نتایج جستجو برای: mass transfer flux

تعداد نتایج: 820187  

Journal: :پژوهش های علوم و صنایع غذایی ایران 0
v. mohammadpour karizaki m. t. hamed mosavian

frying is an important unit operation used widely both in domestic and industrial cooking. reduced pressure (vacuum), microwave, deep fat and pan frying are the most important methods of food frying. final product has good organoleptic quality (colour, texture, and flavour). the accuracy of the knowledge of mass transfer parameters (effective diffusivity coefficient, dimensionless biot number a...

Journal: :Environmental science & technology 2012
Stanley B Grant Ivan Marusic

Boundaries: Interfacial Flux in Environmental Flows’” W thank Thibodeaux et al. for their interest in our recent article in Environmental Science & Technology. While they touch on numerous topics, their chief criticism of our article can be summarized as follows: hyporheic exchange is an advective process, and therefore cannot be represented by a mass transfer coefficient (or its inverse, the m...

F. Vahidinia M. Rahmdel

In this paper, Turbulent mixed convective heat transfer of water and Al2O3 nanofluid has been numerically studied in a horizontal tube under non-uniform heat flux on the upper wall and insulation in the lower wall using mixture model. For the discretization of governing equations, the second-order upstream difference scheme and finite volume method were used. The coupling of pressure and veloci...

2016
Michael Nayak Francis Nimmo Bogdan Udrea

Impacts on planetary bodies can lead to both prompt secondary craters and projectiles that reimpact the target body or nearby companions after an extended period, producing so-called ‘‘sesquinary” craters. Here we examine sesquinary cratering on the moons of Mars. We model the impact that formed Voltaire, the largest crater on the surface of Deimos, and explore the orbital evolution of resultin...

Melika Zakeri Norazlila Mohammad Niza Reza Davarnejad, Shahrzad Arpanahzadeh

In this study, the diffusivity and volumetric mass transfer coefficients for the extraction of β-carotene from crude palm oil using CO2 solvent in supercritical fluid were determined in the pressure range of 7.5-17.5 MPa and temperature range of 80-120 ºC. For this purpose, a statistical method was applied in order to minimize the number of experiments required. The volumetric ma...

2015
Chen Wang Jie Ren Jianshu Cao

Unraveling the microscopic mechanism of quantum energy transfer across two-level systems provides crucial insights to the optimal design and potential applications of low-dimensional nanodevices. Here, we study the non-equilibrium spin-boson model as a minimal prototype and develop a fluctuation-decoupled quantum master equation approach that is valid ranging from the weak to the strong system-...

Journal: :نشریه دانشکده فنی 0
حسین بهمنیار پریسا خدیوپارسی

in order to simulate the rotating disk contactor all hydrodynamic parameters, dispersed phase hold-up, characteristic velocity, mean drop size, drop size distribution, axial mixing and mass transfer have been taken into account. mechanisms of mass transfer (stagnant, circulating, oscillating drops) were used in this study. column height found from effect of mean drop size and drop size distribu...

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