Results 41 to 50 of about 120,521 (358)

Laser Additive Manufacturing of Oxide‐Dispersion‐Strengthened Steels: A Simulation‐Based Comparison Between Powder Bed Fusion and Direct Energy Deposition

open access: yesAdvanced Engineering Materials, EarlyView.
Controlling the size and distribution of dispersoids is essential for optimizing the performance of oxide‐dispersion‐strengthened steels. This study focuses on nanoparticle dispersion and agglomeration during laser additive manufacturing of Fe20Cr alloy reinforced with ZrO 2 nanoparticles. Utilizing multiphysics phase‐field simulations and nanoparticle
Somnath Bharech   +6 more
wiley   +1 more source

Numerical Analysis of Turbulent Mixed Convection in Vertical Annular Channel

open access: yesYuanzineng kexue jishu, 2023
Reactor cavity cooling system (RCCS) is a competitive residual heat removal scheme for small modular reactors. In this paper, the RCCS has been simplified to a scenario that ascending air flow is got heated in vertical annular channels and driven by ...
HU Xiangjie;WEN Jiming;GAO Puzhen;TIAN Ruifeng
doaj  

Analysis of free and forced convections in the flow of radiative viscous fluid with oxytactic microorganisms

open access: yesFrontiers in Materials, 2023
The prime intend behind the current effort is to explicate flow attributes of magnetically influenced Newtonian fluids toward a stretchable sheet under the novel physical impact of oxytactic microorganisms in a comparative manner for free and forced ...
S. Bilal   +5 more
doaj   +1 more source

Process Parameter and Dimension‐Dependent Mn Vaporization During Laser Powder Bed Fusion of an Fe–Mi–Si–Cr‐Based Shape Memory Alloy

open access: yesAdvanced Engineering Materials, EarlyView.
The functional properties of Fe–Mn–Si–Cr‐based shape memory alloys are influenced, among other things, by their chemical composition. Here, the vaporization of Mn, the most volatile element of the alloy, is investigated. It is shown that the process parameters make noninterchangeable contributions to the vaporization and that vaporization differences ...
Maylin Homfeldt, Anastasiya Toenjes
wiley   +1 more source

Biomass gasification for syngas and biochar co-production: Energy application and economic evaluation [PDF]

open access: yes, 2018
Syngas and biochar are two main products from biomass gasification. To facilitate the optimization of the energy efficiency and economic viability of gasification systems, a comprehensive fixed-bed gasification model has been developed to predict the ...
Ge, TianshU   +3 more
core   +1 more source

Combining Metal Additive Manufacturing and Casting Technology: High Performance Cooling Channels for Electric Powertrain Components

open access: yesAdvanced Engineering Materials, EarlyView.
When realized as inserts in high‐pressure die casting, aluminum cooling channels for electric powertrain components and similar applications typically require a stabilizing filler to survive the process. The present study investigates relinquishing this filler using additively manufactured inserts promising performance improvements.
Dirk Lehmhus   +9 more
wiley   +1 more source

Thermal Storage Efficiency Enhancement for Solar Air Heater Using a Combined SHSm and PCM Cylindrical Capsules System: Experimental Investigation [PDF]

open access: yesEngineering and Technology Journal, 2016
Thepresent work aims to enhance the thermal storage efficiency and thermal behavior for solar air heater integrated with cylindrical capsulessystem. The cylindrical capsule has diameter 50 mm and length 600 mm, placed in the crossflow of airstream.In ...
Akram H. Abed
doaj   +1 more source

Forced-convection surface-boiling heat transfer and burnout in tubes of small diameters [PDF]

open access: yes, 1962
A basic heat-transfer apparatus was designed and constructed for the study of forced-convection boiling in small channels. The various regions of forced-convection surface boiling were studied experimentally and analytically.
Bergles A. E., Rohsenow, Warren M.
core  

Increasing vertical mixing to reduce Southern Ocean deep convection in NEMO3.4 [PDF]

open access: yes, 2015
Most CMIP5 (Coupled Model Intercomparison Project Phase 5) models unrealistically form Antarctic Bottom Water by open ocean deep convection in the Weddell and Ross seas.
Calvert, D.   +4 more
core   +2 more sources

Reactive Interaction and Wetting of Fe‐ and Mn‐Containing, Secondary AlSi Alloys with Manganese Oxide Ceramic Filter Material for Fe Removal

open access: yesAdvanced Engineering Materials, EarlyView.
Fe‐ and Mn‐containing AlSi alloys undergo aluminothermic reaction with Mn oxide in sessile‐drop and crucible experiments forming poor‐wetting Al2O3 while Mn enriches in the alloy. Primary Fe‐containing particles are preferentially attached to the Mn oxide.
Hanka Becker   +6 more
wiley   +1 more source

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