A novel dynamic method for the storage of calibration gas mixtures based on thermal mass flow controllers

被引：10
作者：
Loianno, Valerio [1 ]
Mensitieri, Giuseppe [1 ]
机构：
[1] Univ Naples Federico II, Dept Chem Mat & Prod Engn, Piazzale Tecchio 80, I-80125 Naples, Italy
来源：
MEASUREMENT SCIENCE AND TECHNOLOGY | 2022年 / 33卷 / 06期
关键词：
thermal mass flow controller; gas metrology; gas analysis; ATOMIC WEIGHTS;
D O I：
10.1088/1361-6501/ac5a2f
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A dynamic method for the storage of calibration gas mixtures is presented using thermal mass flow controllers (MFCs) connected to a dead end volume. The approach relies on barometry to calibrate the unknown constant volume and two MFCs which regulate the flow rate of carbon dioxide and methane respectively. Binary gas mixtures of these components are prepared and stored within the calibrated volume tank up to 9 bar at ambient temperature. Thermodynamic data of pressure, temperature and density of the gas mixtures are retrieved. The expanded uncertainties at 95% confidence level of the molar fraction and the density of the mixture are evaluated. FTIR Spectroscopy is used in situ to analyse the gas mixtures.
引用
收藏
页数：8
相关论文
共 15 条
[1]  
[Anonymous], 2019, 614512019 EN ISO
[2]  
[Anonymous], 2015, 614212015 EN ISO
[3]   A FLEXIBLE FOIL, GRAVITY-DRIVEN MIXER FOR PREPARATION OF GAS-MIXTURES [J].
BRUGGE, HB ;
HOLSTE, JC ;
HALL, KR .
REVIEW OF SCIENTIFIC INSTRUMENTS, 1992, 63 (12) :5802-5803
[4]   EXPERIMENTAL CROSS VIRIAL-COEFFICIENTS FOR BINARY-MIXTURES OF CARBON-DIOXIDE WITH NITROGEN, METHANE AND ETHANE AT 300 AND 320-K [J].
BRUGGE, HB ;
HWANG, CA ;
ROGERS, WJ ;
HOLSTE, JC ;
HALL, KR ;
LEMMING, W ;
ESPER, GJ ;
MARSH, KN ;
GAMMON, BE .
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS, 1989, 156 (01) :382-416
[5]   The NIST quantitative infrared database [J].
Chu, PM ;
Guenther, FR ;
Rhoderick, GC ;
Lafferty, WJ .
JOURNAL OF RESEARCH OF THE NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY, 1999, 104 (01) :59-81
[6]  
Dowdell RB., 1974, FLOW ITS MEASUREME 1, Vvol 1
[7]   Magnetic suspension balance for simultaneous measurement of a sample and the density of the measuring fluid [J].
Dreisbach, F ;
Lösch, HW .
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, 2000, 62 (02) :515-521
[8]   High-accuracy gas flow dilutor using mass flow controllers with binary weighted flows [J].
Goody, BA ;
Milton, MJT .
MEASUREMENT SCIENCE AND TECHNOLOGY, 2002, 13 (07) :1138-1145
[9]   A Hyphenated Approach Combining Pressure-Decay and In Situ FT-NIR Spectroscopy to Monitor Penetrant Sorption and Concurrent Swelling in Polymers [J].
Loianno, Valerio ;
Baldanza, Antonio ;
Scherillo, Giuseppe ;
Jamaledin, Rezvan ;
Musto, Pellegrino ;
Mensitieri, Giuseppe .
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2021, 60 (15) :5494-5503
[10]   COMPRESSIBILITY OF GASES .1. THE BURNETT METHOD - AN IMPROVED METHOD OF TREATMENT OF THE DATA - EXTENSION OF THE METHOD TO GAS MIXTURES [J].
PFEFFERLE, WC ;
GOFF, JA ;
MILLER, JG .
JOURNAL OF CHEMICAL PHYSICS, 1955, 23 (03) :509-513
12