01963nmc a2200217 4500 20260608201335.0 260224s2005 xxu ing Inglés Microfabricated BTU monitoring device for system-wide natural gas monitoring Albuquerque Sandia National Laboratories 2005 2009-05-20 ; 29/07/2008 Adobe Acrobat (PDF) The natural gas industry seeks inexpensive sensors and instrumentation to rapidly measure gas heating value in widely distributed locations. For gas pipelines, this will improve gas quality during transfer and blending, and will expedite accurate financial accounting. Industrial endusers will benefit through continuous feedback of physical gas properties to improve combustion efficiency during use. To meet this need, Sandia has developed a natural gas heating value monitoring instrument using existing and modified microfabricated components. The instrument consists of a silicon micro-fabricated gas chromatography column in conjunction with a catalytic micro calorimeter sensor. A reference thermal conductivity sensor provides diagnostics and surety. This combination allows for continuous calorimetric determination with a 1 minute analysis time and 1.5 minute cycle time using air as a carrier gas. This system will find application at remote natural gas mining stations, pipeline switching and metering stations, turbine generators, and other industrial user sites. Microfabrication techniques will allow the analytical components to be manufactured in production quantities at a low per-unit cost. ARCHIVO Robinson, Alex L. 39867 Moorman, Mathew W. 39868 Manginell, Ronald P. 39869 Sandia National Laboratories 39870 168556 168556 http://www.prod.sandia.gov/cgi-bin/techlib/access-control.pl/2005/056829.pdf 0 0 0 0 236375 BVIAPG BVIAPG 2026-03-05 200043317 0 200043317 2026-03-05 14:48:48 2026-03-05 INTERNET