(576b) A Modeling Approach to Understanding and Improving Thermal Comfort in Polyurethane Mattress Foams
AIChE Annual Meeting
Wednesday, October 31, 2018 - 3:45pm to 4:00pm
In order to take a more scientific approach to viscoelastic foam development, the thermal comfort aspect was explored using a multi-physics modeling approach. The model components included finite element analysis to simulate the transport of heat and moisture in a mattress in contact with a human body, a lumped-parameter model to capture the bodyâs heat generation and sweating response to its external environment, and semi-empirical sub-models to relate foam structure to macro-scale foam properties, including moisture and thermal diffusivities. This modeling capability allows for a more detailed analysis of how different parameters, including various foam structures and additives (as well as mattress layer construction), affect the comfort level of the sleeper.