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Article Highlights
Take a Bite Out of Lifecycle Costs
For process plant components and equipment, lifecycle costs can dwarf up-front purchase costs. This is particularly true nowadays because of rising energy prices, higher labor costs and the increasing need for uptime. But automation can help monitor, control and cut lifecycle costs. Lifecycle costs represent the total cost of ownership of an asset, such as a control valve, reactor vessel, boiler or any other piece of equipment. Read more »

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Pursuing Sustainability With VFDs
Some control engineers have known that VFD was an alternative to the control valve for many years, but they have been reluctant to specify use of the VFD chiefly because they’re unfamiliar with it. The primary incentive to use a VFD for flow control has been energy savings by elimination of the need to pump liquid to a high pressure, only to waste that pressure as energy loss through the control valve. Using a VFD to drive the pump motor allows the use of the pump speed rather than control valve plug position as the controlled variable. Read more »

More Water Savings Through Automation
Water districts and municipalities in California must meet growing demand with limited supply, putting more stress on the water distribution infrastructure. Response to these challenges has resulted in a complex maze of supply systems for getting water to local communities. Southern California in particular places a high priority on investments in maintaining and upgrading water supply infrastructures, due in part to its desert climate. Read more »

Distillation Control & Optimization eBook
During the global transition from the present oil-based economy to one based on clean and inexhaustible energy, the importance of distillation will increase. Ethanol will need to be distilled, and new oil refineries will need to be built. It is hoped that the designers of these new refineries will benefit from this discussion, which describes the state of the art in the control and optimization of distillation processes. Read more »

Sept. 12, 2011


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