2022
DOI: 10.1088/1361-6501/acaa4b
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Phosphor thermometry in heat transfer fluids and liquid organic hydrogen carrier systems using (Sr,Ca)SiAlN3:Eu2+

Abstract: Temperature control in heat exchangers in reacting and non-reacting flows is of great importance for process optimization. In this context, phosphor thermometry is a promising technique for remote planar temperature sensing. The thermometry technique is based on exciting a luminescent material by a laser pulse and analysing the subsequent phosphorescence signal. A particular interesting application is chemical hydrogen storage using liquid organic hydrogen carrier (LOHC) systems. The knowledge of temperature f… Show more

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Cited by 3 publications
(4 citation statements)
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“…By a tracer dissolved in a liquid [6] or by the liquid itself. Here aromatic components, which are present in lubricants or fuels, commonly absorb in the UV-region [7,8]. The LIF signal depends on various factors.…”
Section: Introductionmentioning
confidence: 99%
See 1 more Smart Citation
“…By a tracer dissolved in a liquid [6] or by the liquid itself. Here aromatic components, which are present in lubricants or fuels, commonly absorb in the UV-region [7,8]. The LIF signal depends on various factors.…”
Section: Introductionmentioning
confidence: 99%
“…The temperature sensitivity mainly depends on the tracer itself and the polarity of the solvent. In principle, laser-induced phosphorescence could be applicable for liquid and two-phase thermometry as well, but in this case the seeding of particles to the liquid is challenging and particle agglomeration may occur, which may introduce large errors [8,9].…”
Section: Introductionmentioning
confidence: 99%
“…A fluorescence signal can be created in two ways: using a so-called "tracer" dissolved in a liquid [21] or using the liquid itself (e.g., the aromatic components in lubricants or fuels) [22][23][24]. The fluorescence signal is governed by the spectral properties (absorption and emission) of the tracer and many more properties (such as the solvent, temperature, utilized illumination source (e.g., a laser, LED, and the respective excitation wavelength), bandwidth, and irradiation).…”
Section: Introductionmentioning
confidence: 99%
“…The temperature sensitivity is mainly governed by the tracer itself and the polarity of the solvent. Laser-induced phosphorescence (LIP) could also be applicable for liquid and two-phase thermometry, but the seeding of particles into the liquid is very challenging, and particle agglomeration may occur, which may lead to large measurement errors [23,25].…”
Section: Introductionmentioning
confidence: 99%