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As lunar exploration advances, the development of durable and sustainable lunar surface architecture is increasingly critical, with a particular focus on material selection and manufacturing processes. However, current technologies and designs have yet to deliver an optimal solution. This study presented an innovative designs pattern for laser-sintered lunar soil bricks, namely a sintered glass outer layer and a core composed of lunar soil particles. For structural reinforcement purposes, a combined system of columns and slabs was implemented to improve the overall strength characteristics. This approach leverages the low thermal conductivity of lunar regolith particles in conjunction with the thermal stability, radiation resistance, and mechanical strength characteristics of glass. In this case, our simulations of heat conduction demonstrated a marked improvement in the thermal insulation properties of the new lunar soil bricks. The low thermal conductivity of lunar regolith effectively serves as an insulating layer, while the column, plate and glass outer layer, with their higher thermal conductivity, enable rapid thermal response across the entire structure and enhance spatial heat transfer uniformity. We further investigated the influence of structural variations on heat transfer mechanisms, revealing that the thickness of the glass layer exclusively modulates the heat transfer rate without altering its spatial distribution. Additionally, comparative analysis of all designed samples demonstrated that the novel sample displays superior thermal insulation properties, reduces average energy consumption by three quarters, and maintains adequate mechanical strength, alongside the proposal of a suitable assembly and construction methodology. Consequently, we believe that glassy composites exhibit substantial potential for space construction. These findings offer valuable insights and recommendations for material design in lunar surface construction.

期刊论文 2025-07-01 DOI: 10.1016/j.cscm.2025.e04636 ISSN: 2214-5095

With increasing global warming, the skiing season is shortened to different degrees all over the world. As a crucial way to ensure the sustainable development of the ski industry, snow storage has been gradually studied and applied in Europe. Covering thermal insulation materials is a key engineering measure for the success of snow storage. This study used numerical methods rather than an experimental method to evaluate the thermal insulation performance of nine snow storage coverage schemes in Harbin, Beijing, and Altay, China. We investigated the thermal insulation performance of nine snow storage coverage schemes (three natural materials and six artificial ones) using a solar radiation method and an implicit finite difference method. Sensitivity analyses were conducted, and the cost performance of schemes 5-9 were analyzed. Based on the cost and thermal insulation performance, we used schemes 4 (geotextile, straw bale), 5 (geotextile, extruded polystyrene foam), and 7 (geotextile, polyurethane foam) to evaluate the snow storage effects in Harbin, Beijing, and Altay. Results showed that among schemes 1-9, scheme 7 has the best thermal insulation performance. If natural materials are used, then scheme 3 gives the best thermal insulation performance. Among schemes 5-9, scheme 5 is the most economical. The heat transfer in Beijing is higher than that in Harbin and Altay, while the latter two show similar heat transfers. The combination of meteorological conditions and coverage schemes influence the melting rate of snowpacks. The melting rate of snowpacks can be reduced with an optimized coverage scheme. The proposed methods can serve the selection of coverage schemes for snow storage.

期刊论文 2021-12-01 DOI: http://dx.doi.org/10.1016/j.accre.2021.10.003 ISSN: 1674-9278
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