19–22 May 2025
US/Mountain timezone

Understanding thermoregulation and ventilation in termite mounds for eco-friendly building solutions

21 May 2025, 09:35
15m
Oral Presentation (MS20) Biophysics of living porous media MS20

Speaker

Dr Kamaljit Singh (Heriot-Watt University)

Description

Termite mounds are renowned for their ability to maintain self-sustained ventilation and thermoregulation irrespective of external climatic conditions. Although there has been significant interest in this topic, especially for designing energy-efficient buildings, it is still unclear how the mound properties are controlled. In this study, we combine X-ray tomography and numerical simulations to correlate structural properties and function in mounds constructed by Trinervertmes geminatus, Cubitermes, Apicotermes and Thoracotermes termites species. The results show a variation in flow and thermal properties in the different mounds. We find that the fluid flow in the mound is strongly controlled by the outer wall properties. We also observe that structural properties of the mound like macroporosity as well as microporosity play a crucial role in determining the diffusion of heat and CO2 through the structure. These results will be integrated with findings from other species obtained from in-situ measurements and mounds scanned at microscale, allowing us to gain a deeper understanding of the processes governing self-sustained ventilation and thermoregulation in termite mounds.

Country United Kingdom
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Primary authors

Nengi Karibi-Botoye (PhD Student) Dr Guy Theraulaz (Centre de Recherches sur la Cognition Animale (CRCA), Centre de Biologie Intégrative (CBI), Université de Toulouse,CNRS, UPS, Toulouse, France) Dr Bagus Muljadi (Department of Chemical and Environmental Engineering, University of Nottingham, NG7 2RD Nottingham, UK) Julien Maes (Heriot-Watt University) Hannah Menke (Heriot-Watt University) Prof. Vasily Demyanov (Institute of GeoEnergy Engineering, School of Energy, Geoscience, Infrastructure & Society, Heriot-Watt University, Edinburgh,UK) Dr Kamaljit Singh (Heriot-Watt University)

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