Thermally activated wall panels with microencapsulated PCM: comparison of 1D and 3D models

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F19%3APU130179" target="_blank" >RIV/00216305:26210/19:PU130179 - isvavai.cz</a>

Result on the web

<a href="https://www.tandfonline.com/doi/full/10.1080/19401493.2018.1543350" target="_blank" >https://www.tandfonline.com/doi/full/10.1080/19401493.2018.1543350</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1080/19401493.2018.1543350" target="_blank" >10.1080/19401493.2018.1543350</a>

Result language

angličtina

Original language name

Thermally activated wall panels with microencapsulated PCM: comparison of 1D and 3D models

Original language description

The paper deals with the comparison of the one-dimensional (1D) and three-dimensional (3D) models of a thermally activated wall panel with a microencapsulated phase change material. The 3D model was created in the off-the-shelf simulation tool COMSOL Multiphysics. The 1D model was an in-house developed TRNSYS type. The main advantage of the 1D model is the short computation time but it comes at the expense of lower accuracy and less detailed results. In most building performance simulations, however, detailed knowledge of the temperature distribution over the surface of a wall is not important. For this reason, the results of both models were compared in terms of the mean surface temperature of the wall panels, the outlet water temperature, and the overall heating and cooling capacity of the panels. The two models provided very similar results for the practical range of water flow rates. The mass flow rate of water had a relatively small influence on the mean surface temperature and the heating and cooling capacity of the panels. For the one-tube mass flow rates of water between 0.25 and 2 g/s, the mean surface temperature was in the range of 28–29.5 C in the heating scenario and 21–21.5C in the cooling scenario, with the heating and cooling capacity ranges of 65 W/m2 to 75 W/m2 and 35 W/m2 to 40 W/m2, respectively.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20704 - Energy and fuels

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

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

Publication year

2019

Confidentiality

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

Name of the periodical

Journal of Building Performance Simulation

ISSN

1940-1493

e-ISSN

1940-1507

Volume of the periodical

12

Issue of the periodical within the volume

4

Country of publishing house

GB - UNITED KINGDOM

Number of pages

16

Pages from-to

404-419

UT code for WoS article

000463106300004

EID of the result in the Scopus database

2-s2.0-85057611456