Results 31 to 40 of about 14,775 (261)

Experimental Study on Effects of Adjustable Vaned Diffusers on Impeller Backside Cavity of Centrifugal Compressor in CAES

Energies, 2021
The impeller backside cavity (IBC) is a unique structure of centrifugal compressor in compressed air energy storage (CAES) systems, which affects the aerodynamic performance of centrifugal compressor, and the angle change of the downstream coupled ...
Zhihua Lin, Zhitao Zuo, Wenbin Guo, Jianting Sun, Qi Liang, Haisheng Chen   +5 more
doaj   +1 more source

Combustion Engineering and Thermophysical Properties on Combustion.

Netsu Bussei, 1995
燃焼は流動、 伝熱、 化学反応の複合現象であるため、 今後さらに燃焼効率の向上や環境汚染物質の低減を達成しつつ、 燃焼によるエネルギー利用を積極的に推進していくためには、 火炎中での現象の解明とともに燃焼現象に関連する様々な物質の広範囲な温度域での正確な物性値が必要となっている。 本解説では、 燃焼現象をモデル化して総合的なシミュレーションを行う上でのモデル化の現状や問題点および今後の課題とともに、 必要とされる熱物性値との関係について概説する。
Hideyuki Aoki, Takatoshi Miura
openaire   +2 more sources

Interaction between Molten Al‐Killed Mn–B Steel and Carbon‐Bonded MgO Refractories Based on Recyclates

Advanced Engineering Materials, EarlyView.
High‐temperature interactions between low‐sulfur Al‐killed Mn–B steel and MgO–C refractories (0 and 50 wt% recyclates) are studied via finger immersion tests (1600 °C). Surface‐active elements influence infiltration. MgO/CaS layer forms, along with spinel and calcium silicate.
Matheus Roberto Bellé, Lukas Neubert, Anton Yehorov, Till M. J. Stadtmüller, Christos G. Aneziris, Olena Volkova   +5 more
wiley   +1 more source

Variation principle in calculating the flow of a two-phase mixture in the pipes of the cooling systems in high-rise buildings

E3S Web of Conferences, 2018
The analytical solution of one of the urgent problems of modern hydromechanics and heat engineering about the distribution of gas and liquid phases along the channel cross-section, the thickness of the annular layer and their connection with the mass ...
Aksenov Andrey, Malysheva Anna
doaj   +1 more source

Effects of Local Mixing Ratios and Mass Flow Rates on Combustion Performance of the Fuel-Rich LOX (Liquid Oxygen)/kerosene Gas Generator in the ATR (Air Turbo Rocket) Engine

Aerospace, 2023
This paper presents a numerical simulation analysis of the flow and combustion characteristics of a fuel-rich LOX (liquid oxygen)/kerosene gas generator in an ATR (air turbo rocket) engine, examining the effects of local parameters on the combustion flow
Yuankun Zhang, Qingjun Zhao, Bin Hu, Qiang Shi, Wei Zhao, Xiaorong Xiang   +5 more
doaj   +1 more source

Experimental measurements of the permeability of fibrous carbon at high temperature

, 2016
A series of experiments was performed to obtain permeability data on FiberForm(R), a commercial carbon preform used for manufacturing thermal protection systems. A porous sample was placed in a quartz flow-tube heated by an isothermal furnace.
Cochell, Thomas J., Mansour, Nagi N., Martin, Alexandre, Panerai, Francesco, Schroeder, Olivia M., White, Jason D., Wright, Michael J.   +6 more
core   +1 more source

Influence of Sample Preparation and Processing Procedures on the Thermal Diffusivity of MgO‐C Refractories

Advanced Engineering Materials, EarlyView.
The thermal diffusivity of MgO‐C refractories is highly sensitive to sample preparation and processing procedures. In this article, the effects of coking sequence, machining conditions, structural inhomogeneity, and graphite coating application on measurements using laser flash apparatus are systematically investigated.
Luyao Pan, Rhena Wulf, Till M. J. Stadtmüller, Christos G. Aneziris, Tobias M. Fieback   +4 more
wiley   +1 more source

Combined Process‐ and Phase‐Field‐Simulation to Predict the Microstructure of Single‐Crystal Ni‐Based Superalloys

Advanced Engineering Materials, EarlyView.
A combined finite element and phase‐field approach predicts the evolution of microstructure during the directional solidification of Ni‐based superalloys. The model reveals how withdrawal rate, temperature gradient, and wall thickness control the dendrite spacing, highlighting the strong effect of surface regions in thin sections where dendrite growth ...
Sean Böhm, André B. Baldissera, Rainer Völkl, Uwe Glatzel   +3 more
wiley   +1 more source

Unraveling the pore-forming mechanism and thermokinetic behaviors of porous K-Ti co-doped Li4SiO4 pellets for efficient and stable CO2 capture

Carbon Neutrality
The industrial deployment of Li4SiO4-based sorbents for high-temperature CO2 capture is often hindered by densification and diffusion limitations derived from particle shaping process.
Yunlian Liu, Qian Jia, Mingkai Liu, Yuanhui Shen, Ruqi Zhang, Zihan Wan, Ying Pan, Hongguang Jin   +7 more
doaj   +1 more source

Using porous metals to enhance heat transfer in phase change materials (PCMs) [PDF]

, 2011
Heat transfer enhancement mechanism of Phase Change Materials (PCMs) by high-porosity metal foams was investigated in this study. The Darcy-Brinkman-Forchheimer modified flow model was employed in the numerical simulations to consider the non-Darcy ...
Tian, Y. (Yuan), Zhao, Changying
core