Article
Thermodynamics
Tomas Sitek, Jiri Pospisil, Jan Polacik, Radomir Chylek
Summary: This paper investigates the particulate matter emissions of 27 different types of solid biofuels through experimental determination using thermogravimetric analysis. The study reveals a relationship between particulate matter emissions and sample ash content and volatile matter content.
Article
Agricultural Engineering
Christopher Nzediegwu, M. Anne Naeth, Scott X. Chang
Summary: The HTC process can convert wet/dry biomass into hydrochars for various applications, with the temperature playing a significant role in the properties of the hydrochars. Lignocellulosic and non-lignocellulosic feedstocks exhibit different behaviors under varying HTC temperatures.
BIORESOURCE TECHNOLOGY
(2021)
Article
Chemistry, Applied
Ivan Gogolev, Toni Pikkarainen, Juho Kauppinen, Markus Hurskainen, Anders Lyngfelt
Summary: The chemical looping combustion of wood pellets, wood char, and straw pellets with different oxygen carriers was studied to investigate alkali emissions. Different fuel types and oxygen carriers had varying impacts on the particle size distributions and stable alkali species compositions. Thermodynamic modeling predicted the stability of different alkali species at 800 degrees Celsius for each fuel type.
FUEL PROCESSING TECHNOLOGY
(2022)
Article
Environmental Sciences
Chunlin Zhang, Li Bai, Qian Yao, Jiangyong Li, Hao Wang, Liran Shen, Olli Sippula, Jun Yang, Jinping Zhao, Jun Liu, Boguang Wang
Summary: This study investigated PCDD/F emissions from industrial boilers fired with different biomass fuels and found that some emissions exceeded limit values, with 2,3,4,7,8-PeCDF potentially being a good indicator of dioxin-induced toxicity. The emission factor varied among the boiler types, with biomass-pellet-fired boilers having the highest emissions.
ENVIRONMENTAL POLLUTION
(2022)
Article
Energy & Fuels
Ivana Stanicic, Joakim Brorsson, Anders Hellman, Tobias Mattisson, Rainer Backman
Summary: Chemical looping combustion (CLC) enables efficient combustion of hydrocarbon fuels while producing a gas stream with high CO2 concentrations. This paper investigates the fate of ash elements in a system using iron-based oxygen carriers and provides a comprehensive comparison with previous experimental data. The study finds that the choice of oxygen carriers significantly influences the behavior of ash elements.
Article
Green & Sustainable Science & Technology
Kunlanan Wiranarongkorn, Picharporn Phajam, Karittha Im-orb, Dang Saebea, Amornchai Arpornwichanop
Summary: Many biomass power plants lack flexibility, have high CO2 emissions, and use only one fuel type. This study introduces a new methodology to assess the use of multiple biomass types in power plants. Results show that using a mix of biomass residues in different regions of Thailand is beneficial, but high alkali metal oxides in biomass from the south can lead to fouling issues. Generating electricity with mixed biomass fuels is more efficient and requires less fuel consumption compared to single-type biomass. The study also found that capturing CO2 emissions from exhaust gases using suitable amine-based absorbents can be done with 90.82% efficiency.
Article
Energy & Fuels
Niraj Panthi, Harsh Goyal, Abdullah AlRamadan, Gaetano Magnotti
Summary: Previous studies have shown that isobaric combustion using n-heptane/diesel fuel can improve engine efficiency compared to conventional diesel combustion. However, the close-coupled injections in isobaric combustion result in higher soot emissions due to spray-flame interactions. This study investigates the use of multiple injectors and different fuels to reduce soot emissions.
Article
Thermodynamics
Senem Sezer, Furkan Kartal, Ugur Ozveren
Summary: In this study, a machine learning approach based on artificial neural network (ANN) was developed to predict the instantaneous combustion index for biomass combustion process without using instruments and complex equations. The results showed good agreement between the predicted and measured values of the combustion index.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Article
Engineering, Environmental
Daofeng Mei, Amir H. Soleimanisalim, Anders Lyngfelt, Henrik Leion, Carl Linderholm, Tobias Mattisson
Summary: Manganese ore EB exhibits higher reactivity with syngas but lower reaction rate with CH4 compared to other manganese ores. Improving the contact between volatiles and bed material is crucial for enhancing combustion performance in the CLC process.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Thermodynamics
Luke Stover, Christian Caillol, Bruno Piriou, Claire Mayer-Laigle, Xavier Rouau, Gilles Vaitilingom
Summary: An alternative strategy for implementing biofuels in engines is to use minimally refined biofuels and redirect savings to engine modifications. However, the combustion of micronized biomass powder has not been thoroughly studied compared to the widely researched use of coal dust in engines.
Article
Thermodynamics
Yongsheng Jia, Yingjie Wang, Qi Zhang, Hongwei Rong, Yuhuan Liu, Bo Xiao, Dabin Guo, Mahmood Laghari, Roger Ruan
Summary: This study investigates the relationship between particle size of sawdust and gas-carrying capacity, as well as its influence on combustion temperature. The results show that sawdust particles with a size of 150-180 μm have the best gas-carrying performance and highest combustion temperature.
Article
Environmental Sciences
Fumikazu Taketani, Takuma Miyakawa, Masayuki Takigawa, Masahiro Yamaguchi, Yuichi Komazaki, Petr Mordovskoi, Hisahiro Takashima, Chunmao Zhu, Shigeto Nishino, Yasunori Tohjima, Yugo Kanaya
Summary: Ship-based measurements of marine aerosol particles and trace gases were conducted in the Arctic Ocean, Northwest Pacific Ocean, and Bering Sea. The study found lower black carbon concentrations over the Arctic Ocean compared to a nearby ground-based station, suggesting the need to use these measurements as a benchmark for atmospheric transport models. The study also confirmed the long-range transport of Siberian forest fire plumes and their influence on high black carbon and carbon monoxide levels over the Bering Sea.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Green & Sustainable Science & Technology
Jan Polacik, Tomas Sitek, Jiri Pospisil, Ladislav Snajdarek, Martin Lisy
Summary: The emission of fine particles from biomass boilers and stoves poses health risks. This study examined the real emissions from small biomass boilers and residential stoves in Central Europe, comparing the characteristics of emissions under different fuels and operating cycles.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Energy & Fuels
Atmadeep Bhattacharya, Ali Shahanaghi, Ossi Kaario, Ville Vuorinen, Rupali Tripathi, Teemu Sarjovaara
Summary: This study investigates the effects of using renewable oxygenates DMF and DME as alternatives to fossil fuels for gasoline engines, showing that the ignition inhibiting effect of DMF dominates over DME at certain conditions while DME enhances ignition at others. Additionally, DME is found to mitigate additional soot emissions when blended with TPRF, highlighting the potential benefits of using these renewable oxygenates in gasoline engines.
Article
Chemistry, Applied
Daofeng Mei, Amir H. Soleimanisalim, Carl Linderholm, Anders Lyngfelt, Tobias Mattisson
Summary: Testing a new manganese ore as oxygen carrier in Chemical Looping Combustion (CLC) with different biomass fuels showed high reactivity and low oxygen demand. Controlling temperature, solids circulation, and fuel power can improve carbon capture efficiency in the experiment.
FUEL PROCESSING TECHNOLOGY
(2021)
Article
Environmental Sciences
Douglas S. Hamilton, J. Keith Moore, Almut Arneth, Tami C. Bond, Ken S. Carslaw, Stijn Hantson, Akinori Ito, Jed O. Kaplan, Keith Lindsay, Lars Nieradzik, Sagar D. Rathod, Rachel A. Scanza, Natalie M. Mahowald
GLOBAL BIOGEOCHEMICAL CYCLES
(2020)
Article
Environmental Sciences
Luke Conibear, Edward W. Butt, Christoph Knote, Nicholas L. Lam, Stephen R. Arnold, Kushal Tibrewal, Chandra Venkataraman, Dominick Spracklen, Tami C. Bond
ENVIRONMENTAL RESEARCH LETTERS
(2020)
Article
Energy & Fuels
Mariam Fawaz, Chris Lautenberger, Tami C. Bond
Article
Meteorology & Atmospheric Sciences
S. D. Rathod, D. S. Hamilton, N. M. Mahowald, Z. Klimont, J. J. Corbett, T. C. Bond
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2020)
Article
Geosciences, Multidisciplinary
Douglas S. Hamilton, Rachel A. Scanza, Sagar D. Rathod, Tami C. Bond, Jasper F. Kok, Longlei Li, Hitoshi Matsui, Natalie M. Mahowald
GEOPHYSICAL RESEARCH LETTERS
(2020)
Article
Environmental Sciences
Tianye Sun, Colin M. Zarzycki, Tami C. Bond
Summary: This study investigates how model resolution impacts the comparison between model simulations and measurements of surface black carbon at urban and rural monitoring network sites in the U.S. The findings show significant discrepancies in simulated BC concentrations at different resolutions, with varying levels of over- and under-prediction. Increasing resolution from 2 degrees to 0.5 degrees can result in both over- and under-prediction at rural sites, with an average discrepancy of 6%.
ATMOSPHERIC ENVIRONMENT
(2021)
Article
Engineering, Environmental
Robert M. Weltman, Rufus D. Edwards, Lauren T. Fleming, Ankit Yadav, Cheryl L. Weyant, Brigitte Rooney, John H. Seinfeld, Narendra K. Arora, Tami C. Bond, Sergey A. Nizkorodov, Kirk R. Smith
Summary: The study highlights the discrepancy between controlled emissions testing in laboratories and real-world emissions during normal use of cookstoves. Results indicate that the cookstoves may have a net cooling impact on the climate when considering factors such as nonrenewable biomass harvesting and various emissions, making them close to climate neutral in terms of primary PM2.5 emissions.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Engineering, Environmental
Tami C. Bond, Angela Bosco-Lauth, Delphine K. Farmer, Paul W. Francisco, Jeffrey R. Pierce, Kristen M. Fedak, Jay M. Ham, Shantanu H. Jathar, Sue VandeWoude
Summary: The inability to effectively communicate how infectious diseases spread in human environments has led to avoidance of interactions during the COVID-19 pandemic. The authors introduce a metric, Effective ReBreathed Volume (ERBV), to quantify transmission and analyze the impact of different particle sizes and interventions on spreading. This framework helps in identifying transmission modes and effective interventions, supporting mitigation decisions in emerging situations.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Review
Geochemistry & Geophysics
Douglas S. Hamilton, Morgane M. G. Perron, Tami C. Bond, Andrew R. Bowie, Rebecca R. Buchholz, Cecile Guieu, Akinori Ito, Willy Maenhaut, Stelios Myriokefalitakis, Nazli Olgun, Sagar D. Rathod, Kerstin Schepanski, Alessandro Tagliabue, Robert Wagner, Natalie M. Mahowald
Summary: Atmospheric deposition plays a crucial role in supplying nutrients to marine phytoplankton, which is the base of marine food webs. Understanding the spatial and temporal variability of nutrient-bearing aerosols from various sources and their impact on the ocean is essential for studying marine ecosystems.
ANNUAL REVIEW OF MARINE SCIENCE
(2022)
Article
Environmental Sciences
Tami C. Bond, Christian L'Orange, Paul R. Medwell, George Sizoomu, Samer Abdelnour, Verena Brinkmann, Philip Lloyd, Crispin Pemberton-Pigott
ENVIRONMENTAL RESEARCH LETTERS
(2022)
Article
Environmental Sciences
Xiaoying Li, Sierra Clark, Emily Floess, Jill Baumgartner, Tami Bond, Ellison Carter
Summary: The study compared the impact of different household fuel use patterns on outdoor air pollution and personal exposure in two neighboring communities in northern China. The results showed that while the coal village had higher outdoor PM2.5 concentrations than the gas village, personal exposure was lower, and the chemical composition of exposure was also different.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Sagar D. Rathod, Tami C. Bond, Zbigniew Klimont, Jeffrey R. Pierce, Natalie Mahowald, Chaitri Roy, John Thompson, Ryan P. Scott, Karin Olson Hoal, Peter Rafaj
Summary: Shifting from fossil fuels to renewable energy is crucial for limiting global temperature rise. However, the mining and smelting processes required for renewable energy technologies emit significant amounts of PM2.5 particles. The future PM2.5 emissions from mining and smelting to meet the metal demand of renewable energy technologies are estimated to contribute 10%-30% of total anthropogenic primary PM2.5 combustion emissions in many countries. The concentration of mineral reserves leads to regional impacts.
ENVIRONMENTAL RESEARCH LETTERS
(2022)
Article
Geosciences, Multidisciplinary
S. D. Rathod, D. S. Hamilton, L. Li, N. M. Mahowald, H. Matsui, J. R. Pierce, T. C. Bond
Summary: The long-term impacts of anthropogenic emissions on the iron cycle and climate are still unclear. This study investigates the effects of iron mineralogy on radiative and oceanic interactions, which were not considered in previous studies. Simulations and estimates show the global mean direct radiative forcing and CO2 sequestration due to enhanced phytoplankton productivity. These impacts can be more significant in specific regions.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Environmental Sciences
Nicholas L. Lam, Varun Goel, Max Blasdel, Li Xu, Ilse Ruiz-Mercado, Bora Ozaltun, Lama Aoudi, James Whitacre, Tami C. Bond
Summary: Household access to clean energy is essential for public health and environmental preservation in low- and middle-income countries. This study proposes a hierarchy of reduction potentials for household energy emissions, taking into account various implementation barriers such as distributional, technical, economic, and market factors. By applying this framework to India, the researchers found that implementing reduction programs within a certain distance from urban centers can achieve a significant portion of the theoretical reduction potential. Additionally, the study emphasizes the importance of considering the factors that affect transitions to clean energy solutions rather than solely quantifying baseline emissions in emission inventory development.
ENVIRONMENTAL RESEARCH LETTERS
(2023)
Article
Environmental Sciences
Mariam Fawaz, Anita Avery, Timothy B. Onasch, Leah R. Williams, Tami C. Bond
Summary: Emission of organic aerosol from wood combustion is a deterministic process influenced by factors such as pyrolysis reactions, temperature, moisture content, and wood type. Higher temperatures increase the mass loss rate and the concentration of released gases and particles, while larger wood size results in lower particle yield due to higher mass transfer resistance.
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2021)