نتایج جستجو برای: air flow
تعداد نتایج: 669553 فیلتر نتایج به سال:
In this paper double flow packed bed solar air heater has been investigated theoretically. The effect of air mass flow rate, porosity and different depth ratios at study state conditions on the thermal performance of a double flow packed bed solar air heater is found by using the alternative simulation system. Comparisons between the measured thermal and effective thermal efficiency of the doub...
Dense Medium Cyclone is a high capacity device that is widely used in coal preparation. It is simple in design but the swirling turbulent flow, the presence of medium and coal with different density and size fraction and the presence of the air-core make the flow pattern in DMCs complex. In this article the flow pattern simulation of DMC is performed with computational fluid dynamics and Fluent...
Due to thermal sensitivity, costs and importance of dying process for foods, it seems to be necessary looking for new optimal approaches which could consider effects of various parameters in this research, drying process of kohlrabi in a fluid bed, exposed to air and microwave, will be analyzed using response surface method. Microwave power, temperature and flow rate of inlet air will be studie...
The purpose of present study is to investigate the dynamic response of two conventional types of solid oxide fuel cells to the inlet air mass flow rate variation. A dynamic compartmental model based on CFD principles is developed for two typical planar and tubular SOFC designs. The model accounts for transport processes (heat and mass transfer), diffusion processes, electrochemical processes, a...
In this work, a cabinet solar dryer for thin layer drying of Cuminum cyminum was evaluated in two conditions (Indirect and Mixed). Four levels of drying air flow rates (three active and one passive) were adopted. The experiments were performed in a completely randomized Block design pattern in three replications. Drying durations were kept constant (90 min) for all the experiments. Average init...
The objective of this work was to develop a new design of an intake manifold through a 1D simulation. It is quite familiar that a duly designed intake manifold is essential for the optimal performance of an internal combustion engine. Air flow inside the intake manifold is one of the important factors, which governs the engine performance and emissions. Hence the flow phenomenon inside the i...
ABSTARCT: Flow measurement plays vital role in Air conditioning leak detection to measure leakages of conditioned air in a airconditioning system of the building. It is costlier process to convert properties of air into making of desired atmosphere of the building. The leakage of conditioned air is cause of loss of money. In this stems the need for accurate, economical measurement for leakages ...
INTRODUCTION A second cycle audit to evaluate the results after introduction of water impervious surgical gowns and drapes while performing Austin-Moore hemiarthroplasty as recommended by our previously published study. AIM To assess the difference in the re-operation rate following Austin-Moore hemiarthroplasty between procedures performed under laminar air-flow to those performed in convent...
In this research, a gas turbine blade cascade was investigated. Flow analysis around the blade was conducted using RSM and RNG.K-ε turbulence modeling and it is simulated by Fluent software. The results were considered for the cases as Mach number loss at the trailing edge of blade caused by vortexes that were generated at the end of blade. Effect of cooling flow through the trailing edge on th...
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