Feasibility research of using phase change materials to reduce the inner temperature rise of mass concrete

2015 ◽  
Vol 30 (5) ◽  
pp. 989-994 ◽  
Author(s):  
Chunxiang Qian ◽  
Guibo Gao ◽  
Zhihai He ◽  
Ruiyang Li
Keyword(s):  
Phase Change ◽  
Temperature Rise ◽  
Phase Change Materials ◽  
Mass Concrete ◽  
Feasibility Research

scholarly journals Feasibility of Using Phase Change Materials to Control the Heat of Hydration in Massive Concrete Structures

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Won-Chang Choi ◽  
Bae-Soo Khil ◽  
Young-Seok Chae ◽  
Qi-Bo Liang ◽  
Hyun-Do Yun
Keyword(s):  
Phase Change ◽  
Latent Heat ◽  
Phase Change Materials ◽  
Cement Mortar ◽  
Concrete Structures ◽  
Experimental Tests ◽  
Heat Of Hydration ◽  
Hydration Heat ◽  
Experimental Results ◽  
Mass Concrete

This paper presents experimental results that can be applied to select a possible phase change material (PCM), such as a latent heat material (LHM), to control the hydration heat in mass concrete structures. Five experimental tests (microconduction, simplified adiabatic temperature rise, heat, and compressive strength tests) were conducted to select the most desirable LHM out of seven types of inorganic PCM used in cement mortar and to determine the most suitable mix design. The results of these experimental tests were used to assess the feasibility of using PCM to reduce hydration heat in mass concrete that was examined. The experimental results show that cement mortar containing barium- [Ba(OH)2·8H2O] based PCM has the lowest amount of total hydration heat of the cement pastes. The barium-based PCM provides good latent heat properties that help to prevent volume change and microcracks caused by thermal stress in mass concrete.

Application of a Thermal Network Method to Thermal Analysis of Electronic Devices Using Phase Change Materials

2009 ◽  
Author(s):  
Sadakazu Takakuwa ◽  
Masaru Ishizuka ◽  
Shinji Nakagawa ◽  
Kanji Takagi
Keyword(s):  
Phase Change ◽  
Temperature Rise ◽  
Phase Change Materials ◽  
Heat Dissipation ◽  
Design Parameters ◽  
Transient Temperature ◽  
Thermal Network ◽  
Network Method ◽  
Pin Fins ◽  
Thermal Network Method

This paper describes transient cooling technology for electronic equipment using Phase Change Materials (PCMs) and a heat sink with pin fins. We designed an electronic module including paraffin as the PCM and measured its transient temperature rise. The effects of the diameter of pin fins and heat dissipation values were investigated as design parameters. The results show that the temperature rise values were controlled by the thermal absorption effect due to the latent heat of the PCM. It is also confirmed that the proposed thermal network method with an equivalent specific heat model has strong potential for use in the analysis of electronic modules using PCMs.

Crystallization fractionation technology for paraffin-based phase change materials production

2020 ◽  
pp. 33-38
Author(s):  
S.S. Kruglov (Jr.) ◽  
◽  
G.L. Patashnikov ◽  
S.S. Kruglov (Sr.) ◽  
◽  
...  
Keyword(s):  
Phase Change ◽  
Phase Change Materials
Sign in / Sign up

Export Citation Format

Share Document