04252017Tue
Last updateTue, 25 Apr 2017 6pm

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Supercritical Power Plants: Materials and Specifications

Charles Henley, a senior mechanical engineer at Black & Veatch, was one of the presenters at the 2017 VMA Technical Seminar held in early March in Nashville. His presentation on supercritical power plants was especially well received because he shed light on some of the critical issues. This report is based on what he said in his session.


Valve Selection in Pulp and Paper Operations

Over the centuries, the pulp and paper industry evolved greatly: from the first recorded paper made from rag stock in China (circa 100 AD) to paper derived from wood pulp (the 1840s) to the highly technical manufacturing and chemical processes of today. Paper use historically was for communication, but electronic channels have created significant decreases in newsprint and coated paper. However, other industry sectors emerged, and the world’s growing population and modernized economies mean these new sectors, which include packaging and boxboard, tissue, toweling, diaper and personal hygiene products, among others, are flourishing.

Wastewater Treatment

Society’s desire for a clean environment shines light on the importance of understanding the essential role wastewater treatment plants have in our communities. Congress passed the Clean Water Act in 1972 to control the discharge of effluent into water systems and waterways, and provided grants to allow municipalities to meet these new requirements. Since then, technologies such as optimized treatment systems and automated valves have been used to make our country’s wastewater plants technical marvels. The purpose of this article is to explain the various critical roles that valves play in the operation of typical wastewater plant processes.

Food and Beverage Processing

When wandering the grocery store aisles, it’s easy to forget that for every colorful package that sits on the shelves, a myriad of processes go into preparing the foods inside. Whether it’s cereal, breakfast pastries, cookies or canned peaches, everything must be either steamed, dehydrated, pulverized, pasteurized or otherwise treated to fit into the cans, boxes and cellophane packages.

Offshore Oil Extraction and Transportation

Offshore oil facilities come to the forefront of our thinking these days only when a catastrophic accident occurs aboard a platform or other facility. That’s because they are generally out to sea and out of sight. It’s difficult to comprehend the varied and complex piping systems that allow a rig or a drill ship to operate successfully and safely, but they’re an integral part of what’s happening every day. These piping systems contain a multitude of valves built to multiple specifications to handle a variety of flow control challenges. They also control various system loops and contain pressure relief devices.

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