In order to shorten the refrigeration time of beverage machine, improve cold storage capacity, reduce loss energy, and performance device. From perspective food safety, aluminum was selected as material, a spiral tube heat exchanger used simulate process theoretically, set economical reasonable energy equipment designed. By establishing physical mathematical model device, using ANSYS Workbench ...

Vacuum tube arrays with a sub-micrometer dimension were fabricated by using anodic aluminum oxide (AAO) nano-templates. Ni nanowires deposited electrochemically inside the pores of the AAO nano-templates were used as the field emitters. The pores were sealed by means of angled evaporation of titanium. The field emission measurement was carried out in atmospheric environment outside of a vacuum ...

When aluminum alloy tube have defects, they may be damaged by lateral impact in practical applications. Based on the general finite element analysis software, dynamic and performance research of with without defects different diameter to thickness ratios velocities were conducted this paper. The results show that weak resistance are prone local damage. Reducing ratio can improve structure; when...