Every emergency generator application includes an exhaust system designed to route exhaust gases out of the engine room. These exhaust systems consist of piping, elbows and, very importantly, flexible sections that must be used to account for the engine’s vibration, and also for the pipe growth experienced as the exhaust gases quickly rise to 800°F and more. If you are designing the exhaust system for an emergency generator, this article may keep you from making one of the most common mistakes that I see in the field.
Specifying fuel-oil piping for below-ground installations is a sensitive area of design, due to the potential for leaks and the subsequent contamination of ground water. In most jurisdictions, regulatory agencies will require secondary containment and interstitial space monitoring for any fuel oil piping that is in contact with the soil. This article describes a popular example of a secondary containment steel piping system, and two related devices designed for automatic leak monitoring.