Analyses of phase change materials’ efficiency in warm-summer humid continental climate conditions

View/ Open
Issue date
2017Author
Ratnieks, J.
Gendelis, S.
Jakovics, A.
Bajare, Diana
Suggested citation
Ratnieks, J.;
Gendelis, S.;
Jakovics, A.;
Bajare, Diana;
.
(2017)
.
Analyses of phase change materials’ efficiency in warm-summer humid continental climate conditions.
IOP Conference Series: Materials Science and Engineering, 2017, vol. 251, p. 012119 (9 pp.).
https://doi.org/10.1088/1757-899X/251/1/012119.
Metadata
Show full item recordAbstract
The usage of phase change materials (PCMs) is a way to store excess energy pro-
duced during the hot time of the day and release it during the night thereby reducing the
overheating problem. While, in Latvian climate conditions overheating is not a big issue in
traditional buildings since it happens only a couple of weeks per year air conditioners must still
be installed to maintain thermal comfort. The need for cooling in recently built office buildings
with large window area can increase signi cantly. It is therefore of great interest if the ther-
mal comfort conditions can be maintained by PCMs alone or with reduced maximum power of
installed cooling systems. Our initial studies show that if the test building is well-insulated (nec-
essary to reduce heat loss in winter), phase change material is not able to solidify fast enough
during the relatively short night time. To further investigate the problem various experimental
setups with two different phase change materials were installed in test buildings. Experimental
results are compared with numerical modelling made in software COMSOL Multiphysics. The
effectiveness of PCM using different situations is widely analysed.
Is part of
IOP Conference Series: Materials Science and Engineering, 2017, vol. 251, p. 012119 (9 pp.)European research projects
Collections
The following license files are associated with this item: