CARACTERIZAÇÃO DE MISTURAS DE GÁS NATURAL EMPREGADAS COMO PADRÕES NO MERCADO BRASILEIRO

Abstract

The natural gas has excellent characteristics techniques, economic and ambient, allowing that this fuel if presents as alternative for the energy matrix of the country. The commercialization of the natural gas demands the control of its characteristics physicist-chemistries in function of the consuming market. Thus, the necessity of that the assays produce resulted trustworthy and tracked, with the harmonious use of the metrologia and the normalization exists, propitiating the reduction of the costs associates to the production of goods and services, by means of the systematization, rationalization and ordinance of the processes, with the consequent economy for customers and suppliers. This work presents the analysis of performance of three different cylinders supplied by diverse producers. The measurements had been carried through in the laboratory of gaseous analyses of the Inmetro. For the judgment of the quality of the measurement results the calculation of the Error Normalized (En) in relation to the uncertainty was used. The results demonstrate the necessity of certification of gaseous mixtures for the national metrologicy agency