Local Optimization of Bonnet Thickness in Global Heat Balance of Neonate

Abstract

Global heat transport for an neonate body is determined by means of heat balance with the term describing evaporation. The heat storage rate is the unbalanced difference between the metabolic heat production and various heat loss mechanisms within all body parts. The most sensitive portion is the head, which forces local optimization of the bonnet thickness. The local problem is described by differential heat and mass transport equations and the set of conditions. The changeable covering area of the bonnet can equalise the global heat balance and prevent hyperthermia or hypothermia.

Application of a Thermal Mannequin to the Assessment of the Heat Insulating Power of Protective Garments for Premature Babies

“…[11] Global heat transport in the macro-scale can be determined by means of balance formulation with the term describing sweat evaporation. [11,12] Analyzing these equations, [17] it can be concluded that the experimental determination of the heat insulating power of protective garments for premature babies seems to be legitimate. This is possible through constructing a thermal mannequin that makes it possible to assess the heat insulating power of particular garment parts of the newborn garment.…”