ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Compared to conventional single-phase fluids, the latent functionally thermal fluid (LFTF),with phase change particles of μm magnitude in size dispersed in it, shows much greater apparentspecific heat and heat transfer rate between the fluid and the duct wall. Therefore, for given heattransportation quantity, the mass flow rate and the pump consumption can be reduced greatly. Due tothese, LFTF is a promising material in the fields of heat exchanging. In this paper, phase changematerial (n-tetradecane) was encapsulated by polymethyl mathacrylate (PMMA), polystyrene (PS)and blend of them by internal phase separation method to form microcapsule of 1~2μm in size. Thechemical structures were demonstrated by using Fourier transform infrared spectroscopy (FTIR). Thecore-shell structure was observed using phase contrast microscope. Differential scanning calometry(DSC) results indicated that the phase change enthalpy of the containing 75wt% n-tetradecane as corematerial reaches 150.7 J/g
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/18/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.561-565.2293.pdf
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