Review
Chemistry, Multidisciplinary
Xiaofang Liu, Dayong Yu, Hangyu Luo, Can Li
Summary: This review emphasizes the importance of microalgae as the third-generation feedstock for biodiesel production and the significant role of lipid extraction in efficient biofuel production. It also discusses the factors influencing biodiesel quality and the selection of green and sustainable solvents for lipid extraction.
FRONTIERS IN CHEMISTRY
(2022)
Article
Biotechnology & Applied Microbiology
Akash Anandraj, Sarah White, Joseph K. Bwapwa
Summary: Temperature and nutrient conditions affect the physiology and FAME composition of Chlorella sp., with dual stress leading to increased lipid yield. Identified FAMEs C-16 and C-18 have potential for quality biodiesel and aviation fuel.
BIOFUELS BIOPRODUCTS & BIOREFINING-BIOFPR
(2021)
Review
Microbiology
Shiqiu Zhang, Lijie Zhang, Geng Xu, Fei Li, Xiaokang Li
Summary: This review introduces the basic characteristics and application fields of microalgae and discusses the influencing parameters and recent advanced technologies for microalgae biodiesel production. It aims to provide useful information to help future development of efficient and commercially viable technology for microalgae-based biodiesel production.
FRONTIERS IN MICROBIOLOGY
(2022)
Review
Chemistry, Multidisciplinary
Sze Ying Lee, Ianatul Khoiroh, Dai-Viet N. Vo, P. Senthil Kumar, Pau Loke Show
Summary: This review focuses on the importance of lipid extraction and key technologies in microalgae biofuel production, proposing strategies to enhance yield.
ENVIRONMENTAL CHEMISTRY LETTERS
(2021)
Article
Engineering, Environmental
Laure Wetterwald, Antoine Leybros, Gatien Fleury, Florian Delrue, Alexandra Dimitriades-Lemaire, Paul Chambonniere, Audrey Hertz
Summary: This study investigates the effects of water content, operating pressure and temperature on supercritical CO2 extraction of lipids from Chlorella vulgaris microalgae. The highest extraction yield was obtained with freeze-dried microalgae at 40℃ and 200 bar. However, extracts obtained at 40℃ and 250 bar had the highest fatty acid content, while those obtained at 60℃ and 250 bar had the highest cetane number and oxidative stability. Water in the initial biomass had a negative impact on total extraction yield, but promoted the extraction of fatty acids, particularly monounsaturated ones.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Plant Sciences
Meng-meng Huang, Xing Xin, Hui-ling Shi, Yi-meng Lin, Hong-zhi Ling, Jingping Ge
Summary: This study isolated six microalgae strains from alpine regions and evaluated their potential for biodiesel and high-value compound production. Among them, Chlorella sp. HDA04 showed potential as a biodiesel producer, while Chlorella sp. HDA07 was suitable for high-value compound production.
SOUTH AFRICAN JOURNAL OF BOTANY
(2022)
Article
Biotechnology & Applied Microbiology
Calvin Lo, Rene H. Wijffels, Michel H. M. Eppink
Summary: Eutectic solvents (ES) composed of imidazole and hexanoic acid can be used as a single solvent for lipid extraction from both wet and dried microalgae, achieving comparable yields to the traditional chloroform/methanol method. Supplementing water can improve the extraction efficiency of dry biomass.
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
(2023)
Article
Agricultural Engineering
Dong Liang, Asraful Alam, Luying Lu, Ronglei Fan, Jingliang Xu, Jingcheng Wu
Summary: A novel strategy combining water-plasma and three-phase partitioning techniques was introduced to improve the efficiency and recovery of lipid extraction from microalgal biomass, leading to reduced energy consumption and potential biodiesel production.
BIORESOURCE TECHNOLOGY
(2022)
Article
Environmental Sciences
Thangavel Mathimani, Manigandan Sekar, Sabarathinam Shanmugam, Jamal S. M. Sabir, Nguyen Thuy Lan Chi, Arivalagan Pugazhendhi
Summary: The study evaluated the biodiesel potential of two hyper lipid producing strains Chlorella sp. and Scenedesmus sp. in terms of biomass yield, lipid content, and fatty acid composition. Scenedesmus sp. showed higher levels of saturated and monounsaturated fatty acids, making it a promising candidate for biodiesel production.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Green & Sustainable Science & Technology
N. Nirmala, S. S. Dawn
Summary: In this study, biodiesel was successfully produced from Chlorella variabilis MK039712.1 microalga oil by optimizing transesterification conditions, resulting in high yield. The chemical structure changes of transesterified algal oil were analyzed using Fourier Transform Infra-Red Spectroscopy, H-1 Nuclear Magnetic Resonance, and C-13 Nuclear Magnetic Resonance. Fuel properties were found to be comparable with ASTM standards.
Review
Chemistry, Multidisciplinary
Ahmet Cosgun, M. Erdem Gunay, Ramazan Yildirim
Summary: This work reviews the applications of machine learning (ML) in microalgal biofuel production. It summarizes the basic steps of algal biofuel production, demonstrates the major research trends in the field through a bibliometric analysis, and identifies the major challenges in commercializing the technology. It systematically reviews and analyzes ML applications for various steps in the value chain. The analysis suggests that ML applications should focus on strain selection and optimization of cultivation conditions, and collaboration is needed to build a comprehensive microalgal strain database and standardized testing methodologies.
Article
Agricultural Engineering
Mohammad Javad Zarrinmehr, Ehsan Daneshvar, Subhasha Nigam, Kannappan Panchamoorthy Gopinath, Jayanta Kumar Biswas, Eilhann E. Kwon, Hailong Wang, Omidvar Farhadian, Amit Bhatnagar
Summary: This study demonstrates that the polarity of solvents and extraction conditions significantly impact lipid yield, FAMEs composition, and biodiesel quality of microalgal biomass.
BIORESOURCE TECHNOLOGY
(2022)
Review
Green & Sustainable Science & Technology
S. Vasistha, A. Khanra, M. Clifford, M. P. Rai
Summary: This study discusses the potential of microalgae as feedstock for biodiesel production, effective approaches for biomass recovery and lipid extraction, and the future direction of microalgae harvesting and lipid recovery. Advanced techniques influencing biomass separation and cellular disruption for efficient lipid removal from microalgae are emphasized for sustainable biofuel development and to enhance the bio-economy strategy.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2021)
Article
Chemistry, Physical
H. Ghazipour, A. Gutierrez, D. Mohammad-Aghaie, M. M. Alavianmher, S. M. Hosseini, S. Aparicio
Summary: The study measured the thermophysical properties of mixtures of fatty acid esters with alkanols and analyzed the intermolecular forces in these systems through experimental measurements and molecular modeling. The non-ideality behavior of the studied systems showed significant changes in hydrogen bonding structuring upon mixing, highlighting the importance of the amount of alkanols in tuning and controlling the macroscopic properties of biodiesel blends.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Energy & Fuels
Malgorzata Hawrot-Paw, Patryk Ratomski, Adam Koniuszy, Wojciech Golimowski, Miroslawa Teleszko, Anna Grygier
Summary: Microalgae are considered promising feedstocks for biodiesel production due to their fast growth rate and high oil content. This study investigated the biofuel production potential of Chlorella vulgaris, Chlorella fusca, Oocystis submarina, and Monoraphidium strain, analyzing the effects of nutrient limitation on biomass growth, lipid accumulation, and physico-chemical parameters of algal biodiesel. Nutrient stress increased lipid production and reduced ash content in microalgal cells, with the fatty acid profile being affected by the type of strain.
Article
Environmental Sciences
Krishnamurthy Mathivanan, Jayaraman Uthaya Chandirika, Thangavel Mathimani, Rajendran Rajaram, Gurusamy Annadurai, Huaqun Yin
Summary: This study investigated the production and compositional analysis of exopolysaccharides produced by Bacillus cereus KMS3-1 grown in metal amended conditions and evaluated their metal adsorption efficacy. The results showed that EPS from KMS3-1 strain exhibited efficient adsorption capacity for Cd(II), Cu(II), and Pb(II), making them potential chelating agents for wastewater treatment. The study also confirmed the proficient metal adsorption of EPS through XRD analysis, highlighting their potential application in environmental remediation.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2021)
Article
Energy & Fuels
Tharifkhan Shan Ahamed, Susaimanickam Anto, Thangavel Mathimani, Kathirvel Brindhadevi, Arivalagan Pugazhendhi
Summary: Bio-oil is being investigated as a potential alternative to petroleum crude due to its similar composition, but its complex composition presents challenges. Therefore, upgrading techniques are necessary to improve the quality and application of bio-oil. Research on enhancing bio-oil quality through various methods is an important direction for further study.
Review
Energy & Fuels
Nguyen Thuy Lan Chi, Susaimanickam Anto, Tharifkhan Shan Ahamed, Smita S. Kumar, Sabarathinam Shanmugam, Melvin S. Samuel, Thangavel Mathimani, Kathirvel Brindhadevi, Arivalagan Pugazhendhi
Summary: This article comprehensively reviews the application of biochar-based catalysts in fuel production, covering production routes, composition, and catalytic mechanisms. Various aspects of biochar catalysts including transesterification, esterification, biomass hydrolysis, and biohydrogen production for fuel production are extensively discussed.
Article
Energy & Fuels
Geetanjali Yadav, Sabarathinam Shanmugam, Ramachandran Sivaramakrishnan, Deepak Kumar, Thangavel Mathimani, Kathirvel Brindhadevi, Arivalagan Pugazhendhi, Karthik Rajendran
Summary: Microalgae-based wastewater treatment is proposed as a viable alternative to conventional activated sludge process, converting organics and nutrients in wastewater to algae and returning reclaimed water to the environment. Despite commercial potential, challenges and limitations exist that need to be addressed.
Article
Energy & Fuels
Kathirvel Brindhadevi, Susaimanickam Anto, Eldon R. Rene, Manigandan Sekar, Thangavel Mathimani, Nguyen Thuy Lan Chi, Arivalagan Pugazhendhi
Summary: This review focuses on the conversion of various microalgal and cyanobacterial biomasses into bio-oil and solid char products through pyrolysis and hydrothermal liquefaction. The impact of reaction temperature on the quantity and quality of bio-oil and solid char obtained from pyrolysis and hydrothermal liquefaction is comprehensively discussed in the review, providing opportunities for further research in this area.
Article
Energy & Fuels
Sabarathinam Shanmugam, Anjana Hari, Deepak Kumar, Karthik Rajendran, Thangavel Mathimani, A. E. Atabani, Kathirvel Brindhadevi, Arivalagan Pugazhendhi
Summary: The main hurdles in mechanized transportation are the depletion of fossil fuels and the high cost of alternative plant-based substrates for producing biofuels. Biofuels emerged as effective alternatives to reduce pollution caused by greenhouse gas emissions. Microalgae, as a third-generation feedstock, are an excellent resource due to their fast growth rate and higher carbohydrate content, providing a solution to the challenges faced by conventional agricultural crops.
Article
Energy & Fuels
Susaimanickam Anto, M. P. Sudhakar, Tharifkhan Shan Ahamed, Melvin S. Samuel, Thangavel Mathimani, Kathirvel Brindhadevi, Arivalagan Pugazhendhi
Summary: This review discusses the conversion of algal biomass to biochar and its use as a catalyst for producing alternative fuels. Activation methods are necessary for biochar to be used as a potential catalyst, with physical and chemical modes being commonly practiced.
Article
Chemistry, Physical
Sabarathinam Shanmugam, Thangavel Mathimani, Eldon R. Rene, V. Edwin Geo, A. Arun, Kathirvel Brindhadevi, Arivalagan Pugazhendhi
Summary: Biohythane, a blend of hydrogen with methane, is produced through the breakdown of organic substrates using sequential dark fermentation and anaerobic digestion. Improving its production rate and quality can be achieved by altering microbial consortium, substrate selection, reactor design, and implementing a two-stage fermentation system. Comparative studies show the superiority of biohythane over other biofuels.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Sabarathinam Shanmugam, Manigandan Sekar, Ramachandran Sivaramakrishnan, Tirath Raj, Ee Shen Ong, Alija Haydar Rabbani, Eldon R. Rene, Thangavel Mathimani, Kathirvel Brindhadevi, Arivalagan Pugazhendhi
Summary: The production of biohythane through anaerobic fermentation of lignocellulosic and algae biomass can yield biohythane with a specific composition; Using organic biomass-based substrates can minimize environmental impacts and achieve diversified production of high-value products; The biohythane yield is influenced by factors such as biomass type, organic loading rate, and pretreatment strategy.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Review
Engineering, Environmental
Gaurav Pant, Deviram Garlapati, Urvashi Agrawal, R. Gyana Prasuna, Thangavel Mathimani, Arivalagan Pugazhendhi
Summary: Genetically engineered microbes have shown higher degradative capacities in bioremediation compared to traditional physical and chemical methods. By transforming microbes with more potent proteins, engineered microbes can quickly adapt to various pollutants and offer a cost-effective and safe approach for environmental remediation.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Review
Green & Sustainable Science & Technology
B. Ramesh Kumar, Thangavel Mathimani, M. P. Sudhakar, Karthik Rajendran, Abdul-Sattar Nizami, Kathirvel Brindhadevi, Arivalagan Pugazhendhi
Summary: Algae have been investigated as a potential reserve of biofuel and bioactive compounds, with extracted compounds being studied in various sectors. This comprehensive review highlights the cultivation systems, biofuels, and value-added products obtained from algae, along with advanced extraction methods for fatty acids, vitamins, and nanoparticles.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2021)
Article
Energy & Fuels
S. Manigandan, P. Gunasekar, T. R. Praveenkumar, Jamal S. M. Sabir, Thangavel Mathimani, Arivalagan Pugazhendhi, Kathirvel Brindhadevi
Summary: An experimental study was conducted to determine the performance, noise, and emission characteristics of a two-cylinder diesel engine powered by Canola and Moringa oleifera blends. The study found that Moringa oleifera exhibited superior performance compared to canola blends, and the addition of multi-walled carbon nanotubes improved combustion and performance characteristics of the diesel engine.
Article
Energy & Fuels
Ramachandran Sivaramakrishnan, Sabarathinam Shanmugam, Manigandan Sekar, Thangavel Mathimani, Aran Incharoensakdi, Sang-Hyoun Kim, Anburajan Parthiban, V. Edwin Geo, Kathirvel Brindhadevi, Arivalagan Pugazhendhi
Summary: Hydrogen, as a renewable fuel, plays an important role in meeting the current energy demand and industrial growth. There are various pathways for biological hydrogen production, with different microorganisms and molecular approaches playing significant roles. Additionally, a thorough techno-economic analysis of factors involved in the scale-up of hydrogen production is crucial for its sustainability.
Review
Environmental Sciences
Pritam Das, V. P. Chandramohan, Thangavel Mathimani, Arivalagan Pugazhendhi
Summary: Algae are a significant feedstock option for bioenergy production through thermochemical conversion methods. By adjusting reaction conditions and parameters, the yield and quality of biofuel products can be influenced, thus affecting process efficiency. Among the various factors, reaction temperature and residence time are key factors that impact efficiency in the thermochemical conversion of algae biomass.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Review
Green & Sustainable Science & Technology
M. P. Sudhakar, K. Arunkumar, G. Dharani, Thangavel Mathimani
Summary: This article explores the potential use of seaweed as a substrate for bioethanol production. It discusses the classification and status of seaweed research, as well as the pretreatment, bioethanol production, and utilization of spent seaweed biomass.
ENERGY ECOLOGY AND ENVIRONMENT
(2023)
Article
Thermodynamics
Pengcheng Zhao, Jingang Wang, Liming Sun, Yun Li, Haiting Xia, Wei He
Summary: The production of green hydrogen through water electrolysis is crucial for renewable energy utilization and decarbonization. This research explores the optimal electrode configuration and system design of compactly-assembled industrial electrolyzer. The findings provide valuable insights for industrial application of water electrolysis equipment.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
V. Baiju, P. Abhishek, S. Harikrishnan
Summary: Thermally driven adsorption desalination systems (ADS) have gained attention as an eco-friendly solution for water scarcity. However, they face challenges related to low water productivity and scalability. To overcome these challenges, integrating ADS with other desalination technologies can create a small-scale hybrid system. This study proposes integrating ADS with a Thermo Electric Dehumidification (TED) unit to enhance its performance.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
C. X. He, Y. H. Liu, X. Y. Huang, S. B. Wan, Q. Chen, J. Sun, T. S. Zhao
Summary: A decentralized centroid multi-path RC network model is constructed to improve the temperature prediction accuracy compared to traditional RC models. By incorporating multiple heat flow paths and decentralizing thermal capacity, a more accurate prediction is achieved.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Chaoying Li, Meng Wang, Nana Li, Di Gu, Chao Yan, Dandan Yuan, Hong Jiang, Baohui Wang, Xirui Wang
Summary: There is an urgent need to shift away from heavy dependence on fossil fuels and embrace renewable energy sources, particularly in the energy-intensive oil refining process. This study presents an innovative concept called the Solar Oil Refinery, which applies solar energy in oil refining. A solar multi-energies-driven hybrid chemical oil refining system that utilizes solar pyrolysis and electrolysis has been developed, significantly improving solar utilization efficiency, cracking rate, and hydrogen yield.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Chao Ma, Guanghui Wang, Dingbiao Wang, Xu Peng, Yushen Yang, Xinxin Liu, Chongrui Yang, Jiaheng Chen
Summary: This study proposes a bio-inspired fish-tail wind rotor to improve the wind power efficiency of the traditional Savonius rotor. Through transient simulations and orthogonal experiments, the key factors affecting the performance are identified. A response surface model is constructed to optimize the power coefficient, resulting in an improvement of 9.4% and 6.6% compared to the Savonius rotor.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Sina Bahmanziari, Abbas-Ali Zamani
Summary: This paper proposes a new framework for improving electrical energy harvesting from piezoelectric smart tiles through a combination of magnetic plucking, mechanical impact, and mechanical vibration force mechanisms. Experimental results demonstrate a significant increase in energy yield and average energy harvesting time compared to other mechanisms.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Nanjiang Dong, Tao Zhang, Rui Wang
Summary: This study establishes a multiobjective mixed-variable configuration optimization model for a comprehensive combined cooling, heating, and power energy system, and proposes an efficient generating operator to optimize this model. The experimental results show that the proposed algorithm performs better than other state-of-the-art algorithms.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Ahmed E. Mansy, Eman A. El Desouky, Tarek H. Taha, M. A. Abu-Saied, Hamada El-Gendi, Ranya A. Amer, Zhen-Yu Tian
Summary: This study aims to convert office paper waste into bioethanol through a sustainable pathway. The results show that physiochemical and enzymatic hydrolysis of the waste can yield a high glucose concentration. The optimal conditions were determined using the Box-Behnken design, and a blended membrane was used for ethanol purification.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Sven Klute, Marcus Budt, Mathias van Beek, Christian Doetsch
Summary: Heat pumps are crucial for decarbonizing heat supply, and steam generating heat pumps have the potential to decarbonize the industrial sector. This paper presents the current state, technical and economic data, and modeling principles of steam generating heat pumps.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Le Zhang, To-Hung Tsui, Yen Wah Tong, Pruk Aggarangsi, Ronghou Liu
Summary: This study investigates the effectiveness of a current-carrying-coil-based magnetic field in promoting anaerobic digestion of chicken manure. The results show that the applied magnetic field increases methane yield, decreases carbon dioxide production, and reduces the concentration of ammonia nitrogen. Microbial community analysis reveals the enrichment of certain methanogenic genera and enhanced metabolic pathways. Pilot-scale experiments confirm the technical effectiveness of the magnetic field assistance in enhancing anaerobic digestion of chicken manure.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Bo Chen, Ruiqing Ma, Yang Zhou, Rui Ma, Wentao Jiang, Fan Yang
Summary: This paper presents an advanced energy management strategy for fuel cell hybrid electric heavy-duty vehicles, focusing on speed planning and energy allocation. By utilizing predictive co-optimization control, this strategy ensures safe inter-vehicle distance and minimizes energy demand. Simulation results demonstrate the effectiveness of the proposed method in reducing fuel cell degradation cost and overall operation cost.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Fabio Fatigati, Roberto Cipollone
Summary: Organic Rankine Cycle-based microcogeneration systems that use solar sources to generate electricity and hot water can help reduce CO2 emissions in residential energy-intensive sectors. The adoption of a recuperative heat exchanger in these systems improves efficiency, reduces thermal power requirements, and saves on electricity costs.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Lipeng He, Renwen Liu, Xuejin Liu, Xiaotian Zheng, Limin Zhang, Jieqiong Lin
Summary: This research proposes a piezoelectric-electromagnetic hybrid energy harvester (PEHEH) for low-frequency wave motion and self-sensing wave environment monitoring. The PEHEH shows promising power output and the ability to self-power and self-sense the wave environment.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Shangling Chu, Yang Liu, Zipeng Xu, Heng Zhang, Haiping Chen, Dan Gao
Summary: This paper studies a distributed energy system integrated with solar and natural gas, analyzes the impact of different parameters on its energy utilization and emissions reduction, and obtains the optimal solution through an optimization algorithm. The results show that compared to traditional separation production systems, this integrated system achieves higher energy utilization and greater reduction in carbon emissions.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Qingpu Li, Yaqi Ding, Guangming Chen, Yongmei Xuan, Neng Gao, Nian Li, Xinyue Hao
Summary: This paper proposes and studies a piston-type thermally-driven pump with a structure similar to a linear compressor, aiming to eliminate the high-quality energy consumption of existing pumps and replace mechanical pumps. The coupling mechanism of working fluid flow and element dimension is analyzed based on force analysis, and experimental data analysis is used to determine the pump operation stroke. Theoretical simulation is conducted to analyze the correlation mechanism of the piston assembly. The research shows that the thermally-driven pump can greatly reduce power consumption and has potential for industrial applications.
ENERGY CONVERSION AND MANAGEMENT
(2024)