Article
Thermodynamics
Sungyup Jung, Jong-Min Jung, Kyun Ho Lee, Eilhann E. Kwon
Summary: This study theoretically examined the performance of aviation fuels derived from plant oils through thermally induced non-catalytic transesterification, showing that biodiesels produced had higher consumption rates but higher engine and specific thrusts compared to conventional jet fuels. The study suggests that blending jet fuels with biodiesel can help in reducing CO2 emissions without compromising fuel performance.
ENERGY CONVERSION AND MANAGEMENT
(2021)
Article
Environmental Sciences
Valentina Nieto Marin, Leidy Vanessa Echavarria Mazo, Maritza Londono Berrio, Luz Yaneth Orozco Jimenez, Veronica Estrada Velez, Juan Pablo Isaza, Isabel Cristina Ortiz-Trujillo
Summary: This study found that the organic material extracted from engine emissions, whether from diesel or diesel blended with biomass, had a significant genotoxic effect on DNA. The research indicates that reducing emissions does not necessarily lead to a decrease in genotoxic potential.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Chemistry, Multidisciplinary
Ahmed M. R. N. Alrashidi, Nor Mariah Adam, Mohd Khairol Anuar Bin Mohd Ariffin, Alajmi Fnyees, Amer Alajmi, Alrashidi Naser, Hairuddin Abdul Aziz
Summary: The adoption of biorenewable alternative fuel resources can reduce toxic greenhouse gas emissions from gas turbine engines. However, inefficient engine performance still leads to emissions of toxic gases. This study integrates plasma combustion technology into a micro-GTE using biodiesel fuel, and demonstrates improved performance, reduced fuel consumption, and decreased GHG emissions.
APPLIED SCIENCES-BASEL
(2022)
Article
Chemistry, Physical
Alvaro Benet, Antonio Villalba-Herreros, Rafael Amore-Domenech, Teresa J. Leo
Summary: This research aims to address the technological challenge faced by the maritime industry in reducing greenhouse gas emissions, proposing the use of alternative fuels and fuel cell technologies in hybrid power plants to achieve high flexibility.
JOURNAL OF POWER SOURCES
(2022)
Article
Thermodynamics
Shaimaa Seyam, Ibrahim Dincer, Martin Agelin-Chaab
Summary: This paper presents two proposed high bypass three-shaft turbofan engines combined with fuel cells to investigate their performance in cruising operation mode. Results show that using MCFC-turbofan can significantly improve engine efficiency and reduce carbon emissions.
Article
Engineering, Aerospace
Younseok Choi, Jinkwang Lee
Summary: This study predicts the demand for liquid hydrogen fuel in aviation and suggests converting a large percentage of existing aircraft to liquid hydrogen aircraft by 2050. The research reveals that although the production cost of liquid hydrogen is initially high, it will stabilize and be relatively low compared to jet fuel in the long run.
Review
Engineering, Aerospace
Calvin Nguyen, James C. Thomas
Summary: Hybrid rocket engine performance is influenced by fuel/oxidizer selection and fuel grain geometry. This literature review examines the application of additive manufacturing (AM) to fuel systems for HREs and documents the effects of various factors on regression rates, combustion efficiencies, and mechanical strength. AM fuels demonstrate similar theoretical performance to traditional HTPB fuel and offer improved performance and design flexibility. The development of AM approaches for HRE fuel design expands design possibilities and enables the competitive application of HREs in future propulsion missions.
Article
Engineering, Multidisciplinary
Mohammed El-Adawy
Summary: To enhance the performance and combustion attributes of a diesel engine, this study utilizes different blends of diesel, second generation biodiesel, and zinc oxide (ZnO) nanoparticles. The addition of ZnO compensates for the poor combustion characteristic of biodiesel, leading to improved engine torque and reduced fuel consumption. The inclusion of ZnO also enhances the engine heat release rate, ignition delay period, and in-cylinder pressure.
ALEXANDRIA ENGINEERING JOURNAL
(2023)
Article
Green & Sustainable Science & Technology
Jonas Martin, Anne Neumann, Anders Odegard
Summary: This study examines the potential for achieving carbon neutrality in the global trucking, shipping, and aviation sectors by 2050 through the use of renewable hydrogen and synthetic fuels. By developing a holistic cost model and applying it to case studies in Norway, the authors investigate the economic impact of fuel substitution over time. The findings show that renewable fuels can achieve cost reductions of 41% to 68% by 2050, but the transition to carbon-neutral transportation will face cost disadvantages in certain sectors.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2023)
Article
Green & Sustainable Science & Technology
Nikos Giannakis, Miguel Carmona-Cabello, Aikaterini Makri, David Leiva-Candia, Katiana Filippi, Chrysanthi Argeiti, Chrysanthi Pateraki, M. P. Dorado, Apostolis Koutinas, Eleni Stylianou
Summary: A consolidated biorefinery was developed using spent coffee grounds and orange peel residues to produce microbial oil and value-added co-products. The biorefinery utilized extracted coffee oil and antioxidant-rich extracts from spent coffee grounds, as well as free sugars and pectin-rich extracts from orange peel residues. Microbial oil production was successfully achieved in a 30 L bioreactor scale using a combination of hydrolysates from both waste sources, resulting in high lipid accumulation and productivity. The properties of the microbial oil as biodiesel were found to generally meet European standards.
Article
Green & Sustainable Science & Technology
Rashi Koul, Naveen Kumar, Ramesh Chandra Singh
Summary: This paper analyzes the physiochemical properties of renewable diesel, biodiesel, and blends of diesel and renewable diesel. The study finds that up to 30% renewable diesel can be used as a substitute fuel due to its similar properties to diesel.
ENVIRONMENTAL PROGRESS & SUSTAINABLE ENERGY
(2022)
Review
Biotechnology & Applied Microbiology
Susan G. Karp, Jesus D. C. Medina, Luiz A. J. Letti, Adenise L. Woiciechowski, Julio C. de Carvalho, Caroline C. Schmitt, Rafaela de Oliveira Penha, Gabriel S. Kumlehn, Carlos R. Soccol
Summary: Brazilian bioethanol is one of the largest biofuels produced globally, making significant contributions to reducing oil dependency, CO2 emissions, and economic development. Pioneering biofuel policies and technological advancements in Brazil have led to the establishment of a renewable energy matrix, showcasing the impact of ethanol production and utilization on environmental and socio-economic concerns.
BIOFUELS BIOPRODUCTS & BIOREFINING-BIOFPR
(2021)
Article
Energy & Fuels
M. N. A. Mukhtar, Ftwi Y. Hagos, Abd Rashid Abd Aziz, Abdul Adam Abdulah, Zainal Ambri Abdul Karim
Summary: The study shows that the diesel engine running on tri-fuel emulsions exhibits positive combustion characteristics improvement, especially in terms of heat release rate and in-cylinder pressure during the ignition delay period.
Article
Engineering, Aerospace
Lin-lin Liu, Tong-yong Zhang, Ze-bin Chen, Xiang He, Zhen Ji
Summary: Droplet entrainment is an effective way to improve the regression rate of paraffin fuels, but the combustion mechanism becomes more complicated due to the heterogeneous combustion reactions between droplets and oxidizer. This study found that droplet entrainment is related to Kelvin-Helmholtz instability, higher oxidizer mass flux improves combustion efficiency, and higher pressure and the use of catalyst affect droplet entrainment and combustion flame height significantly.
Article
Energy & Fuels
Subhash G.V., Sivapirakasam S.P., Phanindra K. Harisivasri
Summary: The present experimental investigation focuses on improving the properties of biomixture fuel samples by using a novel additive such as 1-butyl-1-methylpyrrolidinium chloride (ionic liquid). SWME-4 and SWME-5 are identified as optimal blends and meet the standard limits of BIS, ASTM, and EN testing methods. The addition of an ionic additive and increasing the percentage of WCME in the fuel blends significantly increased the overall saturated fatty acids content.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Review
Energy & Fuels
Sandeep Kumar Duran, Pramod Kumar, Sarbjot S. Sandhu
Summary: Microalgae have the potential to be a source of renewable fuel due to their fast growth, high lipid content, and ability to survive in saline water. This study focuses on the selection of microalgae strains, lipid extraction methods, biodiesel conversion technologies, and effects of microalgae biodiesel on engine combustion and emissions, providing expedient information for efficient and commercially feasible technologies in the algae-based oil industry.
Article
Energy & Fuels
Sudhansu Sekhar Das, Pramod Kumar, Sarbjot Singh Sandhu
Summary: This research utilizes PCM technology as a cooling medium and conducts MATLAB simulation and modeling to achieve an integrated PV-T system. Under the climatic conditions of India, the cooling system lowered the temperature of PV panels by 8.8 degrees C, and the hot water can be generated at temperatures ranging from 50 to 70 degrees C by reprogramming the microcontroller.
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
(2021)
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)
Article
Thermodynamics
Deepak Singh, Anil Kumar Sarma, Sarbjot Singh Sandhu
INTERNATIONAL JOURNAL OF GREEN ENERGY
(2019)
Article
Environmental Sciences
Mandeep Singh, Deepak Kumar Singh, Surjit Kumar Gandhi, Amit Sarin, Sanjeev Saini, Sunil Kumar Mahla, Ajay Gupta, Sarbjot Singh Sandhu
WASTE AND BIOMASS VALORIZATION
(2020)
Article
Energy & Fuels
Mandeep Singh, Sarbjot Singh Sandhu
Article
Energy & Fuels
Mandeep Singh, Amit Sarin, Sarbjot Singh Sandhu
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
(2020)
Article
Green & Sustainable Science & Technology
Deepak Singh, Anil K. Sarma, Sarbjot S. Sandhu
Summary: This study experimentally investigated the combined effect of injection timing and pressure on engine characteristics using hybrid fuel. Advancing injection timing led to higher cylinder pressure and heat release peaks, while retarding it showed the opposite trend compared to the original setting.
ENVIRONMENTAL PROGRESS & SUSTAINABLE ENERGY
(2021)
Article
Energy & Fuels
Mandeep Singh, Sarbjot Singh Sandhu
Summary: The study found that lowering engine boost pressure when using AB20 blend fuel can improve emissions and brake thermal efficiency, especially under high load conditions. However, reducing boost increases ignition delay and changes the characteristics of combustion.
Article
Energy & Fuels
Sudhansu Sekhar Das, Pramod Kumar, Sarbjot Singh Sandhu
Summary: This research focuses on utilizing the excess heat from photovoltaic panels for generating hot water, while also generating electrical energy. Through simulation, modeling, and experiments, the study examines the parameters and discharge capacity of a hybrid photovoltaic-thermal system. The results show that different heat transfer mediums have varying effects on the electrical and thermal efficiency.
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
(2023)
Article
Mathematics, Applied
Prem Kumar, Mandeep Singh, Sarbjot Singh Sandhu
Summary: This paper investigates the dynamic characteristics of a combustion process in a diesel engine fueled with biodiesel/diesel blended fuel using wavelet transform techniques. The results show that cyclic variations in combustion parameters are sensitive to engine load and fuel properties, and adding biodiesel into diesel fuel can reduce cyclic variations in combustion parameters.
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.
Proceedings Paper
Materials Science, Multidisciplinary
Prem Kumar, Sarbjot Singh Sandhu
Summary: This paper discusses the impact of high research octane number fuels and partially premixed combustion strategy on diesel engine emissions, aiming to reduce soot and NOx emissions while maintaining high engine efficiency through optimizing fuel injection tactics.
MATERIALS TODAY-PROCEEDINGS
(2021)
Article
Energy & Fuels
Sudhansu Sekhar Das, Pramod Kumar, Sarbjot Singh Sandhu
Summary: The research aims to develop a hybrid PV-T system to utilize overheating energy from panels to heat water, addressing the issues of non-uniform panel cooling and constant hot water temperature in existing systems. The average electrical and thermal efficiencies of the system were observed to be 13.5% and 47.24%, respectively.
INTERNATIONAL JOURNAL OF SUSTAINABLE ENERGY
(2021)
