Direct Colorimetric Temperature Measurement Ahead of Flame Zone with Polydiacetylenes.

ABSTRACT: Measurement of temperature and heat transfer ahead of spreading fire is essential to developing our understanding of the mechanisms involved in fire spread and explosions. Because the temperature gradients in spreading fires are often steep and occur on short spatial and time scales, these measurements are notoriously difficult. Current techniques such as thermocouples require painstakingly careful engineering to ensure accurate results. Other approaches such as thermal cameras and Schlieren imaging require expensive, complex optical setups that are expensive, not amenable to widespread deployment, and require specialized expertise to deploy. Polydiacetylenes (PDAs), a class of color-changing polymers, were developed into dynamic temperature sensors, enabling the direct measurement of temp

SUBMITTER: Finney TJ 

PROVIDER: S-EPMC11923839 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature