Questions tagged [superconduction]
3 questions
9
votes
2 answers
Do liquid hydrogen-based cooling devices exist and what are they used for?
Liquid hydrogen cooling could be some intermediate solution between helium and liquid nitrogen based cooling. For example, some type of superconductors could be cooled by liquid H2, and this could be much cheaper than the liquid He.
What are their…
peterh
- 2,419
- 4
- 28
- 44
5
votes
1 answer
Calculating Anisotropic Thermal Conductivity for two Materials
I've been working with SC magnet quench simulations. The conductor is made from NbTi in a Cu channel with a 5:1 ratio of Cu:NbTi. Opera3d has a quench program with an example that I began working from. In a quench scenario using a solenoid made from…
Chris
- 153
- 5
3
votes
1 answer
Ratio between heat transfer coefficient and thermal conductivity
Consider the Robin boundary condition for the diffusion/heat equation $\mathrm{u_t=a(t)u_{xx}+f(x,t)}$:
$$\mathrm{-k(t)u_x(0,t)=h(t)u(0,t)}$$
or
$$\mathrm{u_x(0,t)+\frac{h(t)}{k(t)}u(0,t)=0}$$
where $\mathrm{k(t)}$ thermal conductivity and…
math
- 131
- 1