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A new technique for measuring gas conversion factors for hydrocarbon mass flowmetersA technique for measuring calibration conversion factors for hydrocarbon mass flowmeters was developed. It was applied to a widely used type of commercial thermal mass flowmeter for hydrocarbon gases. The values of conversion factors for two common hydrocarbons measured using this technique are in good agreement with the empirical values cited by the manufacturer. Similar agreements can be expected for all other hydrocarbons. The technique is based on Nernst theorem for matching the partial pressure of oxygen in the combustion product gases with that in normal air. It is simple, quick and relatively safe--particularly for toxic/poisonous hydrocarbons.
Document ID
19830024856
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Singh, J. J. (NASA Langley Research Center Hampton, VA, United States)
Sprinkle, D. R. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
September 4, 2013
Publication Date
August 1, 1983
Subject Category
Instrumentation And Photography
Report/Patent Number
NAS 1.15:85676
NASA-TM-85676
Accession Number
83N33127
Funding Number(s)
PROJECT: RTOP 505-33-53-14
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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