Study of the heater plate flatness affecting the thermal conductivity measurement using guarded hot plate technique

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00177016%3A_____%2F15%3A%230001176" target="_blank" >RIV/00177016:_____/15:#0001176 - isvavai.cz</a>

Výsledek na webu

<a href="http://thermosymposium.nist.gov/programSummary.html" target="_blank" >http://thermosymposium.nist.gov/programSummary.html</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Study of the heater plate flatness affecting the thermal conductivity measurement using guarded hot plate technique

Popis výsledku v původním jazyce

Guarded hot plate (GHP) method widely used to the thermal conductivity measurement of insulating materials is introduced and tested at CMI (Czech Metrology Institute) within the project of the European Metrology Research Programme SIB52 Thermo. The material (specimen) is inserted between two heater plates. The temperature difference of a hot and a cold plate as well as the knowledge of the heat flow through the specimen and a thickness of the specimen enable to calculate the value of the specimen thermal conductivity according to Fourier´s law. However, several problems have to be solved to ensure the heat flow through the specimen is unidirectional and perpendicular to the heater plates. As the title of GHP suggests, the central part of hot plate withdesired temperature and input heater power is surrounded by the guard plate to protect unidirectional flow in the central part of specimen. As regards the measurement of thermal conductivity of solid materials, one of the important desig

Název v anglickém jazyce

Study of the heater plate flatness affecting the thermal conductivity measurement using guarded hot plate technique

Popis výsledku anglicky

Guarded hot plate (GHP) method widely used to the thermal conductivity measurement of insulating materials is introduced and tested at CMI (Czech Metrology Institute) within the project of the European Metrology Research Programme SIB52 Thermo. The material (specimen) is inserted between two heater plates. The temperature difference of a hot and a cold plate as well as the knowledge of the heat flow through the specimen and a thickness of the specimen enable to calculate the value of the specimen thermal conductivity according to Fourier´s law. However, several problems have to be solved to ensure the heat flow through the specimen is unidirectional and perpendicular to the heater plates. As the title of GHP suggests, the central part of hot plate withdesired temperature and input heater power is surrounded by the guard plate to protect unidirectional flow in the central part of specimen. As regards the measurement of thermal conductivity of solid materials, one of the important desig

Druh

O - Ostatní výsledky

CEP obor

JB - Senzory, čidla, měření a regulace

OECD FORD obor

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Projekt

<a href="/cs/project/7AX13026" target="_blank" >7AX13026: Metrology for thermal protection materials</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2015

Kód důvěrnosti údajů

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