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
Chemistry, Multidisciplinary
Sarunporn Sriprathum, Atthaphon Maneedaeng, Niti Klinkaew, Ekarong Sukjit
Summary: This study investigates the lubricating properties of bio-hydrogenated diesel (BHD) blended with varying concentrations of fatty acid methyl ester (FAME). The addition of even a small amount of FAME (5%) significantly improves the lubricating properties of BHD, reducing wear. The study highlights the potential of FAME as an additive to enhance lubricity and reduce engine wear in BHD.
Article
Energy & Fuels
Di Yage, Zhang Junjie, Cheung Chun Shun, Miao Xuelong, Zheng Jinbao, Peng Haiyong, Wu Tao
Summary: This study investigated the influence of biodiesel and diglyme blends on combustion and particulate emission characteristics in a 4-cylinder direct-injection diesel engine. The results showed that the increase in oxygen content led to advanced in-cylinder pressure and heat release curve for both blends, but with lower peak values compared to diesel. The combustion center was slightly varied for biodiesel fuels but significantly postponed for diglyme blends. Furthermore, the smoke opacity, brake specific particulate emissions, and the geometric mean diameter of particles decreased with the increase in soluble organic fraction proportion, with more obvious variations observed in biodiesel blends. In addition, the total particle number concentration and the particle smaller than 100 nm in diameter increased gradually and unidirectionally for biodiesel blended fuels, but for diglyme blends, the peak value of the total particle was found from the blend containing 2% oxygen and the particles from all diglyme blends were higher than that from diesel. Compared with biodiesel, diglyme fuels had more particulate and particles emissions on the same oxygen base.
Article
Engineering, Chemical
Luisa L. Monteiro, Paulo Zoio, Bernardo B. Carvalho, Luis P. Fonseca, Cecilia R. C. Calado
Summary: This study compared the performance of a benchtop Fourier Transform (FT) NIR spectrometer and a prototype of a portable, miniaturized near-infrared spectrometer (miniNIR) in detecting and quantifying contaminants in biodiesel and biodiesel blends. The FT-NIR spectra-based PCA-LDA models accurately predicted the contaminants in biodiesel and biodiesel blends with high accuracies (75% to 95%), while the PLS regression models accurately predicted the concentration of contaminants in biodiesel and the concentration of biodiesel in diesel/biodiesel blends (coefficients of determination between 0.83 and 0.99, and low prediction errors). The miniNIR prototype's PCA-LDA models achieved good accuracies in predicting target contaminants (between 66% and 86%), and the PLS model reasonably predicted the biodiesel concentration in diesel (coefficient of determination of 0.68), indicating the device's potential for preliminary biodiesel analysis and potential cost and portability advantages for biodiesel quality control.
Article
Energy & Fuels
M. Mubarak, A. Shaija, T. V. Suchithra
Summary: Experimental results show that using Salvinia molesta biodiesel blend as fuel in diesel engines can significantly reduce peak pressure and heat release rate, as well as improve performance and reduce emissions, with B20 blend performing the best.
Article
Energy & Fuels
Devaraj Rangabashiam, H. Suresh Babu Rao, Ganesan Subbiah, Mohanavel Vinayagam
Summary: This study investigates the effects of adding nano biochar derived from sugarcane to custard seed biodiesel on the emission and performance of a compression ignition engine. The experimental results show that adding 50 ppm of biochar reduces smoke, CO, and HC emissions, while improving brake thermal efficiency.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Article
Chemistry, Physical
Songyin Yu, Fei Wang, Jianchun Jiang, Xinyi Luo, FeiFei Xing, Taotao He, Junfeng Feng, Xiaoxiang Jiang
Summary: The study investigates the catalytic performance of three different Co catalysts for lipid hydrotreatment and finds that the Co/NC catalyst shows excellent performance with high conversion and yield compared to the other two catalysts.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Green & Sustainable Science & Technology
Aman Singh Rajpoot, H. Chelladurai, Akhilesh Kumar Choudhary, Balram Ambade, Tushar Choudhary
Summary: This study analyzes the energy, exergy, sustainability, and emission performance of a Botryococcus braunii microalgae biodiesel blended with three different nanoparticles in a diesel engine system. The inclusion of nanoparticles improves combustion efficiency and energy utilization efficiency, but increases NOx emissions. Additionally, nanoparticles reduce particulate matter emissions and exergy destruction.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2023)
Article
Energy & Fuels
Sivakumar Ellappan, Silambarasan Rajendran
Summary: This review highlights the use of eucalyptus oil as a primary biodiesel and biodiesel as a secondary fuel in low heat rejection engines to improve brake thermal efficiency and reduce emissions. The higher density and cetane index of eucalyptus oil compared to diesel are addressed by adding diethyl ether to the blend. The study aims to enhance the BTE equivalent and decrease emissions compared to traditional diesel fuel.
Article
Chemistry, Multidisciplinary
Chandrabhushan Tiwari, Tikendra Nath Verma, Gaurav Dwivedi, Puneet Verma
Summary: Renewable energy is gaining more attention due to the depletion of fossil fuel reserves. In this study, Spirulina microalgae were used as feedstock for biodiesel production. Energy and exergy analysis were conducted on a diesel engine using different fuel blends. The results showed that the exergy efficiency of pure diesel was higher than that of biodiesel blends. The study also found that the engine's sustainability index was associated with exergy efficiencies.
APPLIED SCIENCES-BASEL
(2023)
Article
Green & Sustainable Science & Technology
Naveen Kumar, Rashi Koul, R. C. Singh
Summary: This study investigates blends of diesel, renewable diesel, and ethanol and compares their physicochemical properties. The research shows that adding a suitable amount of renewable diesel can improve the cold flow properties and cetane index of the blends.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2022)
Article
Green & Sustainable Science & Technology
Rajayokkiam Manimaran, Thangavelu Mohanraj, Raghavan Ashwin
Summary: Numerous studies have found that biodiesel is an ideal substitute for standard diesel fuel, but it produces more nitric oxide (NO) emissions. In this experimental study, a green synthesized cerium oxide (CeO2) nano-additive produced from Azadirachta indica leaf extract is used to reduce NO. The addition of 30 ppm CeO2 to a 20% Trichosanthes cucumerina oil biodiesel emulsion shows significant reductions in hydrocarbon, carbon monoxide, smoke opacity, and NO emissions when compared to standard diesel.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Energy & Fuels
Y. H. Teoh, H. Yaqoob, H. G. How, T. D. Le, H. T. Nguyen
Summary: This study compares the combustion, performance, and emission characteristics of tire pyrolysis oil, biodiesel, and diesel blended fuel in a multi-cylinder high-pressure common-rail diesel engine. The results show that the P10 fuel outperforms B10 and diesel fuel in terms of torque, brake power, brake thermal efficiency, and emissions reduction. Therefore, P10 is a suitable alternative fuel for multi-cylinder diesel engines without any modifications.
Article
Multidisciplinary Sciences
Myoung-Soo Ko, Seunghak Lee
Summary: The study evaluates the relative FAME composition ratio as a potential index for discriminating pollution origin in diesel-contaminated soil. Using artificial contamination and natural weathering conditions, soil samples from different diesel origins were classified into four groups based on two principal components analyzed through PCA. This proposed method can effectively discriminate specific diesel pollution origins in contaminated soils.
SCIENTIFIC REPORTS
(2021)
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)
