Accurate thermodynamic characterization of a synthetic coal mine methane mixture |
| |
Affiliation: | 1. Grupo de Termodinámica y Calibración (TERMOCAL), Dpto. Ingeniería Energética y Fluidomecánica, Escuela de Ingenierías Industriales, Universidad de Valladolid, Paseo del Cauce, 59, E-47011-Valladolid, Spain;2. BAM Bundesanstalt für Materialforschung und -prüfung, D-12200 Berlin, Germany;1. Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China;2. University of Chinese Academy of Sciences, Beijing 100039, China;1. GATHERS Group, Aragón Institute for Engineering Research (I3A), Universidad de Zaragoza, c/ Mariano Esquillor s/n, 50018 Zaragoza, Spain;2. GATHERS Group, AgriFood Institute of Aragón (IA2), Universidad de Zaragoza, Facultad de Ciencias, 50009 Zaragoza, Spain;1. Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China;2. University of Chinese Academy of Sciences, Beijing 100039, China;1. Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China;2. University of Chinese Academy of Sciences, Beijing, 100039, China |
| |
Abstract: | In the last few years, coal mine methane (CMM) has gained significance as a potential non-conventional gas fuel. The progressive depletion of common fossil fuels reserves and, on the other hand, the positive estimates of CMM resources as a by-product of mining promote this fuel gas as a promising alternative fuel. The increasing importance of its exploitation makes it necessary to check the capability of the present-day models and equations of state for natural gas to predict the thermophysical properties of gases with a considerably different composition, like CMM. In this work, accurate density measurements of a synthetic CMM mixture are reported in the temperature range from (250 to 400) K and pressures up to 15 MPa, as part of the research project EMRP ENG01 of the European Metrology Research Program for the characterization of non-conventional energy gases. Experimental data were compared with the densities calculated with the GERG-2008 equation of state. Relative deviations between experimental and estimated densities were within a 0.2% band at temperatures above 275 K, while data at 250 K as well as at 275 K and pressures above 10 MPa showed higher deviations. |
| |
Keywords: | Coal mine methane Density measurements Single sinker densimeter GERG-2008 equation of state |
本文献已被 ScienceDirect 等数据库收录! |
|