ISSN Online: 2688-7231
ISBN Online: 978-1-56700-524-0
Proceedings of the 26thNational and 4th International ISHMT-ASTFE Heat and Mass Transfer Conference December 17-20, 2021, IIT Madras, Chennai-600036, Tamil Nadu, India
Management of Thermal Runaway in Batteries using Water Mist for Air Precooling
摘要
In the present study, the use of water mist to precool air
which is then used to cool a Lithium-Ion Cell is studied. To
comprehensively understand the extent of cooling, a 0D
lumped model of the battery based on ordinary differential
equations representing thermal transport and chemical kinetics
of a 18650 NCA/Graphite Cell is used based on Arrhenius
electrochemical equations to simulate the thermal behaviour,
and an efficiency factor is used to account for the venting of
the cell. An Eulerian approach is used for an isolated droplet
and modelled for drag, evaporation, heat transfer and mass
transfer to model the evaporation of water mist. Both
convective and radiative heat transfer is considered for
modeling the heat transfer for the lithium cell. For convective
heat transfer, flow across a cylinder is considered for
maximising heat transfer.