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Dorde Medic, Matthew Darr, Ajay Shah and Sarah Rahn
Large scale biofuel production will be possible only if significant quantities of biomass feedstock can be stored, transported, and processed in an economic and sustainable manner. Torrefaction has the potential to significantly reduce the cost of transp...
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Yaomei Wang, Worakanok Thanyamanta, Craig Bulger, Neil Bose and Jimin Hwang
To overcome the environmental impacts of releasing oil into the ocean for testing acoustic methods in field experiments using autonomous underwater vehicles (AUVs), environmentally friendly gas bubble plumes with low rise velocities are proposed in this ...
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Elizabeth Peters, Ate Visser, Bradley K. Esser and Jean E. Moran
Mount Shasta (4322 m) is famous for its spring water. Water for municipal, domestic and industrial use is obtained from local springs and wells, fed by annual snow melt and sustained perennially by the groundwater flow system. We examined geochemical and...
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Éva Molnár, Dóra Rippel-Petho, Géza Horváth, Zoltán Hodai, Róbert Bocsi, Janka Bobek
Pág. 74 - 77
Our energy requirements have increased enormously in the last decades. We can get a significant amount of energy by the combustion of flammable gas mixtures of hydrocarbons. Proper gas purification prior to use is essential. A hydrocarbon-based gas mixtu...
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Shahrouz Mohagheghian, Adam L. Still, Brian R. Elbing and Afshin J. Ghajar
Vertical vibration is known to cause bubble breakup, clustering and retardation in gas-liquid systems. In a bubble column, vibration increases the mass transfer ratio by increasing the residence time and phase interfacial area through introducing kinetic...
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Sujeeta Karki, Jeeban Poudel and Sea Cheon Oh
A lab-scale downdraft fixed bed reactor was used for the study of sewage sludge, a non-lignocellulosic biomass, torrefaction to enhance the thermochemical properties of sewage sludge. The torrefaction was carried out for a temperature range of 200?350 °C...
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Luca Terray, Pierre-J. Gauthier, Giuseppe Salerno, Tommaso Caltabiano, Alessandro La Spina, Pasquale Sellitto and Pierre Briole
Mount Etna volcano (Sicily, Italy) is the place where short-lived radioactive disequilibrium measurements in volcanic gases were initiated more than 40 years ago. Almost two decades after the last measurements in Mount Etna plume, we carried out in 2015 ...
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Luca Terray, Pierre-J. Gauthier, Giuseppe Salerno, Tommaso Caltabiano, Alessandro La Spina, Pasquale Sellitto and Pierre Briole
Mount Etna volcano (Sicily, Italy) is the place where short-lived radioactive disequilibrium measurements in volcanic gases were initiated more than 40 years ago. Almost two decades after the last measurements in Mount Etna plume, we carried out in 2015 ...
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Nicole Viola, Roberta Fusaro, Guido Saccone and Valeria Borio
According to the latest report of the Intergovernmental Panel on climate change, aviation contributes to only about 2% to anthropogenic global greenhouse gas (GHG) emissions. However, in view of the growing market demand and the dramatic reductions in ot...
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André A. V. Perpignan, Stella Grazia Tomasello and Arvind Gangoli Rao
Future energy and transport scenarios will still rely on gas turbines for energy conversion and propulsion. Gas turbines will play a major role in energy transition and therefore gas turbine performance should be improved, and their pollutant emissions d...
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Satworo Adiwidodo,I Nyoman Gede Wardana,Lilis Yuliati,Mega Nur Sasongko
Pág. 35 - 43
This research compared the performance of a cylindrical mesoscale combustor against two planar mesoscale combustors, which include the shape of the flame front, temperature of the combustor axis and the combustor wall, and the resulting flammability limi...
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Hyun-Kwon Do, Seong-Taek Yun, Soonyoung Yu, Yon-Gyung Ryuh and Hyeon-Su Choi
Three hydrochemical types of CO2-rich water (i.e., Na-HCO3, Ca-Na-HCO3 and Ca-HCO3) occur together in the silicate bedrock (granite and gneiss) of Gangwon Province in South Korea. As a natural analogue of geological carbon storage (GCS), this can provide...
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Éric Dumont, Solène Lagadec, Nadine Guingand, Laurence Loyon, Abdeltif Amrane and Annabelle Couvert
It was demonstrated that the daily monitoring of electrical conductivity (EC) of scrubbing water can easily be used to determine the performance of biotrickling filters treating ammonia (NH3) emissions, generated by livestock facilities. Two different me...
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Elena Alexandra Serban, Aditya Prabaswara, Justinas Palisaitis, Per Ola Åke Persson, Lars Hultman, Jens Birch and Ching-Lien Hsiao
Selective-area grown, catalyst-free GaN nanorod (NR) arrays grown on Si substrates have been realized using liquid-target reactive magnetron sputter epitaxy (MSE). Focused ion beam lithography (FIBL) was applied to pattern Si substrates with TiNx masks. ...
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Wooseok Jeong, Seungeon Jang and Hong-Jip Kim
Since a heat exchanger used in a gas generator of an open-cycle liquid rocket engine was operated in a high-temperature environment, the coupled analysis for heat transfer characteristics and structural integrity should be performed simultaneously. For t...
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