Modification of the DRTA Probes Geometry for an Environment with a High Proportion of the Radiant Heat Flux

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F22%3A00354579" target="_blank" >RIV/68407700:21220/22:00354579 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.tsep.2022.101199" target="_blank" >https://doi.org/10.1016/j.tsep.2022.101199</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.tsep.2022.101199" target="_blank" >10.1016/j.tsep.2022.101199</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Modification of the DRTA Probes Geometry for an Environment with a High Proportion of the Radiant Heat Flux

Popis výsledku v původním jazyce

The Recovery Temperature Anemometry (RTA) is a method for determining the flow field velocity of a compressible fluid by measuring temperatures, in which the temperature rendered by temperature probes positioned within an airflow is determined by the thermodynamic temperature, the external flow velocity, the fluid's specific heat, and the probe's recovery factor. There is one drawback to employing a single temperature probe in the RTA approach. Even if the probe's recovery factor and isobaric heat capacity are known, the external flow velocity for the evaluation of the thermodynamic temperature or the thermodynamic temperature for the evaluation of the flow velocity must be known as well. The Double Probe Recovery Temperature Anemometry (DRTA) method, which uses two or more temperature probes with different recovery factors, has overcome this problem. The geometry of a previously proposed DRTA probe, which was originally sensitive to ambient heat radiation, was improved in this research. The qualities were improved by using a shield for both temperature sensors while maintaining their separate recovery factors. The alteration of the geometry of the original probe and experimental verification of its parameters are described in this paper.

Název v anglickém jazyce

Modification of the DRTA Probes Geometry for an Environment with a High Proportion of the Radiant Heat Flux

Popis výsledku anglicky

The Recovery Temperature Anemometry (RTA) is a method for determining the flow field velocity of a compressible fluid by measuring temperatures, in which the temperature rendered by temperature probes positioned within an airflow is determined by the thermodynamic temperature, the external flow velocity, the fluid's specific heat, and the probe's recovery factor. There is one drawback to employing a single temperature probe in the RTA approach. Even if the probe's recovery factor and isobaric heat capacity are known, the external flow velocity for the evaluation of the thermodynamic temperature or the thermodynamic temperature for the evaluation of the flow velocity must be known as well. The Double Probe Recovery Temperature Anemometry (DRTA) method, which uses two or more temperature probes with different recovery factors, has overcome this problem. The geometry of a previously proposed DRTA probe, which was originally sensitive to ambient heat radiation, was improved in this research. The qualities were improved by using a shield for both temperature sensors while maintaining their separate recovery factors. The alteration of the geometry of the original probe and experimental verification of its parameters are described in this paper.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20303 - Thermodynamics

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Thermal Science and Engineering Progress

ISSN

2451-9049

e-ISSN

2451-9049

Svazek periodika

22

Číslo periodika v rámci svazku

03

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

20

Strana od-do

—

Kód UT WoS článku

000788023300004

EID výsledku v databázi Scopus

2-s2.0-85122828675