A Calorimetric Method for Determination of Heat Capacity of Ceramics for Concentrated Solar Thermal Systems

Latvian Journal of Physics and Technical Sciences 2013
Jānis Kalnačs, Valdis Grehovs, Gundars Mežinskis, Laimonis Bīdermanis

Differential scanning calorimetry was carried out to determine the heat capacity (Cp) of the high temperature resistant ceramic materials to be used as protective coatings for stainless steel tubes of parabolic trough solar collectors in concentrated solar power (CSP) systems. The Ср(Т) measurements and calculations were performed at continuous scanning in the temperature range 20-800 ºС. In the work, calibration curves have been derived for conversion of measuring units from mcV into mW. To achieve a better repeatability of measurements, methods for stabilization of the thermal contact between the sample-containing vessel and the probe have been developed. The Ср(Т) dependence was obtained for different ceramic materials.

Atslēgas vārdi
concentrated solar power (CSP) systems, ceramics, enamels, heat capacity, differential scanning calorimetry (DSC).
DOI
10.2478/lpts-2013-0034
Hipersaite
www.degruyter.com/dg/viewarticle.fullcontentlink:pdfeventlink/$002fj$002flpts.2013.50.issue-5$002flpts-2013-0034$002flpts-2013-0034.pdf?t:ac=j$002flpts.2013.50.issue-5$002flpts-2013-0034$002flpts-2013-0034.xml

Kalnačs, J., Grehovs, V., Mežinskis, G., Bīdermanis, L. A Calorimetric Method for Determination of Heat Capacity of Ceramics for Concentrated Solar Thermal Systems. Latvian Journal of Physics and Technical Sciences, 2013, Vol.50, Iss.5, 68.-73.lpp. ISSN 0868-8257. Pieejams: doi:10.2478/lpts-2013-0034

Publikācijas valoda
English (en)