نتایج جستجو برای: mass flow

تعداد نتایج: 933616  

2015
S Wang

A consolidation of literature indicating the advances in the field of mass flow measurement is presently not available. Last published review paper on Coriolis mas flow meter (CFM) was in 2006. This work is an attempt is made to summarize the available works on Coriolis mass flow meter. The literature is classified into three major groups. The first group gives the summary of construction and t...

Journal: :British heart journal 1991
K Hamaoka Z Onouchi Y Kamiya

In 19 children with Kawasaki disease without any cardiac sequelae the coronary sinus was cannulated via the femoral vein with a specially designed flow catheter and coronary sinus blood flow was measured by the continuous thermodilution method. There was a statistically significant positive correlation between coronary sinus blood flow and age, body surface area, and left ventricular mass, but ...

Desiccant wheels are widely used in buildings to control humidity and reduce energy consumption. A model is presented based on transient coupled heat and mass transfer, to model, design and analyze the effects of geometrical characteristics of a honeycombed rotary desiccant wheel and its performance. Governing equations are solved numerically using finite volume method and the model is validate...

In order to increase the efficiency of the conveyance of the granular solids, a new experimental set-up is designed. The test rig has longitudinal trapezoidal slots in its conveying pipes. Through experimentation, a correlation for friction factor in terms of solid mass flow rate, fluid flow rate and Froude number is presented. It is shown that the mixture friction factor for pipes with inn...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده مهندسی مکانیک 1388

بیماری تصلب شرائین، سخت شدگی دیوارهی شریان در اثر رشد پلاک چربی در شریانهای متوسط و بزرگ است که منجر به کاهش انعطافپذیری جداره و بالا رفتن فشار پمپاژ قلب برای خونرسانی میشود. در مراحل پیشرفتهتر این بیماری، ایجادگرفتگی شریان، انسداد و اثرات لخته شدن خون باعث کاهش اکسیژن موردنیاز در بافت مورد تغذیهی شریان و بروز سکته میشود. این بیماری در مناطق خاصی از سیستم رگی، اهم از دوشاخهها، انحناء و بهطور کل...

Mohammad Esmail Khorasani Ferdavani Mohammad Javad Shiekhdavoodi Seyyed Majid Sajjadiyeh Zahra Noorghadami,

Objective: Drying is one of the most important post-harvesting processes in agriculture. Drying method and also drying time have an important effect on the amount of energy required. In this study analysis of energy consumption for drying corn in dryer reservoir with flow of warm air and the effect of the temperature and height of product layer on the amount of energy consumption per unit mass ...

In this study, the unsteady double-diffusive mixed convection in the one and two-sided lid-driven cavities are studied and compared together using numerical SIMPLE algorithm. Uniform but different temperatures and mass concentrations are assumed at horizontal walls. The used fluid (pure air) was assumed incompressible and Newtonian. The used numerical method is firstly validated against previou...

Journal: :Transactions of the Society of Instrument and Control Engineers 1985

Iman Samea M. Ziaei-Rad,

This paper deals with numerical study of semi-finite incompressible flow of air over two blocks with different heights in the presence of a condensing-source, dispensing- contaminant in the flow, in both steady and unsteady states. The numerical solution of governing PDE equations are constructed by a finite-volume method applied on structured grid arrangement. The effects of air flow velocity,...

A. Rezavand F. Mobadersani, S. Jafarmadar

Demand for high-performance cooling systems is one of the most challenging and virtual issues in the industry and Pulsating heat pipes are effective solutions for this concern. In the present study, the best predictor correlations of flow boiling and condensation are taken into account to model a single turn pulsating heat pipe mathematically. These considerations, result in derivation of more ...

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