Abstracts

Engineering and manufacturing industries

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Dealing with steam trap leaks

Article Abstract:

The temperature method, sonic method, visual method and electronic monitoring are the techniques used in detecting steam trap leaks. For instance, the temperature method gives a rough estimate of the system's upstream and downstream pressure. However, the temperature method is the least accurate of all the leak detection methods. On the other hand, electronic monitoring can locate failed traps by sensing heat heat or measuring the variables across the trap.

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Process control across the Internet

Article Abstract:

The Internet Control System (ICS) is a Web-enabled control system to be used for unit and area control applications in which controllers, programmable logic controllers (PLCs) and distributed control systems (DCSs) may be ineffective. The ICS has the functionality of a robust control system and the global communication infrastructure of the Internet. It is used to bridge the cost and performance gaps between loop controllers, PLCs and DCSs.

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Crystallization sans solvents

Article Abstract:

Chemical process industries have developed innovative crystallization methods that improve crystal-size distribution and product purity. These methods do not require solvents, the use of which adds impurity to the product. Among the new methods are melt crystallization, suspension crystallization, anti-solvent crystallization and high-pressure crystallization.

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