Design Guideline for New Generation of High-Temperature Guarded Hot Plate

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00177016%3A_____%2F18%3AN0000059" target="_blank" >RIV/00177016:_____/18:N0000059 - isvavai.cz</a>
Result on the web
<a href="https://link.springer.com/article/10.1007%2Fs10765-017-2344-1" target="_blank" >https://link.springer.com/article/10.1007%2Fs10765-017-2344-1</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s10765-017-2344-1" target="_blank" >10.1007/s10765-017-2344-1</a>

Result language
angličtina
Original language name
Design Guideline for New Generation of High-Temperature Guarded Hot Plate
Original language description
This paper complements the existing measurement standards and literature for high-temperature guarded hot plates (HTGHPs) by addressing specific issues relating to thermal conductivity measurement of technical insulation at high temperatures. The examples given are focused on the designs of HTGHPs for measuring thin thermal insulation. The sensitivity studies have been carried out on major influencing factors that affect the thermal conductivity measurements using HTGHPs, e.g., the uncertainty of temperature measurements, plate flatness and center-guard gap design and imbalance. A new configuration of center-guard gap with triangular shape cross section has been optimized to obtain the same thermal resistance as a 2 mm wide gap with rectangular shape cross section that has been used in the HTGHPs at NPL and LNE. Recommendations have been made on the selections of heater plate materials, high-temperature high-emissivity coatings and miniature temperature sensors. For the first time, thermal stress analysis method has been applied to the field of HTGHPs, in order to estimate the effect of differential thermal expansion on the flatness of thin rigid specimens during thermal conductivity tests in a GHP.
Czech name
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Czech description
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Type
J<sub>SC</sub> - Article in a specialist periodical, which is included in the SCOPUS database
CEP classification
—
OECD FORD branch
21100 - Other engineering and technologies

Project
<a href="/en/project/7AX13026" target="_blank" >7AX13026: Metrology for thermal protection materials</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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