Article
Chemistry, Physical
F. Betol Oflaz, Harun Koku
Summary: A custom pH control system was installed to address acidification issues in photofermentative hydrogen production from sugar-based nutrients, achieving a 48-day continuous hydrogen production run with molasses. The highest hydrogen productivity reached 0.69 molH(2)/(m(3).h).
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Anjana Pandey, Pallavi Sinha, Ashutosh Pandey
Summary: In this study, the potential of Spirulina platensis hydrolysate as a substrate for biohydrogen production through sequential fermentative and photofermentative processes was evaluated. Response Surface Methodology was used to determine the optimal photofermentation conditions. The experiments showed that factors such as pH, dilution fold of fermentate, and Fe(II) sulfate concentration significantly affected hydrogen production, with promising results obtained under specific conditions in the second stage experiment.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Review
Energy & Fuels
Jey-R S. Ventura, Saul M. Rojas, Ruby Lynn G. Ventura, Fidel Rey P. Nayve, Nacita B. Lantican
Summary: Fossil fuel consumption leads to resource depletion and climate change, prompting a global interest in alternative energy sources, with a focus on biological fermentation for hydrogen production. The Philippines' agricultural abundance positions it as a promising candidate for biohydrogen production from biomass, including various agricultural wastes.
BIOMASS CONVERSION AND BIOREFINERY
(2021)
Article
Multidisciplinary Sciences
Jonathan Deseure, Jamila Obeid, John C. Willison, Jean-Pierre Magnin
Summary: This study examined the experimental results of hydrogen production through anaerobic photosynthesis using the purple non-sulfur bacterium Rhodobacter capsulatus. The research utilized continuous stirred tank reactors (CSTR) technique to analyze kinetic parameters and models like Luedeking-Piret and Gompertz to simulate hydrogen production and bacterial growth. The mathematical description suggested that photofermentation is a more promising method than dark fermentation for converting organic substrates into biogas.
Article
Chemistry, Physical
Kuo-Shing Lee, Shin-Liang Chen, Chiu-Yue Lin, Jo-Shu Chang
Summary: The study found that the optimal biohydrogen production efficiency was achieved at a substrate concentration of 70 g COD/L. The best hydrogen production rate, hydrogen yield, and overall hydrogen production efficiency were observed with a hydraulic retention time of 6 hours. Pre-treatment of the substrate with heating significantly enhanced fermentation performance.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Biotechnology & Applied Microbiology
Violette Turon, Stephane Ollivier, Gregory Cwicklinski, John C. Willison, Zoe Anxionnaz-Minvielle
Summary: Hydrogen production by Rhodobacter capsulatus requires specific mixing conditions and an innovative plate-type photobioreactor design with meandering channels has been proposed. The flow rate of hydrogen production was significantly increased by testing different bacterial concentrations and the maximum flow rate achieved was among the highest reported values for R. capsulatus, showing great potential for future scale-up of similar reactors.
BIOTECHNOLOGY AND BIOENGINEERING
(2021)
Article
Energy & Fuels
Yi Ren, Shuai Tang, Fan Hong, Weizhong Jiang, Zhidan Liu, Haifeng Lu, Chaoyuan Wang, Buchun Si
Summary: Iron-based additives, specifically milli-magnetite, have the potential to enhance biohydrogen production from biowaste such as potato peels. The addition of milli-magnetite at a concentration of 800 mg/L resulted in a 3.20-fold increase in hydrogen production compared to the control group. The improved hydrogen production can be attributed to the involvement of Fe2+/Fe3+ produced by the dissolution and corrosion of milli-magnetite in the synthesis of dehydrogenase and hydrogenase, leading to increased enzymatic activity and a shift in metabolic pathways.
Article
Energy & Fuels
Dahbia Akroum-Amrouche, Hamza Akroum, Hakim Lounici
Summary: This paper reviews the photo-fermentative biohydrogen production using Rhodobacter sphaeroides, a promising technology, and discusses several strategies to improve its economic efficiency, cost-effectiveness, and productivity. The use of co-cultures and genetic modification techniques have been shown to enhance the yield and rate of hydrogen production. Additionally, employing organic wastes as substrates in various reactor designs has been proven to achieve high conversion efficiency of the substrate and light energy.
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
(2023)
Article
Thermodynamics
F. S. Moreira, M. S. Rodrigues, L. M. Sousa, F. R. X. Batista, J. S. Ferreira, V. L. Cardoso
Summary: This study investigated the production of hydrogen using photofermentation with a co-culture of Enterobacter cloacae and either Rhodobacter capsulatus or Rhodopseudomonas palustris, along with the addition of glucose or lactose from milk whey permeate. The co-culture system achieved high hydrogen productivity and organic acid concentration.
Article
Chemistry, Physical
Chayanika Putatunda, Manya Behl, Preeti Solanki, Samriti Sharma, Shashi Kant Bhatia, Abhishek Walia, Ravi Kant Bhatia
Summary: Biohydrogen is considered a versatile future fuel that can replace fossil fuels in various sectors, and photofermentation is an attractive approach due to its efficiency and reduced environmental impacts. However, there are still significant challenges in commercial biohydrogen production through photofermentation. This review provides updated information on new technologies and discusses the prospects for the future of green biohydrogen production.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Energy & Fuels
Chaoyang Lu, Guangtao Wang, Quanguo Zhang, Xudong Yang, Jicai Yu, Tao Liu, Francesco Petracchini, Zhiping Zhang, Yong Sun, Danping Jiang, Xiaoyu Liang, Yameng Li, Yang Zhang, Tian Zhang, Huan Zhang
Summary: Biorefinery technology contributes to the realization of the Paris Agreement, China's carbon peak and carbon neutralization. This study investigated the gas, liquid, and kinetic characteristics of four biorefinery methods using corn stover as the raw material. The results provide insights into the efficient utilization of biomass resources and a comprehensive evaluation of biorefinery technology.
Article
Energy & Fuels
Tinku Casper D'Silva, Sameer Ahmad Khan, Subodh Kumar, Dushyant Kumar, Adya Isha, Saptashish Deb, Saurabh Yadav, Biju Illathukandy, Ram Chandra, Virendra Kumar Vijay, Paruchuri M. V. Subbarao, Zoltan Bagi, Kornel L. Kovacs, Liang Yu, Bhushan P. Gandhi, Kirk T. Semple
Summary: Green and clean hydrogen production has gained importance for sustainable renewable energy fuel needs. The dark fermentation (DF) process for biohydrogen production from organic wastes is environmentally friendly, energy-efficient, and cost-effective. This article explores the feasibility of transforming the DF process into a biorefinery system and discusses factors influencing its performance, as well as the need for downstream processes and hydrogen purification techniques. Furthermore, it highlights opportunities, challenges, and research directions for enhancing hydrogen yield and microbial metabolism, and analyzes the commercialization status and policy-level issues from the Indian perspective.
Article
Energy & Fuels
Satya Ranjan Das, Nitai Basak
Summary: Potato waste can be effectively used as a substrate for hydrogen production through combined dark and photo fermentation, with optimized conditions leading to a high hydrogen yield.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Chemistry, Physical
Lilit Hakobyan, Lilit Gabrielyan, Syuzanna Blbulyan, Armen Trchounian
Summary: Selecting the right source for biohydrogen production is crucial for bacterial metabolism. While pure organic substrates can generate H-2 quickly, they come at a higher cost, making the use of industrial wastes a more economical option for energy generation. The growth medium containing optimal amount of wastes could potentially be a successful alternative to expensive media for high H-2 yield in Rhodobacter sphaeroides during photofermentation.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Banu Taskan, Emre Oguz Koroglu, Ergin Taskan
Summary: This study found that low inoculum/substrate ratios in the fermentation process caused excessive accumulation of metabolic products and a significant decrease in pH, resulting in decreased hydrogen production efficiency. Cladophora sp. biomass was proven to be an efficient fermentation feedstock for biohydrogen production.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Kamal Elkahlout, Emrah Sagir, Siamak Alipour, Harun Koku, Ufuk Gunduz, Inci Eroglu, Meral Yucel
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2019)
Article
Chemistry, Physical
Asli Boran, Serdar Erkan, Inci Eroglu
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2019)
Article
Chemistry, Physical
Muazzez Gurgan, Harun Koku, Inci Eroglu, Meral Yucel
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2020)
Article
Biotechnology & Applied Microbiology
Onur Bulut, Dilan Akin, Cagla Sonmez, Aysegul Oktem, Meral Yucel, Huseyin Avni Oktem
JOURNAL OF APPLIED PHYCOLOGY
(2019)
Article
Microbiology
Nilufer Afsar Erkal, Muazzez Gurgan Eser, Ebru Ozgur, Ufuk Gunduz, Inci Eroglu, Meral Yucel
ARCHIVES OF MICROBIOLOGY
(2019)
Article
Chemistry, Physical
Burcu Ozsoy Demiriz, Gokhan Kars, Meral Yucel, Inci Eroglu, Ufuk Gunduz
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2019)
Article
Crystallography
Gaye O. Cakal, Berk Baltaci, Goknur Bayram, Saim Ozkar, Inci Eroglu
JOURNAL OF CRYSTAL GROWTH
(2020)
Article
Chemistry, Physical
Muazzez Gurgan, Harun Koku, Inci Eroglu, Meral Yucel
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2020)
Article
Chemistry, Physical
Berna Sezgin, Yilser Devrim, Tayfur Ozturk, Inci Eroglu
Summary: The most critical development in conventional underwater applications in recent years is the use of hydrogen energy systems, particularly Air Independent Propulsion (AIP) systems powered by Proton Exchange Membrane (PEM) fuel cells. These systems have gained worldwide interest due to their advantages in terms of longer endurance time, silent operation, environmental friendliness, high efficiency, and low thermal dissipation. However, the storage of hydrogen presents a significant challenge in terms of quality, weight, and volume. Different hydrogen storage techniques are required for unmanned underwater vehicles with varying volume and weight requirements.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Meteorology & Atmospheric Sciences
Atsushi Inagaki, Yovita Wangsaputra, Manabu Kanda, Meral Yucel, Naoyuki Onodera, Takayuki Aoki
Article
Green & Sustainable Science & Technology
Lars odegaard Bentsen, Narada Dilp Warakagoda, Roy Stenbro, Paal Engelstad
Summary: This study investigates uncertainty modeling in wind power forecasting using different parametric and non-parametric methods. Johnson's SU distribution is found to outperform Gaussian distributions in predicting wind power. This research contributes to the literature by introducing Johnson's SU distribution as a candidate for probabilistic wind forecasting.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Xing Liu, Qiuchen Wang, Yunhao Wen, Long Li, Xinfang Zhang, Yi Wang
Summary: This study analyzes the characteristics of process parameters in three lean gas ethane recovery processes and establishes a prediction and multiobjective optimization model for ethane recovery and system energy consumption. A new method for comparing ethane recovery processes for lean gas is proposed, and the addition of extra coolers improves the ethane recovery. The support vector regression model based on grey wolf optimization demonstrates the highest prediction accuracy, and the multiobjective multiverse optimization algorithm shows the best optimization performance and diversity in the solutions.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Cairong Song, Haidong Yang, Xian-Bing Meng, Pan Yang, Jianyang Cai, Hao Bao, Kangkang Xu
Summary: The paper proposes a novel deep learning-based prediction framework, aTCN-LSTM, for accurate cooling load predictions. The framework utilizes a gate-controlled multi-head temporal convolutional network and a sparse probabilistic self-attention mechanism with a bidirectional long short-term memory network to capture both temporal and long-term dependencies in the cooling load sequences. Experimental results demonstrate the effectiveness and superiority of the proposed method, which can serve as an effective guide for HVAC chiller scheduling and demand management initiatives.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Zhe Chen, Xiaojing Li, Xianli Xia, Jizhou Zhang
Summary: This study uses survey data from the Loess Plateau in China to evaluate the impact of social interaction on the adoption of soil and water conservation (SWC) technology by farmers. The study finds that social interaction increases the likelihood of farmers adopting SWC, and internet use moderates this effect. The positive impact of social interaction on SWC adoption is more pronounced for farmers in larger villages and those who join cooperative societies.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Chenghua Zhang, Yunfei Yan, Kaiming Shen, Zongguo Xue, Jingxiang You, Yonghong Wu, Ziqiang He
Summary: This paper reports a novel method that significantly improves combustion performance, including heat transfer enhancement under steady-state conditions and adaptive stable flame regulation under velocity sudden increase.
JOURNAL OF CLEANER PRODUCTION
(2024)