Melting with convection and radiation in a participating phase change material

Study of coupled transient radiation-natural convection heat transfer across rectangular cavities in the vicinity of low emissivity thin films for innovative building envelope applications

“…development of sophisticated timberfabric structures [29]) or development of sophisticat impl m ntation of xisting mat rials in or r to augm nt nv lop 's insulation capacity [10], [30] and thermal inertia [31], [32].…”

“…Every specific cavity problem impose special care regarding the description of coupled convection and radiation heat transfer, due to the state and the thermo-physical characteristics of the enclosing surfaces, the imposed gradient temperature, the eventual existence of a heat source inside the cavity, the geometry of the cavity and the nature of the investigated fluid. Thus, studying natural convection inside cavities and enclosures for building applications may generally need a multiscale research, since enclosures can be studied in nano [45], [30] micro [31], and meso-scale [46], [47] on a variety of sophisticated envelope configurations. Whereas, the heat transfer in cavities has been extensively studied in many thermal engineering applications -to mention just one example: in solar thermal receivers ( [48], [49])-there are only few works that focus on the study of natural convection in the vicinity of innovative constructive materials within building envelope complexes with the aim to investigate the thermal performance of the entire envelope system.…”