[关键词]
[摘要]
燃烧热值是评估建筑材料火灾危险性的重要指标,其测定精度对消防设计和火灾风险评估至关重要。为了研究环境温度对热容量标定和燃烧热值的影响,通过氧弹量热法在不同温度条件下进行试验。结果表明,环境温度升高会导致热容量标定值和燃烧热值下降,且温度波动显著影响结果的稳定性。建议在测定过程中严格控制环境温度,以提高结果的准确性和可靠性。
[Key word]
[Abstract]
The calorific value of combustion is an important indicator for evaluating the fire hazard of building materials, and its measurement accuracy is crucial for fire design and fire risk assessment. In order to study the influence of environmental temperature on thermal capacity calibration and combustion heat value, experiments are conducted using oxygen bomb calorimetry under different temperature conditions. The results show that an increase in environmental temperature can lead to a decrease in thermal capacity calibration value and combustion heat value, and temperature fluctuations significantly affected the stability of the results. It is recommended to strictly control the environmental temperature during the measurement process to improve the accuracy and reliability of the results.
[中图分类号]
TU111.2
[基金项目]
河北省博士后基金(B2022003024)