Experimental study on full-scale ZrCo and depleted uranium beds applied for fast recovery and delivery of hydrogen isotopes

A three‐dimensional heat transfer model for thermal performance evaluation of ZrCo‐based hydride bed with embedded circular‐shaped cooling tubes

“…It was shown from the results that the MHB with copper foams owned an improved heat transfer capability and then, such a reactor was considered to be efficient for heat diffusion during the chemical reaction. Subsequently, Kou et al presented a thin double annulus MHB, suggesting that the presented reactor could effectively enhance the hydrogen storage performance. Zhang et al proposed a distinctive reactor structure for improving the heat exchange.…”

“…Heating devices required for discharging hydrogens are installed at the center and outside of the tank structure. It needs to be emphasized that this complex MHB has been verified from experiments to be reasonable and effective for improving the hydrogen storage performance 19 and in turn, it could meet design and practical demands. Figure 2 exhibits a cooling pipe configuration embedded in the MHB for the use of heat diffusion.…”

Effects of temperature and hydrogen pressure on the activation behavior of ZrCo

“…Although DU has favorable tritium storage properties like large storage capacity, wide equilibrium tritium plateau and stable tritium recovery/delivery reversibility, its disadvantages such as radioactivation, pyrophoricity and pulverization, throw obstacles in the way of general application [9]. Meanwhile, our recent study showed that the fast hydrogen delivery rate target for ITER could be achieved by DU bed only at above 450 C [10]. At so high temperature, it is difficult to avoid the significant permeation loss of tritium from the bed and the heat radiation damage to glove box.…”

Effects of V doping on microstructure, kinetic, and thermodynamic characteristics of Zr 50‐ x V x Co 50 ( x = 0, 2.5, 3.5, and 5.0) hydrogen storage alloys

“…In terms of kinetic properties, Co replaced by Mn, Nb, Mo, and Fe largely reduces the activation time and increases the activation rate 15,18,19 . The temperature and pressure affect the hydriding/dehydriding kinetics of the ZrCo alloy 20‐22 . The hydrogenation at 100°C under 0.8‐bar H 2 and dehydrogenation at 500°C under vacuum are recommended for an efficient and fast activation of ZrCo 14 .…”