scholarly journals Cover Picture: Osmotic Pressure and Phase Boundary Determination of Multiphase Systems by Analytical Ultracentrifugation (ChemPhysChem 6/2008)

ChemPhysChem ◽  
2008 ◽  
Vol 9 (6) ◽  
pp. 809-809
Author(s):  
Miles G. Page ◽  
Thomas Zemb ◽  
Monique Dubois ◽  
Helmut Cölfen
Keyword(s):  
Phase Boundary ◽  
Osmotic Pressure ◽  
Analytical Ultracentrifugation ◽  
Boundary Determination ◽  
Multiphase Systems

Osmotic Pressure and Phase Boundary Determination of Multiphase Systems by Analytical Ultracentrifugation

ChemPhysChem ◽  
2008 ◽  
Vol 9 (6) ◽  
pp. 882-890 ◽  
Author(s):  
Miles G. Page ◽  
Thomas Zemb ◽  
Monique Dubois ◽  
Helmut Cölfen
Keyword(s):  
Phase Boundary ◽  
Osmotic Pressure ◽  
Analytical Ultracentrifugation ◽  
Boundary Determination ◽  
Multiphase Systems

scholarly journals Interaction Boundary Determination of Renewable Energy Sources to Estimate System Strength Using the Power Flow Tracing Strategy

2021 ◽  
Vol 13 (3) ◽  
pp. 1569
Author(s):  
Namki Choi ◽  
Byongjun Lee ◽  
Dohyuk Kim ◽  
Suchul Nam
Keyword(s):  
Renewable Energy ◽  
Power Flow ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Test Results ◽  
Boundary Determination ◽  
Actual Interaction ◽  
Power Flow Tracing ◽  
Estimate System

System strength is an important concept in the integration of renewable energy sources (RESs). However, evaluating system strength is becoming more ambiguous due to the interaction of RESs. This paper proposes a novel scheme to define the actual interaction boundaries of RESs using the power flow tracing strategy. Based on the proposed method, the interaction boundaries of RESs were identified at the southwest side of Korea Electric Power Corporation (KEPCO) systems. The test results show that the proposed approach always provides the identical interaction boundaries of RESs in KEPCO systems, compared to the Electric Reliability Council of Texas (ERCOT) method. The consistent boundaries could be a guideline for power-system planners to assess more accurate system strength, considering the actual interactions of the RESs.

AccurateP−ρ−TData and Phase Boundary Determination for a Synthetic Residual Natural Gas Mixture

2011 ◽  
Vol 56 (4) ◽  
pp. 826-832 ◽  
Author(s):  
Diego E. Cristancho ◽  
Ivan D. Mantilla ◽  
L. Alejandro Coy ◽  
Andrea Tibaduiza ◽  
Diego O. Ortiz-Vega ◽  
...  
Keyword(s):  
Natural Gas ◽  
Phase Boundary ◽  
Gas Mixture ◽  
Boundary Determination

scholarly journals Determination of γ′+γ / γ Phase Boundary in Ni-Al-Cr System Using DTA Thermal Analysis

2016 ◽  
Vol 61 (1) ◽  
pp. 237-240 ◽  
Author(s):  
T. Maciąg ◽  
K. Rzyman
Keyword(s):  
Thermal Analysis ◽  
Phase Boundary ◽  
Solution Method ◽  
Intermetallic Phase ◽  
Paper Analysis ◽  
Phase Boundaries ◽  
Disordered Phase ◽  
Dta Analysis ◽  
Cr System

Mechanical properties at elevated temperature, in modern alloys based on intermetallic phase Ni3Al are connected with phase composition, especially with proportion of ordered phase γ′ (L12) and disordered phase γ (A1). In this paper, analysis of one key systems for mentioned alloys - Ni-Al-Cr, is presented. A series of alloys with chemical composition originated from Ni-rich part of Ni-Al-Cr system was prepared. DTA thermal analysis was performed on all samples. Based on shape of obtained curves, characteristic for continuous order-disorder transition, places of course of phase boundaries γ′+γ / γ were determined. Moreover, temperature of melting and freezing of alloys were obtained. Results of DTA analysis concerning phase boundary γ′+γ / γ indicated agreement with results obtained by authors using calorimetric solution method.

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