scholarly journals Medium Resolution Transmission Measurements of Water Vapor at High Temperature

2005 ◽  
Author(s):  
Sudarshan P. Bharadwaj ◽  
Michael F. Modest ◽  
Robert J. Riazzi
Keyword(s):  
Water Vapor ◽  
High Temperature ◽  
High Resolution ◽  
Measured Data ◽  
Drop Tube ◽  
Medium Resolution ◽  
Ftir Spectrometer ◽  
Transmission Measurements ◽  
Vibration Rotation ◽  
High Temperature Gas

Medium resolution transmissivities of water vapor were measured at temperatures between 600 K 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 guarantees a truly isothermal high-temperature gas column. Data were collected with an FTIR-spectrometer, allowing for much better spectral resolution than most previous high-temperature measurements. The measured data were compared with the HITEMP database, as well as with the data of Phillips for the 2.7 μm band of H2O. The data show minor discrepancies with the high-resolution database, particularly at higher temperatures, but in general agreement is acceptable.

scholarly journals Medium Resolution Transmission Measurements of Water Vapor at High Temperature

2005 ◽  
Vol 128 (4) ◽  
pp. 374-381 ◽  
Author(s):  
Sudarshan P. Bharadwaj ◽  
Michael F. Modest ◽  
Robert J. Riazzi
Keyword(s):  
Fourier Transform ◽  
Water Vapor ◽  
High Temperature ◽  
Measured Data ◽  
Drop Tube ◽  
Medium Resolution ◽  
Infrared Spectrometer ◽  
Transmission Measurements ◽  
Vibration Rotation ◽  
High Temperature Gas

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.

Improved Spectroscopic Constants for 14C16O2 Obtained from the ν3 Band

1989 ◽  
Vol 44 (7) ◽  
pp. 633-639 ◽  
Author(s):  
S. Dobos ◽  
G . Winnewisser ◽  
F. Kling ◽  
J. Mink
Keyword(s):  
High Resolution ◽  
Diode Laser ◽  
Spectral Region ◽  
Tunable Diode Laser ◽  
Spectroscopic Constants ◽  
Laser Spectrometer ◽  
Diode Laser Spectrometer ◽  
Medium Resolution ◽  
Carrier Free ◽  
Ftir Spectrometer

The absorption spectra of carrier free 14C16O2 in the spectral range of 2290-2150 cm−1 by a medium resolution FTIR spectrometer, and the spectral region of 2258 − 2229 cm−1 with a high resolution tunable diode laser spectrometer have been recorded. Spectroscopic constants were calculated from the 0001 − 0000 and 0111 −0110 transitions.

Systematic Study of High Molecular Weight Compounds in Amazonian Plants by High Temperature Gas Chromatography-Mass Spectrometry

2000 ◽  
Vol 55 (3-4) ◽  
pp. 175-179 ◽  
Author(s):  
Denilson Soares de Siqueira ◽  
Alberto dos Santos Pereira ◽  
José Augusto Cabralb ◽  
Carlos Alberto Cid Ferreirab ◽  
Francisco Radler de Aquino Neto
Keyword(s):  
Mass Spectrometry ◽  
Molecular Weight ◽  
Gas Chromatography ◽  
High Temperature ◽  
High Resolution ◽  
High Molecular Weight ◽  
Systematic Study ◽  
Gas Chromatography Mass Spectrometry ◽  
High Resolution Gas Chromatography ◽  
High Temperature Gas

Abstract The fractions of hexane and dichloromethane extraction from marupá (Simaruba amara) and (Bertholletia excelsa) leaves were analyzed by HT-HRGC (high temperature high resolution gas chromatography) and HT-HRGC coupled to mass spectrometry (HT-HRGC-MS). Several compounds can be characterized including unusual high molecular weight com pounds.

Progress of the HTR-10 Measured Data Utilization

2014 ◽  
Author(s):  
Fubing Chen ◽  
Yujie Dong ◽  
Yanhua Zheng ◽  
Lei Shi ◽  
Fu Li ◽  
...  
Keyword(s):  
High Temperature ◽  
Measured Data ◽  
Inherent Safety ◽  
Data Utilization ◽  
Existing Problems ◽  
New Energy ◽  
Full Power ◽  
Power Operation ◽  
Safety Features ◽  
High Temperature Gas

The 10 MW High Temperature Gas-cooled Reactor-Test Module (HTR-10), which was designed, constructed and operated by the Institute of Nuclear and New Energy Technology (INET) of Tsinghua University, is the first High Temperature Gas-cooled Reactor (HTGR) in China. Stepping into the commissioning phase in April, 2000, the HTR-10 attained the first criticality in December, 2000 and achieved its full power operation in January, 2003. Up to now, the HTR-10 has been successfully operated for more than ten years with different power levels. During the relatively long period of commissioning and operation, various kinds of tests were carried out on this reactor. Within the scope of this paper, the commissioning stage, the operation history and the test implementation of the HTR-10 are briefly summarized. At this stage, the HTR-10 is the only pebble bed HTGR under operation in the world, so the measured data from this reactor are extremely valuable for verifying the inherent safety features incorporated in small modular HTGRs as well as for testing the computer programs employed in the HTGR design process. With the purpose of ensuring the code credibility, validation work using the HTR-10 operation and test data has been performed for several years in INET. What is more, these data were partly shared with different countries through some collaborative research projects related to code development and assessment. In this paper, progress of the HTR-10 measured data utilization is reviewed. Meanwhile, existing problems observed from the code-to-test as well as code-to-code comparisons are pointed out. In addition, possible reasons of such problems are discussed in detail.

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