THERMAL CONDUCTIVITY OF SPRAY-ON FOAM INSULATIONS FOR AEROSPACE APPLICATIONS

被引：8

作者：

Barrios, M. ^{[1
]}

Vanderlaan, M. ^{[1
]}

Van Sciver, S. W. ^{[1
]}

机构：

[1] Natl High Magnet Field Lab, Tallahassee, FL 32310 USA

来源：

ADVANCES IN CRYOGENIC ENGINEERING, VOLS 57A AND 57B | 2012年 / 1434卷

关键词：

Polyisocyanurate foam; insulation; thermal conductivity; SOFI;

D O I：

10.1063/1.4707057

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A guarded-hot-plate apparatus [1] has been developed to measure the thermal conductivity of spray-on foam insulations (SOFI) at temperatures ranging from 30 K to 300 K. The foam tested in the present study is NCFI 24-124, a polyisocyanurate foam used on the External Tanks of the Space Shuttle. The foam was tested first in ambient pressure air, then evacuated and tested once more. These thermal conductivities were compared to the thermal conductivity taken from a sample immediately after being subjected to conditions similar to those experienced by the foam while on the launch pad at Kennedy Space Center. To mimic the conditions experienced on the launch pad, an apparatus was built to enclose one side of the foam sample in a warm, humid environment while the other side of the sample contacts a stainless steel surface held at 77 K. The thermal conductivity data obtained is also compared to data found in the literature.

引用

页码：1319 / 1326

页数：8