A substance of large thermal conductivity k is a good heat conductor, whereas one with small thermal conductivity is a poor heat conductor or good thermal insulator.
A good thermoelectric needs to be two things: a good electrical conductor and a bad heat conductor.
We considered wide temperature range and heat conductor lengths from nano- to macro-scale.
Engineers at MIT have developed a polymer thermal conductor — a plastic material that, however counterintuitively, works as a heat conductor, dissipating heat rather than insulating it.
Recently, a new target version with metallic heat conductor of minimal length and a long gravity-assisted heat pipe section was constructed.
The effects of heating are most pronounced in the structure with a thick insulating polymeric substrate which is a poor heat conductor and a single heat sink on the bottom of the substrate.
For cooling the liquid hydrogen/deuterium target from room temperature to the operating temperature (15 K/19 K) until recently a long solid copper heat conductor and a short heat pipe was used between cooling machine and the target cell.
Lumped model of CAP code uses 2-phase, 3-field equations for fluid behaviors, and has appropriate constitutive equations, 1-dimensional heat conductor model, component models, trip and control models, and special process models.
Rev. D 48 (1993) 1597 1601; T. Ruggeri, A. Muracchini, L. Seccia, Shock waves and second sound in a rigid heat conductor: a critical temperature for NaF and Bi, Phys.
We find that the thermal conductivity drops sharply to 17% of the pristine graphene value for a 1% O C ratio, and to 1.5% for a typical GO with 20% O C ratio, suggesting that typical GO is not a very good heat conductor compared to pristine graphene.
