Assessing the performance of pneumatic cushions with gKIN heat flux sensors

Andrea Alongi, Adriana Angelotti and Alessandra Zanello from the Politecnico de Milano, together with Alessandro Rizzo from Canobbio Textile Engineering, used a combined set up of several of our sensors to research the thermal performance of pneumatic cushions. These are materials widely used as membrane layers in building envelopes. Their task is to ensure proper insulation of buildings, using the thermal resistance properties of the cushions for that purpose.

The thermal resistance parameters of cushions are usually assessed through calculations based on the assumption that cavities are approximated as rectangular enclosures, but without actual scientific data to support that. The authors performed the research to try to fill this gap.

For that purpose, they set up a Dual Air Vented Thermal Box to create the right environmental conditions, combined with 5 gSKIN XM 26 9C and 11 gSKIN-XI 26 9C sensors for heat flux measurement. 

The researchers accurately measured the thermal performance of several samples, showing that going from a single large cavity to two smaller ones almost doubles the overall thermal resistance of the cushion. This is a significant achievement and we congratulate the authors on finding evidence on this topic! You can download the paper with the results and detailed discussion in the Proceedings of the TensiNet Symposium 2019.

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