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Title: Spectrophotometric studies of solutions at elevated temperatures and pressures: status and program for FY1961 and part of FY 1962

Abstract

A program was initiated on the spectrophotometric study of aqueous solution chemistry. The goal is operation at temperatures up to at least 330 deg C and at pressures up to 200 atm, and to near the critical point if this appears to be feasible. A spectrometer capable of operation under these extreme conditions is being designed. (W.L.H.)

Authors:
;
Publication Date:
Research Org.:
Oak Ridge National Lab., TN (United States)
Sponsoring Org.:
US Atomic Energy Commission (AEC)
OSTI Identifier:
4856809
Report Number(s):
CF-60-7-51
NSA Number:
NSA-14-022883
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
CHEMISTRY; CHEMICAL REACTIONS; HIGH TEMPERATURE; PHOTOMETRY; PLANNING; PRESSURE; SOLUTIONS; SPECTROMETERS; SPECTROSCOPY

Citation Formats

Biggers, R. E., and Chilton, J. M. Spectrophotometric studies of solutions at elevated temperatures and pressures: status and program for FY1961 and part of FY 1962. United States: N. p., 1960. Web. doi:10.2172/4856809.
Biggers, R. E., & Chilton, J. M. Spectrophotometric studies of solutions at elevated temperatures and pressures: status and program for FY1961 and part of FY 1962. United States. doi:10.2172/4856809.
Biggers, R. E., and Chilton, J. M. Tue . "Spectrophotometric studies of solutions at elevated temperatures and pressures: status and program for FY1961 and part of FY 1962". United States. doi:10.2172/4856809. https://www.osti.gov/servlets/purl/4856809.
@article{osti_4856809,
title = {Spectrophotometric studies of solutions at elevated temperatures and pressures: status and program for FY1961 and part of FY 1962},
author = {Biggers, R. E. and Chilton, J. M.},
abstractNote = {A program was initiated on the spectrophotometric study of aqueous solution chemistry. The goal is operation at temperatures up to at least 330 deg C and at pressures up to 200 atm, and to near the critical point if this appears to be feasible. A spectrometer capable of operation under these extreme conditions is being designed. (W.L.H.)},
doi = {10.2172/4856809},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jul 19 00:00:00 EDT 1960},
month = {Tue Jul 19 00:00:00 EDT 1960}
}

Technical Report:

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  • Twenty-four instrumented burnout points and one intentional physical burnout run are reported for a composite tubular geometry (inner heater tube M = 1.478 in. outer heater tube OD = 2.085 in., housing tube ID = 2.90 in. and heated length = 77 in.) with vertical upflow of boiling water at 1000 psia. The ranges of variables studied were: average mass velocities from 0.5 to 2.0 x 10/sup 6/ lb/ hr-ft/sup 2/, average exit conditions from 14 deg F subcooled to 29% steam quality and average instrumented burnout heat fluxes as high as 0.96 x 10/sup 6/ Btu/hr-ft/sup 2/. As inmore » previous burnout tests with the tubular geometry a very strong reverse mass velocity effect was observed in the data. Contrary to the expected performance in all cases burnout was reached first in the inner channel. At low total flow rates (less than about 50 GPM) and high heat fluxes (above approximately 600,000 Btu/hr-ft/sup 2/) a region of test section pressure fluctuations was abruptly encountered during several runs. The transition in and out of this region appeared to follow a line of zero average exit quality. (auth)« less
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  • Twenty-six instrumented burnout points were obtained using a solid tubular test section. This test section consists of a heater tube of 1.660 OD, 1.442 ID, 40 in. long, cooled on both surfaces and contained in a 2.50 in. ID outer housing tube. Variables studied include overall mass velocities at 0.5 to 2.3 x 10/sup 6/ lb/hr-ft/sup 2/, mixed fluid exit conditions between 42 deg F subcooled and 20% steam quality and average instrumented burnout heat fluxes as high as 1.3 x 10/sup 6/ Btu/hr-ft/sup 2/, all at a pressure of 1000 psia. The burnout data showed a very strong reversemore » mass velocity effect, i.e., for a constant exit quality raising the mass velocity resulted in a lower burnout heat flux. Flow measurements indicated that the percentage of the total flow going to the outer channel was a linearly decreasing function of the total flow rate near burnout. All the data were calculated on the basis of average and per channel conditions. (auth)« less
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