Results 31 to 40 of about 131,419 (313)

Effects of microstructures on the slurry wear properties of X70 pipeline steels

工程科学学报, 2015
Slurry wear tests of three designed pipeline steels with the same chemical composition but different microstructures were performed by utilizing a wet sand/rubber wheel abrasion test apparatus.
JU Biao, WU Hui-bin, PAN Xue-fu, TANG Di
doaj   +1 more source

Investigation into the transportation and melting of thick ice slurries in pipes [PDF]

, 2008
This paper presents the results of experiments and modelling carried out on ice slurries flowing in uninsulated steel pipes with a nominal diameter of 50 mm. The slurries used were formed from 4.75% NaCl aqueous solution and had ice mass fractions in the
Quarini, GL, Evans, T. S., Quarini, Giuseppe Leonardo, Shire, GSF, Shire, G. S. F., Evans, Tim S   +5 more
core   +1 more source

Ice slurry applications [PDF]

International Journal of Refrigeration, 2010
The role of secondary refrigerants is expected to grow as the focus on the reduction of greenhouse gas emissions increases. The effectiveness of secondary refrigerants can be improved when phase changing media are introduced in place of single phase media.
M, Kauffeld, M J, Wang, V, Goldstein, K E, Kasza   +3 more
openaire   +2 more sources

Research of biological agents effects on reduction of ammonia concentration in stables of intensive farm animals breeding

Research in Agricultural Engineering, 2004
In the study are presented results of experiments using bio-technological agents Amalgerol, Bio-Algeen G-40 and Biostrong 510 in intensive pig, poultry breeding and cattle slurry treatment for ammonia emissions reduction.
A. Jelínek, M. Dědina, P. Plíva, J. Souček   +3 more
doaj   +1 more source

The anomalous pressure drop behaviour of ice slurries flowing through constrictions [PDF]

, 2008
The effective ‘viscosity’ for ice slurry containing more than say 30 to 40% ice fraction is many orders of magnitude higher than that for water. However, this work suggests that such slurries, when flowing through constrictions, can incur lower pressure ...
Rhys, T. D. L., Evans, T. S., Quarini, Giuseppe Leonardo, Shire, G. S. F.   +3 more
core   +1 more source

Development of fluorine-free microporous layer composed of thermosetting melamine resin via dry coating process for polymer electrolyte fuel cells

Journal of Power Sources Advances
As polymer electrolyte fuel cells (PEFCs) become more widespread, there is growing demand to reduce the environmental impact of their production and to comply with regulations covering perfluoroalkyl and polyfluoroalkyl substances (PFAS).
Tetsushi Ohmura, Kenji Kudo, Yusuke Akimoto, Takuro Matsunaga, Hiroshi Nakamura   +4 more
doaj   +1 more source

Characterization of the Effect of the CO₂/CO Sintering Atmosphere on the Abrasion Resistance of a FeCrCB Hardfacing Coating

Metals, 2021
FeCrCB alloys have become an attractive option as a hardfacing coating to extend the service life of tools used in primary and secondary industries. In this work, experiments are reported on the sintering of FeCrCB alloy powders for hardfacing coatings ...
Fernando Valenzuela-De la Rosa, Roal Torres-Sánchez, Carlos Domínguez-Ríos, Alfredo Aguilar-Elguézabal   +3 more
doaj   +1 more source

Instability of boreholes with slurry

, 2021
Drilling slurry has been widely used in the construction of wet-processed borehole excavation, and the stability of such an excavation is of great concern to engineers.
Keawsawasvong, Suraparb, Shiau, Jim
core   +1 more source

Optimizing Livestock By-Products Storage to Reduce Ammonia and Greenhouse Gas Emissions Using Biochar and Wood Vinegar

Atmosphere
The environmental impact of livestock by-products presents significant challenges, particularly in regions with intensive farming and high pollution levels, such as the Po Valley.
Alessandra Lagomarsino, Edoardo Verga, Massimo Valagussa, Stefano Rispoli, Filippo Rocchi, Claudia Becagli, Alberto Tosca   +6 more
doaj   +1 more source

Ammonia volatilization from surface-applied livestock slurry as affected by slurry composition and slurry infiltration depth [PDF]

The Journal of Agricultural Science, 2006
Volatilization of ammonia (NH3) from slurry applied in the field is considered a risk to the environment and reduces the fertilizer value of the slurry. To reduce volatilization a better understanding of the slurry–soil interaction is needed. Therefore, the present study focuses on measuring NH3 volatilization as affected by differences in infiltration.
Sommer, S. G., Jensen, Lars Stoumann, Clausen, S. B., Søgaard, H. T.   +3 more
openaire   +2 more sources