Isothermal calorimeter EV

for gasARCbattery

EV Accelerating Rate Calorimeter To implement all of the tests with larger batteries, which can be carried out with small batteries using the esARC, THT developed the original EV-ARC in 1999. The EV calorimeter is necessary for larger batteries, modules and small packs, power tools, satellite, military and associated applications. The EV calorimeter is used when variation of heat release over surface area (MultiPoint measurement) is to measured and associated thermal management applications. The EV calorimeter is rugged and is sited in a secure Containment Vessel. Within the containment vessel the standard ARC calorimeter (as in ES-ARC) can be used and this is regularly supplied for "Double Systems". Such a system gives versatility capable of measuring:- small prismatic, coin cell, 18650 and other larger batteries used in power applications. With the EV system all safety tests can be carried out as well as Battery Performance studies. Overview The EV is an cylindrical calorimeter 25cm in diameter and 50cm depth. Utilises the same electronics and software as the standard esARC, but with a larger calorimeter suitable for testing 18650 to large prismatic cells. A larger and stronger blast box / containment vessel is supplied with built-in fume extraction. The size of the containment vessel allows extra space for the incorporation of many options including heat capacity, multipoint option for spatial temperature measurements, gas collection and controlled speed nail penetration. Specification Hardware Features & Performance EV Calorimeter 25cm diameter; 50cm depth; 20mm thick aluminium, 8 heaters, 6 measuring, control and safety thermocouples