Characterization of Heavy Oils and Bitumens. 1. Vapor Pressure and Critical Constant Prediction Method for Heavy Hydrocarbons

2008 ◽  
Vol 22 (1) ◽  
pp. 455-462 ◽  
Author(s):  
G. N. Nji ◽  
W. Y. Svrcek ◽  
H. W. Yarranton ◽  
M. A. Satyro
Keyword(s):  
Vapor Pressure ◽  
Prediction Method ◽  
Heavy Oils ◽  
Heavy Hydrocarbons ◽  
Critical Constant

scholarly journals Characterization of Heavy Oils and Bitumens. 1. Vapor Pressure and Critical Constant Prediction Method for Heavy Hydrocarbons

2008 ◽  
Vol 22 (5) ◽  
pp. 3559-3559 ◽  
Author(s):  
G. N. Nji ◽  
W. Y. Svrcek ◽  
H. W. Yarranton ◽  
M. A. Satyro
Keyword(s):  
Vapor Pressure ◽  
Prediction Method ◽  
Heavy Oils ◽  
Heavy Hydrocarbons ◽  
Critical Constant

Aerodynamic Characterization of Transonic Turbine Vanes Optimized to Attenuate Rotor Forcing

2011 ◽  
Author(s):  
R. Puente ◽  
G. Paniagua ◽  
T. Verstraete
Keyword(s):  
High Efficiency ◽  
Prediction Method ◽  
Optimization Procedure ◽  
3D Design ◽  
Turbine Vanes ◽  
Turbine Vane ◽  
Loss Prediction ◽  
Transonic Turbine ◽  
Characteristic Features

A multi-objective optimization procedure is applied to the 3D design of a transonic turbine vane row, considering efficiency and stator outlet pressure distortion, which is directly related to induced rotor forcing. The characteristic features that define different individuals along the Pareto Front are described, analyzing the differences between high efficiency airfoils and low interaction. Pressure distortion is assessed by means of a model that requires only of the computation the steady flow field in the domain of the stator. The reduction of aerodynamic rotor forcing is checked via unsteady multistage aerodynamic computations. A well known loss prediction method is used to drive the efficiency of one optimization run, while CFD analysis is used for another, in order to assess the reliability of both methods. In both cases, the decomposition of total losses is performed to quantify the influence on efficiency of reducing rotor forcing. Results show that when striving for efficiency, the rotor is affected by few, but intense shocks. On the other hand, when the objective is the minimization of distortion, multiple shocks will appear.

Syntheses of Alkylated Aromatic Model Compounds To Facilitate Mass Spectral Characterization of Heavy Oils, Resids, and Bitumens

2011 ◽  
Vol 25 (10) ◽  
pp. 4600-4605 ◽  
Author(s):  
M. A. Francisco ◽  
R. Garcia ◽  
B. Chawla ◽  
C. Yung ◽  
K. Qian ◽  
...  
Keyword(s):  
Spectral Characterization ◽  
Heavy Oils ◽  
Model Compounds ◽  
Mass Spectral

Structural characterization of sulfur-containing aromatic compounds in heavy oils by FT-ICR mass spectrometry with a narrow isolation window

Fuel ◽  
2019 ◽  
Vol 240 ◽  
pp. 40-48 ◽  
Author(s):  
Ling Liu ◽  
Chunxia Song ◽  
Songbai Tian ◽  
Qundan Zhang ◽  
Xinheng Cai ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Structural Characterization ◽  
Aromatic Compounds ◽  
Heavy Oils ◽  
Sulfur Containing ◽  
Ft Icr

scholarly journals Characterization of Heavy Oils and its Application

1981 ◽  
Vol 24 (1) ◽  
pp. 43-43 ◽  
Author(s):  
Heavy Oil Division, Refining Sectio
Keyword(s):  
Heavy Oils

scholarly journals Characterization of the Sublimation and Vapor Pressure of 2-(2-Nitrovinyl) Furan (G-0) Using Thermogravimetric Analysis: Effects of Complexation with Cyclodextrins

Molecules ◽  
2015 ◽  
Vol 20 (8) ◽  
pp. 15175-15191 ◽  
Author(s):  
Vivian Ruz ◽  
Mirtha González ◽  
Danny Winant ◽  
Zenaida Rodríguez ◽  
Guy Van den Mooter
Keyword(s):  
Thermogravimetric Analysis ◽  
Vapor Pressure
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