OPTICAL METHANE DETECTOR (OMD?) ACCOUNTS FROM THE FIELD

摘要

Public Service Electric and Gas (PSE&G), the Gas Research Institute (GRI) and Heath Consultants have worked closely together for several years in the design, evaluation and development of an improved leak survey approach based on the use of an infrared sensing system with novel electrooptics. The absorption of infrared light by methane is used as a means to detect the presence of leaking gas and has replaced conventional leak sampling techniques. Specialized technology was developed to selectively detect methane as a survey vehicle moves down the street. The main features of the equipment will be presented along with a detailed analysis of its effectiveness and advantages for overthe- surface leak detection based on actual field experiences from PSE&G, NYSE&G, and PG&E.