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RESEARCH PAPERS: Radiative Heat Transfer

Medium Resolution Transmission Measurements of Water Vapor at High Temperature

[+] Author and Article Information
Sudarshan P. Bharadwaj, Robert J. Riazzi

Department of Mechanical and Nuclear Engineering, The Pennsylvania State University, University Park, PA 16802

Michael F. Modest1

Department of Mechanical and Nuclear Engineering, The Pennsylvania State University, University Park, PA 16802mfmodest@psu.edu

1

Author to whom all correspondence should be addressed.

J. Heat Transfer 128(4), 374-381 (Oct 21, 2005) (8 pages) doi:10.1115/1.2165209 History: Received April 29, 2005; Revised October 21, 2005

Medium-resolution transmissivities of water vapor were measured at temperatures between 600 and 1550 K for all-important vibration-rotation bands as well as part of the purely rotational band. Measurements were made with an improved drop tube design, which ensures a relatively isothermal high-temperature gas column. Data were collected with a Fourier-transform-infrared-spectrometer, allowing for much better spectral resolution than most previous high-temperature measurements. The measured data were compared to the HITEMP database, as well as with the data of Phillips for the 2.7μm band of H2O. The data show minor discrepancies with the high-resolution database, particularly at higher temperatures, but, in general, agreement is acceptable.

Copyright © 2006 by American Society of Mechanical Engineers
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Figures

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Figure 1

Experimental setup (not to scale)

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Figure 2

Relative and absolute uncertainties in τ¯

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Figure 3

Comparison of experimental data with HITEMP (1000K, rotational band of H2O)

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Figure 4

Comparison of experimental data with HITEMP (1550K, rotational band of H2O)

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Figure 5

Comparison of experimental data with HITEMP (600K, 6.3μm band of H2O)

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Figure 6

Comparison of experimental data with HITEMP (1000K, 6.3μm band of H2O)

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Figure 7

Comparison of experimental data with HITEMP (1550K, 6.3μm band of H2O)

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Figure 8

Comparison of experimental data with HITEMP (600K, 2.7μm band of H2O)

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Figure 9

Comparison of experimental data with HITEMP (1000K, 2.7μm band of H2O)

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Figure 10

Comparison of experimental data with HITEMP (1550K, 2.7μm band of H2O)

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Figure 11

Comparison of experimental data with HITEMP (600K, 1.8μm band of H2O)

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Figure 12

Comparison of experimental data with HITEMP (1000K, 1.8μm band of H2O)

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Figure 13

Comparison of experimental data with HITEMP (1550K, 1.8μm band of H2O)

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Figure 14

Comparison of experimental data with HITEMP and Phillips (600K, 2.7μm band of H2O)

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Figure 15

Comparison of experimental data with HITEMP and Phillips (1000K, 2.7μm band of H2O)

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