نتایج جستجو برای: robinson equation of state pr

تعداد نتایج: 21240017  

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2003
gholamabbas parsafar zahra kalantar

in this work, we consider each normal alkane as a hypothetical mixtureof methyland methylene groups, in which the interaction potential of each pair is assumed to be the average effective pair potential. then, the lir equation of state (eos) is extended for such a hypothetical mixture. also, three basic compounds, namely, propane, n-butane and cyclohexane, are used to obtain the contribution of...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 1998
mohsen mohsen nia hamid modarres gholam ali mansoori

a mixing rule for the mixtures of hard-spheres is presented which can be reduced to the standard van der waals mixing rule at low densities. the effectiveness of the mixing rule for the size and energy parameters of lennard-jones fluid are examined by combining them with an equation of state to calculate thermodynamic properties. the results of calculation are compared with the molecular dynami...

2009
David L. Smith Simon I. Hay

The Ross-Macdonald Model We use the following simple version of the Ross-Macdonald model. The parameters are described in Box #1. For a longer explanation, see [1]. The change in the PR, the prevalence of infection, is given by the equation: ˙ X = mabZ(1 − X) − rX (1) The change in the sporozoite rate, the fraction of the mosquitoes with sporozoites in their salivary glands, is modeled using th...

پایان نامه :دانشگاه تربیت معلم - تهران - دانشکده ادبیات 1390

this study is an outlook of iranians religious practices and customs in eras such as nasser one. it attempts to answer the main question, "religious practices and ceremonies in the society during naseri ruling" and other subsidiary questions with scientific and historical theories. iran was a traditional and religious community . people abided by their religious practices and duties within reli...

1999
S. K. STAMATAKI K. G. MAGOULAS C. J. BOUKOUVALAS D. P. TASSIOS

La capacitŽ des Žquations d'Žtat (EoS) cubiques pour corrŽler et prŽdire les Žquilibres de phases en conditions hyperbares est analysŽe. Les donnŽes PVT de corps purs ainsi que les donnŽes d'Žquilibres liquide-vapeur (VLE) et volumŽtriques pour des mŽlanges binaires, jusqu'ˆ 2000 bar sont utilisŽes. Les rŽsultats des corrŽlations et des prŽdictions sont prŽsentŽs pour l'Žquation de Peng-Robinso...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تهران 1376

‏‎‏‎utopia has, for four centuries, accompanied that hope of progress and that striving for betterment. it now straggles against a widespread sense that this has been an illusion, or an impossible dream. the utopian idea can never entirely disappear, but utopia as a form of the social imagination has clearly weakened. if it cannot instill its vision in the public consciousness, the consequences...

Journal: Gas Processing 2017
Abdolazim Rahimi Mohamad Reza Talaie,

Abstract The accurate calculations of adsorption equilibrium for multicomponent gas systems are of great importance in many applications. In this paper, five two-dimensional equations of state 2D-EOS, i.e. Van der Waals, Eyring, Zhou-Ghasem-Robinson, Soave-Redlich-Kwong and Peng-Robinson, were examined to find out their abilities to predict adsorption equilibrium for pure and multi-component ga...

Journal: :physical chemistry research 0
shabnam naderi ferdowsi university of mashhad elaheh k. goharshadi ferdowsi university of mashhad hossein ahmadzadeh ferdowsi university of mashhad

alkanolamine solutions such as 2-amino-2-methyl-1-propanol (amp) are widely used in chemical industries for the removal of acid gases such as co2 and h2s. in this work, the density of co2, amp, water, and amp solutions using the goharshadi–morsali–abbaspour equation of state “gma eos” in the extended 50-degree range of temperatures (313.06-362.65 k) and pressures (0.5-40 mpa) was calculated. th...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2007
navid moradi tehrani hamid modarress mohsen mohsen nia

solubility of high molecular weight n-paraffins in supercritical carbon dioxide has been a matter of interest to many researchers. however, not sufficient solubility experimental data are available although the methods by which the experimental data are obtained have many varieties. utilizing cubic equations of state is an effective method for solubility prediction of n-paraffins in supercritic...

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