Results 61 to 70 of about 21,342 (292)

Research on Effect of Pollution Gas Components Based on Computational Simulation and Computational Fluid Dynamics Technology on Supersonic Combustion

Chemical Engineering Transactions, 2017
Based on computational simulation and computational fluid dynamics (CFD), this paper analyzes and compares the effects of incoming flow with clean air and air containing CO2/H2O pollution components on the performance of supersonic combustion of hydrogen
Xi Wang
doaj   +1 more source

Finite-rate water condensation in combustion-heated wind tunnels [PDF]

A quasi-one-dimensional method for computing finite rate nucleation and droplet growth of water in a supersonic expansion of combustion products is presented. Sample computations are included for the Langley 8 foot High Temperature Tunnel, but the method
Erickson, Wayne D., Mall, Gerald H., Prabhu, Ramadas K.   +2 more
core   +1 more source

Initiation of stabilized detonations by projectiles [PDF]

, 2005
A high-speed projectile in combustible gas can initiate and stabilize a detonation wave under suitable conditions [1]. In this paper, numerical simulations of projectile induced detonation waves are presented. Using a one-step irreversible reaction model,
Hung, P., Shepherd, J. E.
core  

CO2‐Driven Synthesis of Holey Edge‐Carboxylated Graphene for Tunable Electronic Interactions in Cu–CeO2‐Catalyzed Water‐Gas Shift Reaction

Carbon Energy, EarlyView.
Holey‐structured, edge‐carboxylated graphene with a controlled specific surface area was synthesized using an environmentally friendly, CO2‐activated, KOH‐free ball‐milling process. ABSTRACT Graphene, notable for its high specific surface area, is ideal for catalyst support but faces challenges under harsh thermal catalytic conditions.
Seon‐Yong Ahn, I‐Jeong Jeon, Won‐Jun Jang, In‐Yup Jeon, Jae‐Oh Shim, Hyun‐Seog Roh   +5 more
wiley   +1 more source

Study of combustion flow field in a scramjet engine under inflow oscillation variations based on OpenFOAM

Case Studies in Thermal Engineering
In this study, a compressible supersonic numerical model was established based on the open-source computational fluid dynamics software OpenFOAM. The supersonic air inflow was set in sinusoidal variation and gas hydrogen was employed as fuel for the DLR ...
Changhao Wang, Zhe Fang, Xin He, Xing Zheng, Jing Yang, Rui Xue, Xiangrui Zou   +6 more
doaj   +1 more source

Supersonic combustor modeling [PDF]

The physical phenomena involved when a supersonic flow undergoes chemical reaction are discussed. Detailed physical models of convective and diffusive mixing, and finite rate chemical reaction in supersonic flow are presented.
Carpenter, Mark H., Drummond, J. Philip, Riggins, David W.   +2 more
core   +1 more source

Plasma igniter for internal combustion engine [PDF]

, 1978
An igniter for the air/fuel mixture used in the cylinders of an internal combustion engine is described. A conventional spark is used to initiate the discharge of a large amount of energy stored in a capacitor.
Breshears, R. R., Fitzgerald, D. J.
core   +1 more source

Green and sustainable synthesis of magnetite from copper slag via citrate complexation for methylene blue dye removal from water

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract This study proposes a novel, green, and sustainable method for synthesizing magnetic iron oxides from metallurgical copper slag (CS), leveraging its iron content as a valuable resource. Iron was extracted via acid leaching using edible citric acid (ECA), forming a citrate–iron complex (CSL), which was subsequently thermally decomposed at 300°C
Melisa Portilla‐Sangabriel, Karen Valencia García, Tania‐Ariadna García‐Mejía, Agileo Hernández‐Gordillo, Rosa‐María Ramírez‐Zamora   +4 more
wiley   +1 more source

Full scale tests of a short length, double annular ram induction turbojet combustor for supersonic flight [PDF]

Performance tests and characteristics of short length, double annular ram induction turbojet combustion chambers for supersonic ...
Perkins, P. J., Schultz, D. F., Wear, J. D.   +2 more
core   +1 more source

Engineering the Lattice and Electronic Configurations of N‐Rich‐CoMoCN by Mo Doping and N Enrichment for Enhanced Water Splitting

EcoEnergy, EarlyView.
This study design Mo‐doped and N‐rich‐CoMoCN bimetal for bi‐functionally efficient overall water splitting catalysts by constructing an active site and engineering the interfacial Co6Mo6C2/Co heterojunction in a N‐doped porous carbon matrix and study on the performance of catalyst for electrocatalytic.
Huimin Yang, Yue Xiao, Zhuo Wang, Mingfang Zhang, Haimei Xu, Yunzhao Fan, Chao Feng, Qingcheng Hu, Chunhua Yuan, Yang Fu, Lingfeng Zhu, Songbo Li, Tianyi Ma   +12 more
wiley   +1 more source