Issues Relating to Scaleup of Efficiency Data

Since the point efficiency data and correlations (like eqn [10] are (or should be) based on local conditions, they should, in principle, remain valid on all scales. They are then integrated with flow conditions to predict the overall tray efficiency. Correlations such as eqn [11], which provide this function of integrating the point efficiency to provide tray efficiency, do not remain valid at all scales. It has been well documented that the liquid flow patterns change quite dramatically depending on the diameter of the column and the location of the weirs near the down-comer. In future one can expect computational fluid dynamics to provide detailed flow information using models that remain scale invariant over a wide range of diameters.

Solar Panel Basics

Solar Panel Basics

Global warming is a huge problem which will significantly affect every country in the world. Many people all over the world are trying to do whatever they can to help combat the effects of global warming. One of the ways that people can fight global warming is to reduce their dependence on non-renewable energy sources like oil and petroleum based products.

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