Qiujin Peng Institute for Mathematical Sciences, Renmin University of China, Beijing 100872, China Email: [email protected] Zhonghua Qiao Department of Applied Mathematics, The Hong Kong Polytechnic University, Hung Hom, Hong Kong Email: [email protected] Shuyu Sun Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, ...

We develop a density functional theory and investigate the interfacial tension of several pure substances N(2), CO(2), H(2)S, normal alkanes from C(1) to nC(10), and binary mixtures C(1)/C(3), C(1)/nC(5), C(1)/nC(7), C(1)/nC(10), CO(2)/nC(4), N(2)/nC(5), N(2)/nC(6), N(2)/nC(8), N(2)/nC(10), nC(6)/nC(7), nC(6)/nC(8), and nC(6)/nC(10). The theory is combined with the semiempirical Peng-Robinson e...

Carbon dioxide capture transportation and storage is one of the technologies that can be employed to reduce CO2 emissions from power plants. Unfortunately, in post combustion process, not pure contains impurities like SO2, NOx, N2, O2 Ar for example. In this paper, Vapour-Liquid-Equilibrium (VLE) a binary system composed N2O4/NO2 have been investigated. The equipment used based on “static-synth...

During the drilling and development of sour natural gas (including CO 2 H S) fields, due to high solubility in fluid, concealment after invasion increases, resulting well control accidents. Therefore, it is great significance for field deeply study understand acid flow law annular air liquid invasion. In this paper, a multiphase equation considering dissolution established. Based on existing ex...

Surface tension is one of the most important thermodynamic properties working fluids for design heat pumps, refrigerators and air conditioners. The Linear Gradient Theory have been widely used prediction surface tension. Based on this theory combining with Peng-Robinson Equation State, a novel model calculation proposed in work. In model, new correlation pure substance influence parameter (PSIP...

The article is devoted to the analysis of flame anchoring mechanism in test case MASCOTTE C-60 RCM2 on supercritical hydrogen/oxygen combustion at 60 bar, with transcritical (liquid) injection oxygen. simulated by means in-house parallel code HeaRT three-dimensional LES framework. cubic Peng–Robinson equation state its improved translated volume formulation assumed. Diffusive mechanisms and tra...

This report summarizes our recent implementation of a crossover formulation in the lattice Boltzmann method and its application modeling transcritical CO2 sequestration water-saturated porous media. A enhancement Peng-Robinson equation state increases accuracy predicting fluid properties conditions, which is relevant sequestration. The leads to prediction liquid-vapor coexistence curves closer ...

A large eddy simulation (LES) and combustion instability analysis are performed using OpenFOAM for the multiple shear-coaxial injector combustor DLR-BKD (in German Deutsches Zentrum für Luft–Brennkammer D, Aerospace Center–Combustion Chamber D), which is a laboratory-scale operating in real-gas environment. The Redlich–Kwong–Peng–Robinson equation of state steady-laminar flamelet model adopted ...

An equation-of-state (EoS) scheme to correlate the solubility of solids in supercritical fluids is presented. The solute fugacity coefficient obtained using pure-solvent compressibility factor, and empirical solute-to-solvent parameter ratios cohesion factors covolumes. proposed method simpler than conventional EoS calculations since no iteration required. We retain link classical cubic mixing ...

Simulation of a process and analysis of its resulting data in both dynamic and steady-state conditions are fundamental steps in understanding the process in order to design and efficient control of system as well as implementing operational cost reduction scheme. In the present paper, steady and unsteady state simulation of Amir Kabir1, 3 butadiene purification units has been done by using Aspe...