This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Calculating a Viscosity Correction for Humid Air in a Laminar Flow Element
Technical Paper
2018-01-0206
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Language:
English
Abstract
Laminar flow elements (LFEs) are commonly used to measure the flow rate of gases in various flow streams. Since LFEs operate on the principle of fully developed laminar pipe flow, the viscosity of the gas must be known. In many cases, the flowing gas is air of varying humidity, inlet temperature, and inlet pressure. While the viscosity of humid air has been studied extensively over the past 60+ years, the effects of humidity have not been consistently accounted for in the literature and industry documentation pertaining to LFE operation, and this can lead to errors. Additionally, the available LFE operational documentation is not presented in equation form; rather it is provided in tables and graphs which do not facilitate automation of the flow calculations during data acquisition. This paper provides a brief review of the available data and correlations for the viscosity of humid air and its application to the calculation of air flow rate using a laminar flow element.
Recommended Content
Technical Paper | Hydraulic System Cavitation: A Review |
Ground Vehicle Standard | Air Brake Valve Input-Output Characteristic Requirements |
Aerospace Standard | Aerospace Fluid Systems and Components – Pressure and Temperature Classifications |
Authors
Citation
Koeroghlian, M., Hall, M., and Matthews, R., "Calculating a Viscosity Correction for Humid Air in a Laminar Flow Element," SAE Technical Paper 2018-01-0206, 2018, https://doi.org/10.4271/2018-01-0206.Data Sets - Support Documents
Title | Description | Download |
---|---|---|
Unnamed Dataset 1 | ||
Unnamed Dataset 2 | ||
Unnamed Dataset 3 | ||
Unnamed Dataset 4 | ||
Unnamed Dataset 5 | ||
Unnamed Dataset 6 | ||
Unnamed Dataset 7 |
Also In
References
- Afkhami , B. , Zhao , Y. , and Ioesche , J. Carbureted SI Engine Air Flow Measurements SAE Technical Paper 2016-01-1082 2016 10.4271/2016-01-1082
- Rimberg , D. Pressure Drop Across Sharp-End Capillary Tubes I&EC Fundamentals 6 599 603 1967
- Reid , R.C. , Prausnitz , J.M. , and Poling , B.E. The Properties of Gases and Liquids McGraw Hill 1986
- Wilke , C.R. A Viscosity Equation for Gas Mixtures Journal of Chemical Physics 18 517 519 1950
- Tsilingiris , P.T. Energy Conversion and Management 1098 1110 2007
- Morvay , Z. and Gvozdena , D.D. Applied Industrial Energy and Environmental Management Hoboken, NJ Wiley 2008
- M. Conde Engineering Thermophysical Properties of Humid Air, Models and Background 2007 http://www.mrc-eng.com/Downloads/Moist%20Air%20Props%20English.pdf
- Brokaw , R.S. Predicting Transport Properties of Dilute Gases I & EC Process Design and Development 8 240 253 1969
- Studnikov , E.L. The Viscosity of Moist Air Journal of Engineering Physics 19 1036 1037 1970
- Kestin , J. and Whitelaw , J.H. The Viscosity of Dry and Humid Air International Journal of Heat and Mass Transfer 7 1245 1255 1964
- Fessler , T.E. WETAIR - A Computer Code for Calculating Thermodynamic and Transport Properties of Air-Water Mixtures NASA Technical Paper 1466 1979
- ASHRAE ASHRAE Handbook, Fundamentals ASHRAE Atlanta 2005
- Chung , T.-H. , Ajlan , M. , Lee , L.L. , and Starling , K.E. Generalized Multiparameter Correlation for Nonpolar and Polar Fluid Transport properties Industrial and Engineering Chemistry Research 27 671 679 1988
- E. W. Lemmon R. T. Jacobsen and Viscosity and Thermal Conductivity Equations for Nitrogen, Oxygen, Argon and Air International Journal of Thermophysics 25 1 21 69 2004
- Kadoya , K. , Matsunaga , N. , and Nagashima , A. Journal of Physical Chemistry 947 970 1985
- Y. S. P. R. W. H. C. Y. C. P. G. Touloukian Thermophysical Properties of Matter: The TPRC Data Series; a Comprehensive Compilation of Data New York Plenum 1970
- Sutherland , W. Philosophical Magazine 507 391 1893
- Rabinowicz , J. Aerodynamic Studies in the Shock Tube Pasadena, CA California Institute of Technology 1957
- McQuillan , F.J. , Culham , J.R. , and Yovanovich , M.M. Properties of Dry Air at One Atmosphere Waterloo, Ontario Microelectronics Heat Transfer Lab 1984
- E. A. Mason and L. Monchick Survey of the Equations of State and Transport Properties of Moist Gases, Humidity and Moisture -Measurement and Control in Science and Industry International Symposium Humidity and Moisture New York 1963
- Teske , V. , Vogel , E. , and Bich , E. Viscosity Measurements on Water Vapor and Their Evaluation Journal of Chemical Engineering Data 50 2082 2087 2005
- Kestin , J. and Richardson , P.D. The Viscosity of Superheated Steam up to 275 Deg C: A Refined Determination Journal of Heat Transfer 85 295 301 1963
- Mason , E.A. and Monchick , L. Humidity and Moisture - Measurement and Control in Science and Industry 3 1965
- D. Hochrainer and F. Munczak 1966
- US DoD 1997
- R. W. Hyland and A. Wexlar 1989
- S. P. a. S. R. Sutera The History of Poiseuille's Law Annual Review of Fluid Mechanics 25 1 20 1993
- L. C. Nelson and E. F. Obert Generalized PvT Properties of Gases Transaction of ASME 76 1057 1066 1954
- Brokaw , R.S. Viscosity of Gas Mixtures Cleveland NASA 1968