Results 31 to 40 of about 31,928 (260)

A Novel Modified Petroresin Particle (MPRP) With Enhanced Oil–Water Selectivity for Cold Production in Heavy Oil Reservoirs

open access: yesAdvanced Functional Materials, EarlyView.
A novel oil–water selective conformance control agent, MPRP, is prepared via hydrophilic grafting and mechanical granulation. MPRP uniformly disperses in water, cohesively expands upon aging, and readily dissolves in the oil phase. During conformance control, it selectively aggregates in water channeling pathways to form effective plugs without ...
Guang Zhao   +6 more
wiley   +1 more source

Experimental and numerical investigations of the dry-low-NOx hydrogen micromix combustion chamber of an industrial gas turbine

open access: yesPropulsion and Power Research, 2015
Combined with the use of renewable energy sources for its production, hydrogen represents a possible alternative gas turbine fuel within future low emission power generation.
A. Haj Ayed   +5 more
doaj   +1 more source

Effects of Compression Ratios on Combustion and Emission Characteristics of SI Engine Fueled with Hydrogen-Enriched Biogas Mixture

open access: yesEnergies, 2022
The effects of hydrogen-enriched biogas on combustion and emissions of a dual-fuel spark-ignition engine with different hydrogen concentration ratios were studied numerically. A 1-cylinder spark ignition was used to perform a numerical simulation.
Quang Trung Nguyen, Minh Duc Le
doaj   +1 more source

Graphene Quantum Dot‐Induced Microstrain for Framework Stabilization of High‐Entropy Prussian Blue Analog in High‐Current Alkaline Hydrogen Evolution Reaction

open access: yesAdvanced Functional Materials, EarlyView.
The intrinsic distortion‐rich lattice of HEPBA with GQD‐enabled microstrain engineering establishes a mechanistic route toward high‐performance alkaline hydrogen evolution reaction. HEPBA inherently feature heterogeneous local coordination environments arising from multimetal incorporation, while properly introducing GQD during coprecipitation ...
Mia Rinawati   +10 more
wiley   +1 more source

Assessment of the measurement capabilities of hydrogen and ammonia mixture combustion in a TJI engine

open access: yesPojazdy Szynowe
The combustion of zero-emission fuels such as hydrogen and ammonia is one of the key directions in the search for alternatives to fossil fuels. Co-combustion of these fuels is possible through the use of a two-stage combustion system.
Bartosz Kaźmierczak, Ireneusz Pielecha
doaj   +1 more source

A Study on Hydrogen-Fueled Diesel Combustion

open access: yesTRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B, 1979
A compression ignition of hydrogen fuel has been investigated using a conventional swirl chamber type diesel engine. It has been suggested that the hydrogen-fueled diesel combution is attainable in spite of the expected difficulty due to a high resistance to autoignition.
IKEGAMI, Makoto   +3 more
openaire   +3 more sources

Hydrogen Internal Combustion Engine [PDF]

open access: yesDRC Sustainable Future: Journal of Environment, Agriculture, and Energy, 2021
Hydrogen fuel constitutes an attainable alternative strategy, which can be implemented in the long term. This strategy can avoid the risk of commodity supply dependency (rare earths and copper) and can delay the still open decisions on e-mobility. Hydrogen internal combustion engines represent a doable and less expensive solution for using hydrogen ...
openaire   +1 more source

Bismuth‐Based Photocatalysts for Water Remediation: Design Strategies, Mechanisms, and Challenges

open access: yesAdvanced Functional Materials, EarlyView.
This review highlights representative design strategies for bismuth‐based semiconductor photocatalysts in solar‐driven water purification. Emphasis is placed on electronic structure regulation, oxygen‐vacancy engineering, and interfacial coupling to enable efficient full‐spectrum light utilization, improved charge separation, and selective oxidation in
Shan Liu   +9 more
wiley   +1 more source

Industrial Decarbonization through Blended Combustion of Natural Gas and Hydrogen

open access: yesHydrogen
The transition to cleaner energy sources, particularly in hard-to-abate industrial sectors, often requires the gradual integration of new technologies. Hydrogen, crucial for decarbonization, is explored as a fuel in blended combustions.
Alessandro Franco, Michele Rocca
doaj   +1 more source

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