Mass transfer coefficient

This work presents a system of a non-linear PDEs, which governing the MHD flow of a Homann nanofluid with heat and mass transfer through a porous medium. The problem is solved numerically by making use of the finite difference method. The formulas of the velocity components, temperature and concentration are obtained as functions of the problem physical parameters. The effects of these parameters on the solutions are illustrated numerically and graphically through a set of figures to reinforce the

_____________________________________________________ Corresponding Author Tel no: (+234)8035050573 E-mail: kunlemusa@yahoo.com equilibrium with the surroundings. The heat generated involves the body, heat transfer and heat storage [5]. The generated he in the body is as a result of metabolic activity (M), which offers the energy to perform the physical activity. The heat transfer is achieved through conduction (K), convention (C), radiation (R), and evaporation (E) [5]. While the rate of heat storage

DOYMAZ Based on these results, pretreated samples with citric acid solution had the highest effective moisture diffusivity compared with other samples. The pretreatment solution has probably affected the internal mass transfer during drying. The values of Deff obtained from this study lie within in general range 10-12 to 10-8 m2/s for drying of food materials (Zogzas et al. 1996). These values are comparable with 4.56 ¥ 10-10 to 8.5 ¥ 10-10 m2/s for air-drying of okra

system by Nanda Kishore. The desiccant chosen for the analysis is aqueous solution of calcium chloride. The effect of different operating variables on performance of both dehumidifier and regenerator are studied. The parameters studied are the effect of mass air flow rate, air inlet temperature, and desiccant inlet temperature. The practicability of dehumidification of supply air by the desiccant loop of the hybrid system is demonstrated. A S Alosaimy is experimented to Concentration of desiccant solution

under actuated miniature robots. An inertial appendage in the form of a tail was added to a robot to study the effects a tail would have on dynamic steering. Tails can contribute to steering through either a shift in the robots center of mass or through the transfer of angular momentum. The goal of this study is to provide a model of a legged robot that successfully uses an inertial tail for faster and sharper turns. Other factors that can affect the robots movement are also studied such as changing

system by Nanda Kishore. The desiccant chosen for the analysis is aqueous solution of calcium chloride. The effect of different operating variables on performance of both dehumidifier and regenerator are studied. The parameters studied are the effect of mass air flow rate, air inlet temperature, and desiccant inlet temperature. The practicability of dehumidification of supply air by the desiccant loop of the hybrid system is demonstrated [1]. A S Alosaimy is experimented to Concentration of desiccant solution

hand, the prevailing high temperature gradients, necessitates the provision for expansion to avoid build of thermal stresses for the integration. Hence, thermal management needs a holistic approach encompassing the areas of material selection, heat transfer and structural integration. The current state of art research is focused on achieving this by active cooling through endothermic fuel, which is used as a coolant due to the advantages such as reduced weight and improved heat sink capacities. Particularly

or desired properties of the matrix which are important for a composite structure are as follows: Reduced moisture absorption and Low shrinkage. Low coefficient of thermal expansion. Good flow characteristics so that it penetrates the fibre bundles completely and eliminates voids during the compacting/curing process. Must be elastic to transfer load to fibres. Reasonable strength, modulus and elongation (elongation should be greater than fibre). Strength at elevated temperature (depending

(stander international) units of exposure are coulomb/Kg of dry air. 1R = 2.58 × 10-4 C/Kg in air 2.2.3) Absorbed dose unit: Sometimes also known as the physical dose, defined by the amount of energy deposited in a unit mass in human tissue or other media. The original unit is the rad [100 erg/g]; it is now being widely

get off, you could throw an object away from you. When you applied force to the object you threw, it also applied an equal force pushing you back. You would travel in the opposite direction from the throw, although slower, because you probably have mass more than the object you threw. Static and Kinetic Friction Friction is a key concept when you are attempting to understand car accidents. The force of friction is a force that resists motion when two objects are in contact. If you look at the