Thermal benefit of igloos in extremely cold conditions in Harbin, China

Zhen, Meng; Dong, Qi; Xu, Min; Liu, Ying; Zhang, Hongrui; Jia, Yuling; Yang, Bin

doi:10.1016/j.buildenv.2020.107546

Cited by 7 publications

(1 citation statement)

References 34 publications

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“…The inhabited igloo composed of snow and ice blocks exhibits excellent thermal protection from exterior extreme cold conditions while maintaining a warm interior temperature. − The porous snow, as a thermal insulation layer, limits air convection to prevent heat from passing through. , Inspired by the concept of the igloo, a hierarchical nanocomposite coating material composed of aqueous-based mesoporous silica aerogel and TiO 2 pigment paint has been designed which exhibits high thermal insulation and reflectance, mechanical adhesion, and wear resistance. The thermal management of nanocomposite paints via a scalable spray-coating technique is provided through the integration between thermal insulation and light reflectance from hierarchical nanostructures.…”

Section: Introductionmentioning

confidence: 99%

Reflective Paint Consisting of Mesoporous Silica Aerogel and Titania Nanoparticles for Thermal Management

Petit

Luigi

et al. 2021

ACS Appl. Nano Mater.

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Thermal insulation paint material is an energy-critical coating component for thermal management in energy-efficient buildings, vehicles, electronics, and data centers. Long-standing pursuits for the paint coating materials are high thermal insulation and light reflectance, mechanical durability, and wear resistance. Here we describe an aqueous-based hierarchical coating nanocomposite composed of mesoporous silica aerogel and titania nanoparticle pigment paint which exhibits a low thermal conductivity of 0.029 W/m K, a high visible reflectance of 90%, and a mechanical Young’s modulus of ∼4.86 MPa with a high abrasion resistance. The hierarchical and hydrophobic nanocomposite coatings show robust thermal cycling and thermal resistance, resulting in an equivalent cooling power of 928 W/m2. The design and manufacturing principle reported here could extend to a variety of insulation coating materials to achieve energy efficiency and sustainability.

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