Hardware Selection Aspects

Krishna, R., Hardware selection and design aspects for reactive-distillation columns, in Reactive Distillation, status and future directions, Sundmacher, K. and Kiele, A. (eds.), Wiley, New York,... 

Hardware Selection and Design Aspects for Reactive Distillation Columns... 

Krishna, R. Hardware Selection and Design Aspects for Reactive Distillation Columns, in Sundmacher, K. Kienle, A. Reactive Distillation, Wiley-VCH, Weinheim 2003... 

Installation qualification is aimed primarily at new instruments. This is the stage when the checks are carried out to confirm that the instrument received is as specified and correctly installed in the selected environment. This includes both hardware and software. It may be convenient to use a check-list approach to this phase as that ensures everything is checked. This stage covers the installation up to and including its initial response to power, if that is relevant. In addition it may be appropriate to repeat aspects of IQ following relocation or upgrades of instruments. 

There are many topics (such as searching chemical literature, Current Contents, or Citation Index the choice of hardware and maintaining the system use of statistical packages, etc.) that could be included into the book, but at some point a selection of what are the most common, and at the same time the most important, aspects of PCs in chemistry must be made. After all, the readers will judge if too many vital topics were omitted or not. 

To cope with the bewildering variety of software approaches and hardware platforms it is beneficial to make use of models for these different aspects. Thus, we need to detail programming models, parallel computer models and performance models. Designing these types of models are large subjects in themselves [12,22,23]. For the case of MD we need to select the models that fit our needs best and put them to work. 

Selecting the hardware correctly is generally a matter of determining or specifying capacity and compatibility with standards. Hardware capacity can usually be simplified to two aspects size and speed. 

Chapter 4 deals with the selection of a chromatographic system, i.e. the optimal combination of stationary phase, eluent or mobile phase for a given separation task. These key issues focus not only on solely scientific questions, but also take into account economy, speed, time pressure, hardware requirements, automation and legal aspects towards documentation, safety and others. Obviously, such rules of thumb may not cover all possible scenarios, but they may be useful in avoiding pitfalls. 

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