000			01963nmc a2200217 4500
005			20260608201335.0
008			260224s2005 xxu ing
041			_aInglés
245	0	0	_aMicrofabricated BTU monitoring device for system-wide natural gas monitoring
260			_aAlbuquerque _bSandia National Laboratories _c2005
270			_a2009-05-20 ; 29/07/2008
500			_aAdobe Acrobat (PDF)
520			_aThe 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.
942			_cARCHIVO
100	1		_aRobinson, Alex L. _939867
100	1		_aMoorman, Mathew W. _939868
100	1		_aManginell, Ronald P. _939869
110	2		_aSandia National Laboratories _939870
999			_c168556 _d168556
856			_uhttp://www.prod.sandia.gov/cgi-bin/techlib/access-control.pl/2005/056829.pdf