Effective Thermal Conductivity and Diffusivity of Containment Wall for Nuclear Power Plant OPR1000

Experimental and numerical evaluation of the effect of micro-aeration on the thermal properties of chocolate

“…7c, an average decrease of 5% in thermal diffusivity for the 10% micro-aerated chocolate and 7% decrease for the 15% micro-aerated chocolate are estimated. Similar findings were reported for concrete 48 and porous aluminium alloys 56. The mass density values against porosity using eqn (7) are shown in Fig.…”

“…In comparison to the significant number of analytical models predicting the effective thermal conductivity, analytical models for the specific heat capacity are limited to the rule of mixtures, RoM, approximation. 27,47,48 It is unclear, according to author's knowledge, why there are no other available analytical models for C p,eff in the literature, whilst for k eff there are plethora of analytical and semi-empirical models. One possible explanation could lie in the fact that most of the processes investigated for composites/porous materials in the literature regard heat transfer at steady state, hence the effects of specific heat capacity become irrelevant.…”