Determination of Reactivity and Thermodynamic Analysis of Solid Copper-Based Oxygen Carriers for Chemical Recirculation

This paper is concerned with the application of fundamental thermodynamic theories in the analysis of thermoelastic martensitic transformations in shape memory alloys, with a particular reference to polycrystalline NiTi. The discussion is delivered in two parts. The first part presents a concise overview of the fundamental theories of thermodynamics of thermoelastic martensitic transformations established in the past 30 years. The second part focuses on the principles governing the application of the theories, interpretation of the thermodynamic parameters defined in the theories, experimental determination of the parameters, and some common misperceptions and unjustified assumptions in practice concerning these parameters.

Download Full-text

In Situ Mg2Si Reinforced Mg Alloy Synthesized in Mg-SiO2 System

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.146-147.1775 ◽

2010 ◽

Vol 146-147 ◽

pp. 1775-1779

Author(s):

Dan Huang ◽

Yan Li Wang ◽

Ying Wang ◽

Hong Bao Cui ◽

Xue Feng Guo

Keyword(s):

Thermodynamic Analysis ◽

Equilibrium Diagram ◽

Mg Alloy ◽

Experimental Temperature ◽

Chinese Script ◽

Solidification Condition ◽

Sio2 System ◽

Primary Mg2si

The thermodynamic analysis in Mg-SiO2 system was conducted for the determination of the priority reaction at experimental temperature. Then, Mg2Si reinforced Mg alloy was synthesized through reaction in Mg-SiO2 system at 730°C, whose Si mass fraction is up to approximately 10%. The thermodynamic analysis and microstructure investigation results show, that generation of reinforcing phase of Mg2Si in Mg alloy from the reaction in Mg-SiO2 system is feasible with lower free energy than that in Mg-Si at the same temperature; and under the experimental temperature and solidification condition, the microstructure of Mg-10Si alloy is composed of coarse primary Mg2Si dendrite crystal, Chinese script type eutectic Mg2Si, and α–Mg phase, the formation of α–Mg holes is resulted from the relatively high cooling rate leading to a deviation from the equilibrium diagram during solidification.

Download Full-text

Determination of minimal sequence for binding of an aptamer. A comparison of truncation and hybridization inhibition methods

RSC Advances ◽

10.1039/c4ra08243e ◽

2014 ◽

Vol 4 (88) ◽

pp. 47227-47233 ◽

Cited By ~ 29

Author(s):

Thao T. Le ◽

Orada Chumphukam ◽

Anthony E. G. Cass

Keyword(s):

Thermodynamic Analysis ◽

Minimal Sequence ◽

Target Binding

A thermodynamic analysis of the effects of truncation or competitive hybridisation of an aptamer on target binding is presented.

Download Full-text

Pyrolysis of algal biomass: Determination of the kinetic triplet and thermodynamic analysis

Bioresource Technology ◽

10.1016/j.biortech.2020.124007 ◽

2020 ◽

Vol 317 ◽

pp. 124007

Author(s):

Vikul Vasudev ◽

Xiaoke Ku ◽

Jianzhong Lin

Keyword(s):

Thermodynamic Analysis ◽

Algal Biomass ◽

Kinetic Triplet ◽

Biomass Determination

Download Full-text

Thermodynamic analysis of combined cycle plant operation as part of an energy-saving system based on an absorption bromide-lithium refrigerating machine

Omsk Scientific Bulletin Series Aviation-Rocket and Power Engineering ◽

10.25206/2588-0373-2020-4-4-57-65 ◽

2020 ◽

Vol 4 (4) ◽

pp. 57-65

Author(s):

L. V. Galimova ◽

◽

D. Z. Bairamov ◽

Keyword(s):

Thermodynamic Analysis ◽

Exergy Analysis ◽

Exergy Efficiency ◽

Combined Cycle ◽

Plant Operation ◽

Operating Modes ◽

System A ◽

Combined Cycle Plant ◽

Current Energy

The main directions of research of the current energy-generating system, taking into account its technical limitations, are optimization and forecasting based on the analysis of its operating modes. Thermodynamic analysis involves determining the efficiency of the system based on the research of exergy efficiency and exergy losses. In this project, we propose methodic and results of exergy analysis of combined cycle gas plant operation as an object of energy production, the efficiency which is provided by cooling the outdoor air using an absorption bromide-lithium refrigerating machine. Conducting exergy analysis for determination of exergy destruction allow to determine the potential for increasing the efficiency of the system. A flow graph and an incident matrix are presented. The exergy efficiency of the combined cycle gas plant under the specified conditions is 46,5%. Based on the exergy analysis, the final diagram of the distribution of fluxes and losses of exergy of the combined cycle gas plant is presented

Download Full-text