Publication detail
Thermal storage as a way to attenuate fluid temperature fluctuations - sensible vs. latent heat storage materials
CHARVÁT, P. KLIMEŠ, L. ŠTĚTINA, J. OSTRÝ, M.
Czech title
Thermal storage jako způsob tlumení teplotních fluktuací tekutiny - citelné vs. latentní heat storage materiály
English title
Thermal storage as a way to attenuate fluid temperature fluctuations - sensible vs. latent heat storage materials
Type
journal article in Web of Science
Language
en
Original abstract
A stable fluid temperature is quite important in many technical applications and thermal storage is one of the ways to attenuate fluid temperature fluctuations. Both sensible and latent heat storage materials can be used for this purpose. A theoretical study comprising numerical simulations was conducted in order to investigate the behavior of sensible and latent heat storage for attenuation of fluid temperature fluctuations. The studied case was a circular channel, through which the fluid flowed, surrounded by a thermal storage material. Two sensible heat storage materials (copper and concrete) and two latent heat storage materials (n-octadecane and calcium chloride hexahydrate) were considered in the performed study. Water was the fluid in all studied cases. The main goal of the investigations was to assess the thermal response of each variant under the same conditions. The length of the channel, the flow rate of water as well as the volume of the heat storage material were the same in all variants.
Czech abstract
Udržení stabilní teploty tekutiny je důležité v mnoha technických aplikacích a thermal storege je jedním ze způsobů, jak tlumit fluktuace teploty proudící tekutiny. Pro tento účel mohou být využity materiály bez a s fázovými změnami (citelné vs. latentní teplo). Byla provedena teoretická studie pomocí numerických simulací. Jejím cílem bylo studium systémů využívajících materiály bez a se změnou fáze pro aplikace vyžadující tlumení teplotních fluktuací tekutiny. Studie byla provedena pro kruhový kanál, kterým protékala tekutina a který byl obklopen heat storage materiálem. Dva materiály beze změny fáze (beton a měď), tj. využívající citelné teplo, a dva materiály s fázovou přeměnou (n-oktadekan a hexahydrát CaCl) byly uvažovány. Protékající tekutinou byla voda. Hlavním cílem stude bylo stanovit tepelnou odezvu a tlumící charakteristiku pro uvažované materiály za totožných podmínek.
English abstract
A stable fluid temperature is quite important in many technical applications and thermal storage is one of the ways to attenuate fluid temperature fluctuations. Both sensible and latent heat storage materials can be used for this purpose. A theoretical study comprising numerical simulations was conducted in order to investigate the behavior of sensible and latent heat storage for attenuation of fluid temperature fluctuations. The studied case was a circular channel, through which the fluid flowed, surrounded by a thermal storage material. Two sensible heat storage materials (copper and concrete) and two latent heat storage materials (n-octadecane and calcium chloride hexahydrate) were considered in the performed study. Water was the fluid in all studied cases. The main goal of the investigations was to assess the thermal response of each variant under the same conditions. The length of the channel, the flow rate of water as well as the volume of the heat storage material were the same in all variants.
Keywords in Czech
stabilita teploty, thermal storage, materiály se změnou skupenství
Keywords in English
temperature stability, thermal storage, phase change materials
RIV year
2014
Released
15.05.2014
Publisher
Insitute of Metals and Technology
Location
Ljubljana, Slovinsko
ISSN
1580-2949
Volume
48
Number
3
Pages from–to
423–427
Pages count
5
BIBTEX
@article{BUT101822,
author="Pavel {Charvát} and Lubomír {Klimeš} and Josef {Štětina} and Milan {Ostrý},
title="Thermal storage as a way to attenuate fluid temperature fluctuations – sensible vs. latent heat storage materials",
year="2014",
volume="48",
number="3",
month="May",
pages="423--427",
publisher="Insitute of Metals and Technology",
address="Ljubljana, Slovinsko",
issn="1580-2949"
}