Počet záznamů: 1

Cryogenic apparatus for study of near-field heat transfer

SYSNO ASEP	0368238
Druh ASEP	J - Článek v odborném periodiku
Zařazení RIV	J - Článek v odborném periodiku
Poddruh J	Článek ve WOS
Název	Cryogenic apparatus for study of near-field heat transfer
Tvůrce(i)	Králík, Tomáš (UPT-D)_{RID, ORCID, SAI} Hanzelka, Pavel (UPT-D)_{RID, ORCID, SAI} Musilová, Věra (UPT-D)_{RID, SAI, ORCID} Srnka, Aleš (UPT-D)_{RID, ORCID, SAI} Zobač, Martin (UPT-D)_{RID, ORCID}
Celkový počet autorů	5
Zdroj.dok.	Review of Scientific Instruments. - : AIP Publishing - ISSN 0034-6748 Roč. 82, č. 5 (2011), 055106:1-5
Poč.str.	5 s.
Jazyk dok.	eng - angličtina
Země vyd.	US - Spojené státy americké
Klíč. slova	cryogenics ; heat measurement ; heat radiation ; micrometry ; radiative transfer ; thermistors
Vědní obor RIV	BJ - Termodynamika
CEP	IAA100650804 GA AV ČR - Akademie věd
CEZ	AV0Z20650511 - UPT-D (2005-2011)
UT WOS	000291106700052
EID SCOPUS	79958053941
DOI	10.1063/1.3585985
Anotace	For bodies spaced in vacuum at distances shorter than the wavelength of the thermal radiation, radiative heat transfer substantially increases due to the contribution of evanescent electromagnetic waves. Experimental data on heat transfer in near-field regime are scarce. We have designed a cryogenic apparatus for the study of heat transfer over microscopic distances between metallic and non-metallic surfaces. Using a mechanical positioning system, a planeparallel gap between the samples, concentric disks, each 35 mm in diameter, is set and varied from 10(0) to 10(3) mu m. The heat transferred from the hot (10 - 100 K) to the cold sample (similar to 5 K) sinks into a liquid helium bath through a thermal resistor, serving as a heat flux meter. Transferred heat power within similar to 2 nW/cm(2) and similar to 30 mu W/cm(2) is derived from the temperature drop along the thermal resistor.
Pracoviště	Ústav přístrojové techniky
Kontakt	Martina Šillerová, sillerova@ISIBrno.Cz, Tel.: 541 514 178
Rok sběru	2012

Počet záznamů: 1