In August’s column, I discussed three-way control valves, their associated bypass pipes, and the importance of a balancing valve being located within the bypass pipe. Such balancing valves are needed ...

Bypass pipes, accompanied by a three-way control valve, are often seen in hydronic systems at both served loads (e.g., reheat coils) as well as at primary equipment (e.g., cooling towers). Reasons for ...

The cascading bypass system is perhaps the most common design for managing high-pressure steam in a combined-cycle plant. It is the hot reheat (HRH) bypass valve actuator that defines the valve’s ...

Managers know that valves are important to plant operation. That’s why keeping them in top condition is a priority. Upgrading to advanced valve designs and reducing stress on valve materials are just ...

As often as four times a year during winter months, a power plant in Wisconsin would miss a scheduled start of its combined cycle power plant (Figure 1) due to malfunctions of the turbine bypass ...

An engine's oil pump dispenses the pressurized lubricant that prevents opposing surfaces from contacting one another, carries heat away from certain areas, and maintains minimal valvetrain lash when ...

Combined-cycle power plants operate by integrating a combustion turbine generator (CTG) and heat recovery steam generator (HRSG) with a steam turbine generator (STG). However, during some modes of ...