in higher nitrogen oxide emissions. Undi ethyl ester blends show slightly better performance than UME blends, with higher maximum in-cylinder pressure and heat release rate.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Article
Energy & Fuels
V. Venkatesan, N. Nallusamy, P. Nagapandiselvi
Summary: The study investigated the use of exhaust gas recirculation (EGR) technique to reduce NOx emissions in compression ignition engines, using blends of pine oil - soapnut oil methyl ester and diesel - soapnut oil methyl ester in a twin cylinder off-road vehicle diesel engine. The results showed significant reductions in carbon monoxide and unburnt hydrocarbon emissions with the use of hybrid biofuel blends under different operating conditions.
Article
Thermodynamics
Naseem Khayum, S. Anbarasu, S. Murugan
Summary: This study aims to run a diesel engine completely with renewable sources such as biogas and waste cooking oil methyl ester. The research investigates the combined effect of fuel injection parameters and compression ratio on the performance of a modified diesel engine running on biogas-biodiesel. Results showed that specific parameters led to improved fuel efficiency and reduced emissions compared to a standard diesel engine.
Article
Energy & Fuels
Ekkachai Sutheerasak, Worachest Pirompugd, Sathaporn Chuepeng
Summary: This study investigates the effects of blending palm oil methyl ester (POME) with carbureting biobutanol on the performance and exhaust emissions of a diesel engine. The results show a continuous reduction in engine performance and emissions when highly fumigated biobutanol is combined with POME.
Article
Thermodynamics
Ravikumar Jayabal, Sekar Subramani, Damodharan Dillikannan, Yuvarajan Devarajan, Lakshmanan Thangavelu, Mukilarasan Nedunchezhiyan, Gopal Kaliyaperumal, Melvin Victor De Poures
Summary: This study investigates the combined effect of compression ratio and exhaust gas recirculation on the combustion, performance, and emissions of a common rail direct injection engine fueled by a blend of sapota methyl ester and diesel. The results show that increasing the compression ratio reduces ignition delay and increases heat release rate. Higher exhaust gas recirculation rates reduce nitrogen oxide emissions but increase smoke opacity. The use of the biodiesel blend reduces hydrocarbon and carbon monoxide emissions compared to neat diesel. The optimal condition for improved combustion, performance, energy, and reduced emissions is a 50% biodiesel blend with a compression ratio of 16 and an exhaust gas recirculation rate of 20%.
Article
Thermodynamics
Rashmi Walvekar, Danial Aminin Zairin, Mohammad Khalid, Nabisab Mujawar Mubarak, T. C. S. M. Gupta
Summary: This study investigated the thermal conductivity, viscosity, and thermal degradation of naphthenic-based mineral oil, palm oil methyl ester (POME), and their blend. Results showed that blending POME with mineral oil can enhance properties such as thermal conductivity, viscosity, flash point, and thermal degradation, leading to improved system performance and faster heat dissipation.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Article
Thermodynamics
M. Vergel-Ortega, G. Valencia-Ochoa, J. Duarte-Forero
Summary: This study investigates the use of ethanol as an additive in biodiesel blends derived from palm oil and sunflower oil residues, finding that ethanol incorporation can improve thermal efficiency and reduce emissions levels in diesel engines. Integrating biodiesel and ethanol emerges as a promising alternative for reliable and sustainable operation.
CASE STUDIES IN THERMAL ENGINEERING
(2021)
Article
Green & Sustainable Science & Technology
Vitor Alves Lourenco, Willian Cezar Nadaleti, Bruno Muller Vieira, Hui Chua
Summary: The study shows that the residues of rice parboiling industries in Brazil can be used to produce biogas, increasing the sector's self-sufficiency in energy. Adding 1% glycerol in anaerobic digestion significantly boosts methane production. However, higher doses of glycerol may lead to the interruption of methanogenic activity.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2021)
Article
Thermodynamics
P. V. Elumalai, B. Dhinesh, J. Jayakar, M. Nambiraj, V. Hariharan
Summary: The study found that preheated palm oil mixed with additives can significantly increase the efficiency of IC engines and reduce emissions.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Article
Energy & Fuels
Bhaskor J. Bora, Ujjwal K. Saha
JOURNAL OF ENERGY RESOURCES TECHNOLOGY-TRANSACTIONS OF THE ASME
(2016)
Article
Engineering, Mechanical
Bhaskor J. Bora, Ujjwal K. Saha
JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER-TRANSACTIONS OF THE ASME
(2015)
Article
Thermodynamics
Bhaskor J. Bora, Ujjwal K. Saha
APPLIED THERMAL ENGINEERING
(2016)
Article
Energy & Fuels
Bhaskor J. Bora, Ujjwal K. Saha
JOURNAL OF ENERGY ENGINEERING
(2016)
Article
Green & Sustainable Science & Technology
Bhaskor J. Bora, Ujjwal K. Saha
Article
Energy & Fuels
Bhaskor J. Bora, Ujjwal K. Saha
JOURNAL OF ENERGY ENGINEERING
(2016)
Article
Energy & Fuels
Bhaskor J. Bora, Ujjwal K. Saha
JOURNAL OF ENERGY ENGINEERING
(2017)
Article
Energy & Fuels
Bhaskor J. Bora, Ujjwal K. Saha
JOURNAL OF ENERGY ENGINEERING
(2017)
Article
Thermodynamics
Bhaskor J. Bora, Ujjwal K. Saha, Soumya Chatterjee, Vijay Veer
ENERGY CONVERSION AND MANAGEMENT
(2014)
Article
Energy & Fuels
Biplab K. Debnath, Bhaskor J. Bora, Niranjan Sahoo, Ujjwal K. Saha
JOURNAL OF ENERGY ENGINEERING
(2014)
Proceedings Paper
Engineering, Mechanical
Bhaskor J. Bora, Ujjwal K. Saha, S. Chatterjee, Vijay Veer
FLUID MECHANICS AND FLUID POWER - CONTEMPORARY RESEARCH
(2017)
Proceedings Paper
Engineering, Mechanical
Vijay S. Verma, Bhaskor J. Bora, Achinta Sarkar, Ujjwal K. Saha
PROCEEDINGS OF THE ASME 12TH BIENNIAL CONFERENCE ON ENGINEERING SYSTEMS DESIGN AND ANALYSIS - 2014, VOL 2
(2014)
Proceedings Paper
Engineering, Mechanical
Bhaskor J. Bora, Ujjwal K. Saha
PROCEEDINGS OF THE ASME 12TH BIENNIAL CONFERENCE ON ENGINEERING SYSTEMS DESIGN AND ANALYSIS - 2014, VOL 2
(2014)
Article
Green & Sustainable Science & Technology
Cameron Bracken, Nathalie Voisin, Casey D. Burleyson, Allison M. Campbell, Z. Jason Hou, Daniel Broman
Summary: This study presents a methodology and dataset for examining compound wind and solar energy droughts, as well as the first standardized benchmark of energy droughts across the Continental United States (CONUS) for a 2020 infrastructure. The results show that compound wind and solar droughts have distinct spatial and temporal patterns across the CONUS, and the characteristics of energy droughts are regional. The study also finds that compound high load events occur more often during compound wind and solar droughts than expected.
Article
Green & Sustainable Science & Technology
Ning Zhang, Yanghao Yu, Jiawei Wu, Ershun Du, Shuming Zhang, Jinyu Xiao
Summary: This paper provides insights into the optimal configuration of CSP plants with different penetrations of wind power by proposing an unconstrained optimization model. The results suggest that large solar multiples and TES are preferred in order to maximize profit, especially when combined with high penetrations of wind and photovoltaic plants. Additionally, the study demonstrates the economy and feasibility of installing electric heaters (EH) in CSP plants, which show a linear correlation with the penetration of variable energy resources.
Article
Green & Sustainable Science & Technology
M. Szubel, K. Papis-Fraczek, S. Podlasek
Article
Green & Sustainable Science & Technology
J. Silva, J. C. Goncalves, C. Rocha, J. Vilaca, L. M. Madeira
Summary: This study investigated the methanation of CO2 in biogas and compared two different methanation reactors. The results showed that the cooled reactor without CO2 separation achieved a CO2 conversion rate of 91.8%, while the adiabatic reactors achieved conversion rates of 59.6% and 67.2%, resulting in an overall conversion rate of 93.0%. Economic analysis revealed negative net present worth values, indicating the need for government monetary incentives.
Article
Green & Sustainable Science & Technology
Yang Liu, Yonglan Xi, Xiaomei Ye, Yingpeng Zhang, Chengcheng Wang, Zhaoyan Jia, Chunhui Cao, Ting Han, Jing Du, Xiangping Kong, Zhongbing Chen
Summary: This study investigated the effect of using nanofiber membrane composites containing Prussian blue-like compound nanoparticles (PNPs) to relieve ammonia nitrogen inhibition of rural organic household waste during high-solid anaerobic digestion and increase methane production. The results showed that adding NMCs with 15% PNPs can lower the concentrations of volatile fatty acids and ammonia nitrogen, and increase methane yield.
Article
Green & Sustainable Science & Technology
Zhong Ge, Xiaodong Wang, Jian Li, Jian Xu, Jianbin Xie, Zhiyong Xie, Ruiqu Ma
Summary: This study evaluates the thermodynamic, exergy, and economic performance of a double-stage organic flash cycle (DOFC) using ten eco-friendly hydrofluoroolefins. The influences of key parameters on performance are analyzed, and the advantages of DOFC over single-stage type are quantified.
Article
Green & Sustainable Science & Technology
Nicolas Kirchner-Bossi, Fernando Porte-Agel
Summary: This study investigates the optimization of power density in wind farms and its sensitivity to the available area size. A novel genetic algorithm (PDGA) is introduced to optimize power density and turbine layout. The results show that the PDGA-driven solutions significantly reduce the levelized cost of energy (LCOE) compared to the default layout, and exhibit a convex relationship between area and LCOE or power density.
Article
Green & Sustainable Science & Technology
Chunxiao Zhang, Dongdong Li, Lin Wang, Qingpo Yang, Yutao Guo, Wei Zhang, Chao Shen, Jihong Pu
Summary: In this study, a novel reversible liquid-filled energy-saving window that effectively regulates indoor solar radiation heat gain is proposed. Experimental results show that this window can effectively reduce indoor temperature during both summer and winter seasons, while having minimal impact on indoor illuminance.
Article
Green & Sustainable Science & Technology
Alessandro L. Aguiar, Martinho Marta-Almeida, Mauro Cirano, Janini Pereira, Leticia Cotrim da Cunha
Summary: This study analyzed the Brazilian Equatorial Shelf using a high-resolution ocean model and found significant tidal variations in the area. Several hypothetical barrages were proposed with higher annual power generation than existing barrages. The study also evaluated the installation effort of these barrages.
Article
Green & Sustainable Science & Technology
Francesco Superchi, Nathan Giovannini, Antonis Moustakis, George Pechlivanoglou, Alessandro Bianchini
Summary: This study focuses on the optimization of a hybrid power station on the Tilos island in Greece, aiming to increase energy export and revenue by optimizing energy fluxes. Different scenarios are proposed to examine the impact of different agreements with the grid operator on the optimal solution.
Article
Green & Sustainable Science & Technology
Peimaneh Shirazi, Amirmohammad Behzadi, Pouria Ahmadi, Sasan Sadrizadeh
Summary: This research presents two novel energy production/storage/usage systems to reduce energy consumption and environmental effects in buildings. A biomass-fired model and a solar-driven system integrated with photovoltaic thermal (PVT) panels and a heat pump were designed and assessed. The results indicate that the solar-based system has an acceptable energy cost and the PVT-based system with a heat pump is environmentally superior. The biomass-fired system shows excellent efficiency.
Article
Green & Sustainable Science & Technology
Zihao Qi, Yingling Cai, Yunxiang Cui
Summary: This study aims to investigate the operational characteristics of the solar-ground source heat pump system (SGSHPS) in Shanghai under different operation modes. It concludes that tandem operation mode 1 is the optimal mode for winter operation in terms of energy efficiency.
Article
Green & Sustainable Science & Technology
L. Bartolucci, S. Cordiner, A. Di Carlo, A. Gallifuoco, P. Mele, V. Mulone
Summary: Spent coffee grounds are a valuable biogenic waste that can be used as a source of biofuels and valuable chemicals through pyrolysis and solvent extraction processes. The study found that heavy organic bio-oil derived from coffee grounds can be used as a carbon-rich biofuel, while solvent extraction can extract xantines and p-benzoquinone, which are important chemicals for various industries. The results highlight the promising potential of solvent extraction in improving the economic viability of coffee grounds pyrolysis-based biorefineries.
Article
Green & Sustainable Science & Technology
Luiza de Queiroz Correa, Diego Bagnis, Pedro Rabelo Melo Franco, Esly Ferreira da Costa Junior, Andrea Oliveira Souza da Costa
Summary: Building-integrated photovoltaics, especially organic solar technology, are important for reducing greenhouse gas emissions in the building sector. This study analyzed the performance of organic panels laminated in glass in a vertical installation in Latin America. Results showed that glass lamination and vertical orientation preserved the panels' performance and led to higher energy generation in winter.
Article
Green & Sustainable Science & Technology
Zhipei Hu, Shuo Jiang, Zhigao Sun, Jun Li
Summary: This study proposes innovative fin arrangements to enhance the thermal performance of latent heat storage units. Through optimization of fin distribution and prediction of transient melting behaviors, it is found that fin structures significantly influence heat transfer characteristics and melting behaviors.
