RT info:eu-repo/semantics/article
T1 Integration of biogas in the natural gas grid: thermodynamic characterization of a biogas-like mixture
A1 Hernández Gómez, Roberto
A1 Fernández Vicente, Teresa
A1 Martín González, María del Carmen
A1 Mondéjar Montagud, María Engracia
A1 Chamorro Camazón, César Rubén
K1 Termodinámica
K1 Biogas
K1 Thermodynamic characterization
K1 Density
K1 Single sinker densimeter
K1 GERG 2008
AB The composition of biogas may vary significantly due to the diversity of production sources, making essential to have a detailed knowledge of their thermophysical properties in order to develop and validate methods for the estimation of density, heat capacity and calorific value of biogas and biomethane. In this work the thermodynamic behavior of a synthetic biogas-like mixture, composed by methane (50%), carbon dioxide (35%), nitrogen (10%) and carbon monoxide (5%), is studied through accurate (p,ρ,T) experimental data obtained by using a single sinker densimeter with magnetic suspension coupling. The mixture was prepared by the gravimetric method at the Spanish National Metrology Institute (Centro Español de Metrología, CEM) and the accurate density measurements have been performed in the temperature range from (275 to 400) K and pressures up to 20 MPa. This work is part of the research project ‘Metrology for Biogas’ supported by the European Metrology Research Program. Experimental data are compared with the densities calculated with the GERG-2008 equation of state. Deviation between experimental and estimated densities is within a ±0.2% band at all temperatures, except at the lower temperature, 275 K, and pressures from (6 to 15) MPa, which shows a higher deviation.
PB Elsevier
SN 0021-9614
YR 2015
FD 2015
LK http://uvadoc.uva.es/handle/10324/29101
UL http://uvadoc.uva.es/handle/10324/29101
LA eng
NO J. Chem. Thermodynamics 84 (2015) 60–66
NO Producción Científica
DS UVaDOC
RD 26-abr-2024