Study of the reduction of the onset temperature in a loop-tube-type thermoacoustic prime mover using Conical Phase Adjuster.- Based study on the installation position and onset temperature of Conical Phase Adjuster -

2021 ◽  
Author(s):  
Takumi Matsumoto ◽  
Shin-ichi SAKAMOTO
Keyword(s):  
High Temperature ◽  
Stability Analysis ◽  
Onset Temperature ◽  
Prime Mover ◽  
Tube Type ◽  
Temperature Tendency

Abstract In this report, we proposed the installation of a Conical Phase Adjuster (CPA) in a thermoacoustic prime mover as a method for reducing the onset temperature and investigated the effect of the installation position of CPA on the onset temperature using stability analysis. The onset temperature of CPA also was investigated experimentally by changing the installation position of CPA. As a result, when CPA was installed at 1000 mm from the high-temperature end of the stack, the onset temperature was 195 K lower than the onset temperature without CPA, that is, the installation of CPA in a loop-tube-type thermoacoustic prime mover reduced the onset temperature by 29 %. Comparing onset temperatures of PA had installed in a system, CPA is considered to have the same effect as PA because the onset temperature tendency of CPA to reduce at the installation position agrees with that of PA.

Synchroshear Versus Conventional Shear Mechanisms in Transitionmetal Disilicides with the C40 Structure

1999 ◽  
Vol 578 ◽  
Author(s):  
H. Inui ◽  
M. Yamaguchi
Keyword(s):  
High Temperature ◽  
Low Temperature ◽  
Plastic Flow ◽  
Deformation Mechanism ◽  
Deformation Behavior ◽  
Basal Slip ◽  
Room Temperature ◽  
Onset Temperature ◽  
Factors Affecting ◽  
Temperature Group

AbstractThe deformation behavior of (0001) <1210> basal slip in single crystals of five different transitionmetal disilicides with the C40 structure has been investigated in the temperature range from room temperature to 1500°C in compression. These disilicides are found to be classified into two groups depending on the onset temperature for plastic flow. The low-temperature group, which consists of VSi2, NbSi2 and TaSi2, exhibits the onset temperature for plastic flow around 0.3 T/Tm (melting temperature) and deforms by a conventional shear mechanism. In contrast, the high temperature group, which consists of CrSi2 and Mo(Si,Al)2, exhibits the onset temperature around 0.6T/Tm and deforms by a synchroshear mechanism. Factors affecting the deformation mechanism in these C40 disilicides are discussed in terms of directionality of atomic bonding and the relative stability of the C40 phase with respect to the C11b phase.

scholarly journals Structure and Stability Analysis of Cytotoxic Complex of Camel α-Lactalbumin and Unsaturated Fatty Acids Produced at High Temperature

2011 ◽  
Vol 28 (6) ◽  
pp. 919-928 ◽  
Author(s):  
Maliheh S. Atri ◽  
Ali A. Saboury ◽  
Ali A. Moosavi-Movahedi ◽  
Bahram Goliaei ◽  
Yahya Sefidbakht ◽  
...  
Keyword(s):  
Fatty Acids ◽  
High Temperature ◽  
Stability Analysis ◽  
Unsaturated Fatty Acids ◽  
Structure And Stability

Thermal stability analysis of high brightness LED during high temperature and electrical aging

2007 ◽  
Author(s):  
L.-R. Trevisanello ◽  
M. Meneghini ◽  
G. Mura ◽  
C. Sanna ◽  
S. Buso ◽  
...  
Keyword(s):  
Thermal Stability ◽  
High Temperature ◽  
Stability Analysis ◽  
High Brightness ◽  
Electrical Aging
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