NEW THERMAL CONDUCTIVITY MICROSENSOR TO MEASURE THE METHANE NUMBER OF NATURAL GAS (Record no. 170517)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 02257nam a2200193 4500 |
| 008 - CÓDIGOS DE INFORMACIÓN DE LONGITUD FIJA - INFORMACIÓN GENERAL | |
| Campo de control de longitud fija | 260224s xxu |
| 245 00 - TITULO | |
| Título | NEW THERMAL CONDUCTIVITY MICROSENSOR TO MEASURE THE METHANE NUMBER OF NATURAL GAS |
| 270 ## - FECHA DE CARGA | |
| Fecha de carga | 02/09/2025 ; 2009-09-30 |
| 300 ## - DESCRIPCION FISICA | |
| Otra extensión | 12 p. |
| 500 ## - NOTAS | |
| Nota general | Consulte por la disponibilidad de este documento |
| 520 ## - RESUMEN, ETC | |
| Resumen | As a result of the liberalization of the gas market, more important and frequent fluctuations of the natural gas composition are expected. Owing to this fact, the on-site control of the gas properties will become necessary for end-users. Methane Number is the parameter used to quantify knocking tendency of a gas, parameter especially relevant when natural gas is used as engines fuel. The present paper describes a measurement method to determine the Methane Number of natural gas as well as the microdevices developed to carry out these measurements. The method is based on the measurement of the gas Thermal Conductivity and the existing correlation between this parameter and the Methane Number of natural gas. The developed microsensors are ascribed to Microsystems Technology. They integrate two platinum thermoresistors: a reference one to measure the gas temperature and a sensing one to measure its thermal conductivity. In order to reduce thermal losses to the silicon substrate two different approaches are proposed: a) microbridges to locate the thermoresistors and b) oxidized porous-silicon isolation. In the range of natural gas compositions considered (60-100MN), applying a 50mA constant current to the sensing thermoresistor, obtained sensitivity is 0.95mV/1MN. Thermal stability and mechanical behaviour of both approaches are compared. Furthermore, the microdevices are mounted in a gas line in order to test them in field. Additional tests are still required but it can be concluded that the developed microsensors are a valid alternative to measure in situ the Methane Number of natural gas. |
| 773 ## - CORRECCIÓN | |
| Partes relacionadas | |
| 942 ## - DESC. DE MATERIAL | |
| Tipo de item KOHA | Congresos (trabajos presentados) |
| 100 1# - RESPONSABLE PERSONAL | |
| Apellido, Nombre | Gutierrez, A. M. |
| 9 (RLIN) | 22208 |
| 110 2# - RESPONSABLE INSTITUCIONAL | |
| Responsable Institucional | International Gas Union, IGU |
| 9 (RLIN) | 13105 |
| 111 2# - AUTORIDAD DE CONGRESO | |
| Nombre de congreso | World Gas Conference (23rd. : 2006 jun 5-9 : Amsterdam, The Netherlands) |
| 9 (RLIN) | 39854 |
| Biblioteca propietaria | Biblioteca actual | Fecha de adquisición | Inventario | Total de préstamos | Inventario | Fecha de carga | Tipo de item KOHA |
|---|---|---|---|---|---|---|---|
| Biblioteca Alejandro Angel Bulgheroni | Biblioteca Alejandro Angel Bulgheroni | 05/03/2026 | 200045357 | 200045357 | 05/03/2026 | Congresos (trabajos presentados) |
