Complex heat exchange in brake friction pairs

• DOI: 10.22630/aspa.2024.23.3
• Publication Date: 2024-03-18T14:12:57Z
• Authors: Ivan Kernytskyy; Dmytro Volchenko; Yuriy Royko; Dmytro Zhuravlev; Bohdan Dolishniy; Iryna Bekish; Vasyl Rys; Ruslan Humeniuk; Yaroslav Sholudko; Oksana Berezovetska; Olga Szlachetka
• Keywords: Biot number; Thermal Radiation

In the article, following issues are considered: general principles of complex heat transfer in friction pairs brake devices; radiant exchange from rough surfaces metal elements brakes; combined action fields thermal conductivity and radiation brakes. The role dynamic boundary layers resulting air-washing brakes with open their effect on cooling is discussed. A new relationship between Biot Nusselt criteria shown, which presented form resistances surface near-surface pulley rim. comparison showed that efficiency 1.5–1.7 W·m–2 times higher than conductivity. Radiation ratio power flux to unit area through passes.