مرور Volume 43, Issue 1 بر اساس تاریخ انتشار
در حال نمایش موارد 1 - 9 از 9
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Determination of Thermo-physical Properties of Non-Newtonian Fluids Using a Coaxial Cylindrical Cell
(University of Tehran, 2009-10-01)In this study the thermal conductivity and the volumetric heat capacity of non-Newtonian fluids are investigated. These fluids find many applications in chemical, medical and food industries. They mostly have viscoelastic ...
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Study of Growth Kinetic Models of a Methanotroph Bacterium Growing on Natural Gas
(University of Tehran, 2009-10-01)Kinetics of single cell protein production from natural gas by a microorganism (a Methylomonas sp.) was studied experimentally and by modeling at equal amount of air and natural gas. Kinetic models of Monod, Moser, Teissier, ...
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Studying Dynamic behavior of Distributed Parameter Processes Behavior Based on Dominant Gain Concept and it’s Use in Controlling these Processes
(University of Tehran, 2009-10-01)In this paper, distributed parameter process systems behavior is studied in frequency domain. Based on the dominant gain concept that is developed for such studies, a method is presented to control distributed parameter ...
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Biosorption of Cd(II) and Ni(II) Ions From Aqueous Solution by Raw and Pre-Treated Cystoseira Indica Algae
(University of Tehran, 2009-10-01)
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Investigating and Mathematical Correlation of the Presence Effect of Solute and Surfactant on Mean Drop size in a Mixer-Settler
(University of Tehran, 2009-10-01)In this paper, the effects of several factors such as surfactant concentration, solute concentration, impeller speed and holdup on the mean drop diameter ( ) during emulsification have been studied in a single-stage ...
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Two Phase Modeling of Char Combustion in a Circulating Fluidized Bed Reactor Using ASPEN PLUS
(University of Tehran, 2009-10-01)In this paper, combustion of char in the riser of circulating fluidized bed was modeled using ASPEN PLUS. Since physical and chemical phenomena are involved in the process, the model integrates the two-phase hydrodynamic ...
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Investigation of a Cold Model of Internally Circulating Fluidized Bed with Draft Tube to be used as a two-Zone Fluidized Bed Reactor
(University of Tehran, 2009-10-01)In this research, a cold model of internally circulating fluidized bed is investigated. The aim is to find the effects of some of the operating parameters on the performance of the reactor. Experiments were carried out in ...
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The Synthesis of Carbon Nano Tubes by Arc Discharge Method in Liquid media
(University of Tehran, 2009-10-01)In this investigation a simplified arc discharge apparatus was used to synthesize mullti-wall carbon nanotubes. Because of not requiring vacuum equipment, heat exchange system, active or inert gases, this method is found ...
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Application of Markov-Chain Analysis and Stirred Tanks in Series Model in Mathematical Modeling of Impinging Streams Dryers
(University of Tehran, 2009-10-01)In spite of the fact that the principles of impinging stream reactors have been developed for more than half a century, the performance analysis of such devices, from the viewpoint of the mathematical modeling, has not ...