Determination of the true temperature of emitted radiation bodies from generalized Wien's displacement law

Fisenko, Anatoliy I.; Ivashov, Sergey N.

doi:10.1088/0022-3727/32/22/309

Cited by 31 publications

(22 citation statements)

References 9 publications

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“…It has been shown that the thermal continuum radiation of zirconium, titanium, and hafnium carbides has a similar relationship between T and ν max . This means that they belong to the same universality class of bodies as studied in [16][17][18][19][20].…”

Section: Discussionmentioning

confidence: 89%

“…In [16][17][18][19][20], an optical non-contact method for determining the true temperature of bodies has been proposed. A principal idea was to use experimental data of the normal spectral emissivity as a function of temperature to construct the generalized Wien displacement and Stefan-Boltzmann laws.…”

Section: Introductionmentioning

confidence: 99%

“…This study focuses on further development of a non-contact optical method for determining the true temperature as well as for the construction of the thermodynamic functions of the thermal radiation of bodies that was previously proposed in [16][17][18][19][20]. In the framework of the examples, the generalized Wien displacement and Stefan-Boltzmann laws are investigated for stoichiometric hafnium, titanium, and zirconium carbides.…”

Section: Introductionmentioning

confidence: 99%

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Radiative Properties of Stoichiometric Hafnium, Titanium, and Zirconium Carbides: Thermodynamics of Thermal Radiation

Fisenko¹,

Lemberg²

2012

Int J Thermophys

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The true temperatures of the thermal radiation of stoichiometric hafnium, titanium, and zirconium carbides are defined from the generalized Wien displacement law. It is shown that Wien's displacement law for the investigated stoichiometric carbides decreases linearly with increasing temperature. The uncertainties in the determination of the true temperature are no greater than 1 %. For determining the true temperature of stoichiometric carbides, the experimental values of the position of the maximum of the spectral density power are needed. By extrapolating the generalized Wien displacement laws in the ultra-high-temperature region, the positions of the maximum of the normal energy density of hafnium, titanium, and zirconium carbides at melting temperatures are obtained. Thermodynamics of thermal radiation of stoichiometric carbides is constructed by using the temperature dependences of the generalized Stefan-Boltzmann law. The calculated values of the normal total emissivity for the investigated carbides at different temperatures are in good agreement with experimental data. For determining the true temperatures of the thermal radiation of stoichiometric carbides, experimental values of either the normal total emissivity or the normal total energy density are needed. The temperature dependences of the Helmholtz free energy, entropy, heat capacity at constant volume, pressure, enthalpy, and internal energy of the thermal radiation of stoichiometric carbides at high temperature are obtained. It is shown that thermodynamic function values increase with increasing temperature as a power law.Keywords Enthalpy · Entropy · Generalized Wien's displacement and Stefan-Boltzmann's laws · Heat capacity · Helmholtz free energy · A. I. Fisenko (B) · V. Lemberg

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Section: Discussionmentioning

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Radiative Properties of Stoichiometric Hafnium, Titanium, and Zirconium Carbides: Thermodynamics of Thermal Radiation

Fisenko¹,

Lemberg²

2012

Int J Thermophys

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“…In [17][18][19][20], an optical non-contact method for determining the true temperature of bodies was proposed. The performance of this method was demonstrated on the thermal radiation of tantalum, tungsten, and zirconium and titanium carbides, and luminous flames.…”

Section: Introductionmentioning

confidence: 99%

“…The uncertainty in the determination of the steady-state temperature does not fall below 3 % in these cases. It was noted that the emitted thermal radiation of carbides, tungsten, and tantalum, belongs to the same universality class [19]. The emitted thermal radiation of luminous flames belongs to the same universality class as a blackbody [19].…”

Section: Introductionmentioning

confidence: 99%

Determination of the True Temperature of Molybdenum and Luminous Flames from Generalized Wien’s Displacement and Stefan–Boltzmann’s Laws: Thermodynamics of Thermal Radiation

Fisenko¹,

Ivashov

2009

Int J Thermophys

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The true temperature of thermal radiation of molybdenum and luminous flames is defined from the temperature dependences of generalized Wien's displacement and Stefan-Boltzmann's laws. For determining the true temperature of molybdenum, experimental values of either the position of the maximum of the spectral emitted density or the total emitted density are needed. It is shown that the thermal radiation of molybdenum belongs to the same universality class as that of tantalum, tungsten, and zirconium and titanium carbides. The thermodynamic functions of thermal radiation of molybdenum and luminous flames are constructed.

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Combustion Control Experimentations at a Pilot Scale Glass Furnace

Keyvan

Rossow

Vélez

et al. 2006

Ceramic Transactions Series

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Determination of the true temperature of emitted radiation bodies from generalized Wien's displacement law

Cited by 31 publications

References 9 publications

Radiative Properties of Stoichiometric Hafnium, Titanium, and Zirconium Carbides: Thermodynamics of Thermal Radiation

Radiative Properties of Stoichiometric Hafnium, Titanium, and Zirconium Carbides: Thermodynamics of Thermal Radiation

Determination of the True Temperature of Molybdenum and Luminous Flames from Generalized Wien’s Displacement and Stefan–Boltzmann’s Laws: Thermodynamics of Thermal Radiation

Combustion Control Experimentations at a Pilot Scale Glass Furnace

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