Article
Environmental Sciences
Semra Ocak, Sevil Acar
Summary: Turkey heavily relies on fossil fuels as an energy importing country, leading to environmental issues and energy security concerns. This study in the Marmara Region highlights the potential of using biowastes to meet more than half of the region's electricity demand, providing cost-effective options such as direct combustion of agricultural wastes and conversion of animal wastes to biogas in CHP plants.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Energy & Fuels
Zuocai Dai, Zhengxian Chen, Abdellatif Selmi, Kittisak Jermsittiparsert, Nebojsa M. Denic, Zoran Nesic
Summary: The study developed a machine learning model for predicting the higher heating values of biomass based on proximate analysis. The input variables' influence on the higher heating value was determined based on prediction accuracy. Results showed that volatile matter had the highest correlation coefficient, while ash had the smallest relevance on the higher heating value of biomass.
BIOMASS CONVERSION AND BIOREFINERY
(2021)
Article
Thermodynamics
Aysegul Abusoglu, Alperen Tozlu, Amjad Anvari-Moghaddam
Summary: This paper explores the district heating potentials of wastewater treatment plants based on their biogas, electricity, and heat productions, presenting two district heating scenarios. It is found that waste heat from cogeneration can effectively provide heating services, and the use of biogas can meet the energy needs of more households.
Article
Thermodynamics
Jinping Li, Chang Gan, Jianjian Zhou, Vojislav Novakovic
Summary: With the rapid urbanization of China, many farmers are in need of a cheaper energy source for heating and cooking. This paper proposes a novel mode of biomass direct combustion heating and centralized biogas supply system, which is verified in Nan'an community of Wuwei City, China. The study analyzes the energy conservation, thermodynamic performance, and environmental benefits of the system, showing its potential in achieving China's Double Carbon goal.
ENERGY CONVERSION AND MANAGEMENT
(2023)
Review
Energy & Fuels
Andrew P. Richards, Denver Haycock, Jacob Frandsen, Thomas H. Fletcher
Summary: Accurately measuring a fuel's heating value is crucial for classification, with various empirical correlations based on primary organic elemental composition available for predicting heating values. However, correlations for coal chars and tars are lacking, and the choice of model becomes more crucial for biomass fuels and unique fuel types like propellants and explosives.
Article
Chemistry, Multidisciplinary
Zongliang Zuo, Chuanjia Qi, Jinshuang Ma, Huiping Sun, Siyi Luo, Dongdong Ren, Yifan Zhang, Jianxiang Guo, Zhanjun Cheng, Chang Li
Summary: This paper discusses the combustion characteristics and reaction paths of low calorific value biogas. Preheating improves combustion efficiency and NOx control, but increases NO formation. When the air equivalence ratio changes from 1.0 to 0.8, NO formation rates decrease.
FRONTIERS IN CHEMISTRY
(2022)
Article
Energy & Fuels
Maria Margarida Mateus, Joao Moura Bordado, Rui Galhano dos Santos
Summary: This study developed a model based on a dataset of 54 samples to correlate carbon, hydrogen, and oxygen content with HHV for biomass conversion into liquid fuels. The model was compared with others in literature and validated with nine samples, showing excellent prediction accuracy. The model demonstrated good precision and performance with a low absolute bias error of 0.01% and absolute average error of 1.48%.
Article
Biochemistry & Molecular Biology
Babak Aghel, Salah I. I. Yahya, Abbas Rezaei, Falah Alobaid
Summary: This study used the Elman recurrent neural network (ENN) to predict the higher heating value (HHV) of different biomass samples based on ultimate and proximate compositional analyses. After optimization, the ENN model showed the highest prediction and generalization accuracy, and provided a clear understanding of the dependency of HHV on various components of biomass feedstocks.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Energy & Fuels
Yury Maksimuk, Zoya Antonava, Vladimir Krouk, Alina Korsakova, Vera Kursevich
Summary: Experimental determination of HHV, as well as various carbon, hydrogen, sulphur, nitrogen, chlorine, ash, lignin and extractives contents in different samples, was conducted. Recommendations for HHV of cellulose, hemicellulose, lignin, and extractives for different types of biomass were made. Through analysis, two equations were proposed for predicting biomass HHV based on lignin and carbon contents with an error no worse than 2.7%.
Article
Multidisciplinary Sciences
Penlap Landry Herve, Tiendjou Tiombou Michael, Ngohe-Ekam Paul Salomon, Kenfack Joseph, Mbounguen Kenang Raphael, Nganhou Jean
Summary: This paper focuses on a CCHP system that combines biogas from anaerobic digestion and syngas produced by biomass gasification in an internal combustion engine. The study shows that the percentage of methane in biogas and the mass ratio of the mixture have an impact on energy efficiency. Furthermore, increasing the gasification temperature and reducing the biogas temperature can improve the system's efficiency.
Review
Agronomy
Zhiwei Liang, Andras Nemenyi, Gergo Peter Kovacs, Csaba Gyuricza
Summary: Bamboo is seen as a promising solution to the energy crisis and climate change due to its rapid growth and high-value products. It contains a significant amount of cellulose and hemicellulose, making it an ideal raw material for energy production. This article reviews different processes of producing bioethanol, biogas, biochar, and bio-oil from bamboo biomass using various techniques, and discusses the challenges and opportunities associated with these conversion technologies. It also provides an evaluation system for energy bamboo species to optimize the utilization efficiency of bamboo biomass energy.
GLOBAL CHANGE BIOLOGY BIOENERGY
(2023)
Article
Energy & Fuels
Beril Gundogan, Gunnur Kocar
Summary: This paper reveals the cultivation of Cynara cardunculus L. in different regions of Turkey and identifies the installation of active biogas plants in these areas. It explores the utilization of Cynara cardunculus L. residues as a biomass source, particularly in the Izmir region. The study highlights the potential of Cynara cardunculus L. residues and their utilization for biogas production.
BIOENERGY RESEARCH
(2022)
Article
Biotechnology & Applied Microbiology
Iara Barbosa Magalhaes, Alexia Saleme Aona de Paula Pereira, Thiago Abrantes Silva, Natalia dos Santos Renato
Summary: This study proposed equations to predict the higher heating value (HHV) of microalgae biomass based on proximate and ultimate analysis. The equation combining these analyses showed the highest statistical fit and accuracy.
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
(2022)
Article
Energy & Fuels
Bing Song, Martin Cooke-Willis, Beatrix Theobald, Peter Hall
Summary: The use of thermoplastics as binders in sawdust briquetting improves the strength and stability of the briquettes. Results show that briquettes with 10% PP prepared at 300 kN exhibit superior durability in outdoor weather tests.
Review
Green & Sustainable Science & Technology
Francis Makamure, Patrick Mukumba, Golden Makaka
Summary: This review paper investigated the substrate heating methods in bio-digesters and found that in-vessel heating approach is the most effective in distributing heat and maintaining stable temperature for optimal biogas production. It was also highlighted that both insulation and substrate heating are necessary for temperature stability in digesters. Heating cost is identified as a limiting factor, which can be minimized through the use of recovered heat from CHP plants and solar radiation.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2021)