May 2011

An integral treatment for combined heat and mass transfer by mixed convection along vertical surface in a saturated porous medium

  Combined free and forced convection heat and mass transfer over an impermeable vertical surface embedded in a saturated porous medium is considered. A similarity transformation has been used to study the mixed convection boundary-layer flow over a semi-infinite vertical flat plate. Integral solutions are derived for the coupled nonlinear similarity equations of coupled heat and mass transfer in porous media...

Author(s):   V. J. Bansod and B. Ambedkar      

May 2011

Evaluation of FRP (fiberglass reinforced plastic) and RC (rapid cooling) cooling tower

  An evaluation of applicable materials for an industrial cooling tower is presented in this study. Advantages and disadvantages of different sets of materials including reinforced concrete and FRP (Fiber-Reinforced Polymer Composites) for cooling tower structure are discussed. After evaluating each material characteristic, the one case study of cooling tower is considered for cost estimation. The results...

Author(s):   Ali Reza Keyvani Boroujeni,    

May 2011

Construction of chain sampling plan-1 indexed through producer’s nano quality level and consumer’s nano quality level

  Motorola (1980) introduced the concept of “six sigma” as a quality philosophy and a management strategy, which when adopted in a system of organization will reduce wastages, increase the profit to the management and enhance the satisfaction of the customer. If this concept of six sigma is adopted in an organization it can results in 3.4 or less number of defects per million opportunities in the...

Author(s):   Radhakrishnan R. and Vinotha P.        

May 2011

Adhesive bonded single lap and over-lap joints of C/C, C/C-SiC composites and titanium alloy

  Carbon-carbon (C/C), carbon-carbon-silicon carbide (C/C-SiC) composites and titanium alloy substrates were bonded in single lap and overlap joints with phenolic resin to study the differences in joint strength of two similar and dissimilar materials under shear load. The results indicate that the bonding strength of single lap joint of C/C, C/C-SiC is more than the other ceramic and titanium alloy, whereas...

Author(s):   V. K. Srivastava Department of Mechanical Engineering, Institute of Technology, Banaras Hindu University, Varanasi- , India.and Shraddha Singh