Izračun metanskega števila zmesi zemeljskega plina in vodika

Blagojevič, Maja (author), Senegačnik, Andrej (mentor)

Metansko število je eden od parametrov kakovosti zemeljskega plina na podlagi standarda EN 16726. V nalogi je bila narejena primerjava med izračuni metanskega števila po poenostavljenem modelu in standardu SIST EN ISO 15403-1:2008 ter po veljavni različici standarda SIST EN 16726:2016+A1:2018. Vrednosti metanskega števila, ki smo jih dobili z lastnim Excelovim programom na podlagi standarda EN 16726, se zelo dobro ujemajo z rezultati komercialno dostopnega programa združenja EUROMOT. Izračun metanskih števil z Excelovim programom je primeren tudi za zmesi zemeljskega plina z vodikom. Dobljena odvisnost med metanskim številom in Wobbe indeksom za različne sestave zemeljskega plina dokazuje nelinearno povezanost veličin.

• Language: Slovenian
• Keywords: metansko število, zemeljski plin, kakovost plina, sestava plina, standard EN 16726, Wobbe indeks
• Work type: Final paper
• Typology: 2.11 - Undergraduate Thesis
• Organization: FS - Faculty of Mechanical Engineering
• Place of publishing: Ljubljana
• Publisher: [M. Blagojevič]
• Year: 2023
• Number of pages: XII, 44 str.
• PID: 20.500.12556/RUL-148719
• UDC: 662.767:665.612:006.83(043.2)
• COBISS.SI-ID: 163575043
• Publication date in RUL: 30.08.2023

Secondary language

• Language: English
• Title: Methane number calculation for mixtures of natural gas and hydrogen

Abstract

The methane number is one of the quality parameters of natural gas based on the EN 16726 standard. In the assignment, a comparison was made between the calculations of the methane number according to the simplified model and the SIST EN ISO 15403-1:2008 standard and according to the valid version of the SIST EN 16726:2016+ standard. A1:2018. The values of the methane numbers obtained with our own Excel program according to the EN 16726 standard agree very well with the results of the commercially available program of the EUROMOT association. The calculation of methane numbers in the Excel program is also suitable for natural gas-hydrogen mixtures. The obtained correlation between the methane number and the Wobbe index for different compositions of natural gas proves the non-linear relationship of the quantities.

• Keywords: methane number, natural gas, gas quality, gas composition, standard EN 16726, Wobbe index