Analytical and experimental investigations on the heat transfer properties of light concrete

被引：11

作者：

Bonacina, C ^{[1
]}

Campanale, M ^{[1
]}

Moro, L ^{[1
]}

机构：

[1] Univ Padua, Dipartimento Fis Tecn, I-35131 Padua, Italy

来源：

INTERNATIONAL JOURNAL OF THERMOPHYSICS | 2003年 / 24卷 / 05期

关键词：

heat transfer; light concrete; moisture transfer; thermal conductivity; vapor;

D O I：

10.1023/A:1026167505302

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

It is well known that the thermal performance of some insulating and building materials is related to the actual operating conditions because the thermal conductivity of such materials is highly dependent on the moisture content. Since the thermal conductivity of liquid water is about 25 times greater than that of air, it is quite easy to understand how even small variations of the moisture content can have a significant impact on thermal performance. For this reason it is important to find a correlation between the moisture content in a specimen and its thermal conductivity. The purpose of this paper is to investigate both experimentally and theoretically the moisture contribution during the measurement of the heat transfer properties in light concrete slabs ( autoclaved concrete and concrete lighted with polystyrene pearls) and to correlate its thermal transmissivity with the moisture content.

引用

页码：1407 / 1414

页数：8

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