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Pump Seals to Manage Water

Paying attention to the seal design used in centrifugal pumps can help in water management. This article uses the beverage industry to illustrate this point Economic survival in a climate where industry competition and environmental concerns converge is not easy.…

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Effective Contracting for a Pilot Plant

Contracting a pilot plant is a viable approach for any organization. However, it can be fraught with potential issues, which need to be understood and addressed in advance Reduced in-house resources have limited the options many organizations have for designing…

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Improving a Thermal Loop: The Power Controller

Controlling the temperature of a process using a thermal loop is important in many applications. The importance of a power controller is discussed here For any process where temperature needs to be monitored or controlled, a thermal loop is required.…

Bolt-Load Considerations Associated with ‘Hot Bolting’

In some situations, it might be necessary to remove or replace a bolt during operation. This article shows how to determine the proper bolt load to prevent leaks Bolted flange joints (Figure 1) are part of pressure vessel and piping…

A System Approach with Flow Analysis

Taking a system approach to find the root cause of a problem can be more beneficial than simply replacing a problematic pump. This article explains why We want the best reliability with anything that we work with. In a plant…

Sequencing Batch Reactors for Water Treatment

Sequencing batch reactors (SBRs) are a variation on the activated sludge process in wastewater treatment. This article provides an overview of SBRs, including their history, current use and future outlook Sequencing batch reactors (SBRs) are a type of wastewater treatment…

Backwash Tuning for Reliable Sand Filtration

This practical guide provides information on proven backwash-tuning techniques that will improve the reliability and robustness of sand filters in water treatment applications Water is a fundamental part of virtually all plants in the chemical process industries (CPI). Examples of…

Hydrogen Piping Systems: Mitigating Pitfalls by Design

This overview presents guidance for the safe design of piping systems that are used for the distribution of hydrogen gas Hydrogen gas is a very volatile fluid that has a high propensity to leak. This is a very dangerous and…

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Explosion Protection: Considerations for Combustible Dusts

Managing the risk from combustible dust explosions involves a number of strategies for preventing explosions, as well as isolating, venting and suppressing explosions if they occur. Complying with applicable NFPA standards is a pathway toward minimizing risk Combustible dust explosions…

Can You Trust the Joukowsky Equation for Waterhammer?

The Joukowsky equation is often relied upon to determine the maximum possible fluid pressure inside a pipe, but there are certain scenarios where this equation does not return the expected conservative result for overpressurization We engineers love our formulas. Especially…