【摘要】 将46#石蜡与硬脂酸钠按比例混合,分别使用直接混合法与分层插入法加入普通水泥墙体中,研究其传热性能。结果表明:含有相变材料墙体的传热性能优于普通墙体,其温度变化更为平稳,升温、降温均有延迟现象。与普通墙体7.9℃/h的升温速率相比,直接混合法、分层插入法制备的相变墙体升温速率分别为3.9℃/h、2.6℃/h,分层插入法制备的墙体节能效果更好。更多还原

【Abstract】 The 46# paraffin and sodium stearate were mixed in proportions, and the direct heat mixing method and the layered insertion method were added to the ordinary cement walls to study the heat transfer performance. The results show that the heat transfer performance of wall material containing phase change material is better than that of ordinary wall. The temperature change is more stable, and the temperature rise and decrease are delayed. Compared with the temperature increase rate of 7.9°C/h in common walls, the temperature-rise rates of phase-change walls prepared by direct mixing and layered insertion methods were 3.9°C/h and 2.6°C/h, respectively. The layered insertion method is better energy efficiency.更多还原