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.
The requirement for low exhaust noise in emergency power systems continues to be a hot topic for facility managers (and code enforcement officials!). In light of this demand, exhaust silencer manufacturers have designed ever-quieter solutions to abate noise, but a lack of consistency has remained in how silencers are rated for sound attenuation performance. The Electrical Generating Systems Association (EGSA), through a newly-published Standard, has now provided guidelines to address this issue.
With over 900,000 engines estimated to be affected, there are lots of people searching for knowledge on the requirements of RICE NESHAP. As with most Federal regulations, the reading can be extensive, confusing and the process to achieving compliance quite intimidating. If you are the owner/operator for an affected engine, you should know that compliance is relatively simple, once you have identified whether you need to comply in the first place. This guide will provide some background on the regulations, and will help you navigate your way to compliance.