I have a project in which gas is produced in a large lagoon-type digester (similar to a landfill). The gas piping from the digester is HDPE (below ground) and then stubs above ground. The gas in the pipe is low pressure (sometimes slight vacuum).
Does NFPA 54 apply in this situation? If so...
I'm looking for information regarding methods for balancing biogas flows from multiple anaerobic digesters. The digesters have balloon type covers and develop ~10" wc. A few of the digesters are located further away from the common collection point and will need to have a low pressure blower...
