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Title: Discharging Through an Orifice Determines Steam-Water Enthalpy

Abstract

A wide range of steam-water mixtures was discharged to the atmosphere through a 10.7 mm diameter orifice which was sharp-edged with a minuscule throat pressure tapping. The ratio of throat pressure to up-stream pressure was found sensitive to dryness fraction over the whole range studied from 0.03 to 1.0. The technique (employing large orifices) has the potential of identifying the unknown enthalpy of geothermal wells discharging large flows. Contrariwise, a nozzle (rounded entry orifice) was found remarkably _insensitive_ over most of the dryness range and hence is useless for such determinations; however, it can be used to measure the flow-rate when enthalpy is known. 2 figs., 7 refs.

Authors:
Publication Date:
Research Org.:
D.S.I.R., Wairakei, New Zealand
Sponsoring Org.:
USDOE
OSTI Identifier:
888642
Report Number(s):
SGP-TR-109-44
DOE Contract Number:  
AT03-80SF11459; AS07-84ID12529
Resource Type:
Conference
Resource Relation:
Conference: Proceedings, Twelfth Workshop on Geothermal Reservoir Engineering, Stanford University, Stanford, Calif., January 20-22, 1987
Country of Publication:
United States
Language:
English
Subject:
Geothermal Legacy

Citation Formats

James, Russell. Discharging Through an Orifice Determines Steam-Water Enthalpy. United States: N. p., 1987. Web.
James, Russell. Discharging Through an Orifice Determines Steam-Water Enthalpy. United States.
James, Russell. 1987. "Discharging Through an Orifice Determines Steam-Water Enthalpy". United States. https://www.osti.gov/servlets/purl/888642.
@article{osti_888642,
title = {Discharging Through an Orifice Determines Steam-Water Enthalpy},
author = {James, Russell},
abstractNote = {A wide range of steam-water mixtures was discharged to the atmosphere through a 10.7 mm diameter orifice which was sharp-edged with a minuscule throat pressure tapping. The ratio of throat pressure to up-stream pressure was found sensitive to dryness fraction over the whole range studied from 0.03 to 1.0. The technique (employing large orifices) has the potential of identifying the unknown enthalpy of geothermal wells discharging large flows. Contrariwise, a nozzle (rounded entry orifice) was found remarkably _insensitive_ over most of the dryness range and hence is useless for such determinations; however, it can be used to measure the flow-rate when enthalpy is known. 2 figs., 7 refs.},
doi = {},
url = {https://www.osti.gov/biblio/888642}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 20 00:00:00 EST 1987},
month = {Tue Jan 20 00:00:00 EST 1987}
}

Conference:
Other availability
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