Abstract
Hot pressurized steam is a dangerous environment threatening the safety of workers. Developing steam protective clothing with excellent thermal protective performance (TPP) and clarifying its design mechanism are essential to protecting workers. This study totally developed eleven spacer fabric systems (SFSs) and investigated the effects of four design factors of spacer fabrics (SFs) on TPP, including heat setting, spacer yarn fineness, feeding structure, and top layer structure. Additionally, a heat and mass transfer model was established to analyze the steam protective mechanism of SFSs. The results demonstrated that SF heat setting had a negligible effect on TPP of SFSs. As the spacer yarn thickened to 80 D, the TPP of SFSs improved and the positive effect of feeding structure II on TPP increased. Conversely, dense mesh on the SF top layer had a negative effect on TPP. The model predicted that skin burn times of SFSs decreased with the increasing of pressure. When the pressure was 2.5 kPa, the relative errors between experimental and predicted skin burn times were the smallest (0∼12 %), which could more accurately simulate the steam protective mechanism of SFSs. These findings provide a theoretical basis for the development of high performance steam protective clothing.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
