Coming back to EV fires on car carriers.
It has been suggested that if an EV like this is driven too enthusiastically onto a Ro/Ro car carrier/ ferry or any ramp that it could bottom out and do damage to the battery, which lives in the lowest section of the car.
On top of that since mid 90's the design of car carriers has been changed, the vertical bulkheads were omitted, the thought was horizontal separation, by closing the ramps between the decks, was sufficient. The change of design made it possible to load the vessels faster and increase to load capacity.
The effect of Lithium Ion batteries was not taken in consideration at that stage.
Another fact to be taken in consideration is the effect of free surface on stability, in case the hull with multi layers is filled with water from the top.
Anybody who has played with load computers, knows that it doesn't take that much to create a negative stability with this type of hull. In other words it doesn't take much to capsize a hull like this.
In this particular case copious amounts of smoke can be seen escaping from the ventilation hatches. so while cooling the ship lot of water entered the hull from the top. However, were the ventilation hatches closed?
This ship with a crew of 24 was about 1/2 day sailing from its port of departure.
Just a few thoughts
It has been suggested that if an EV like this is driven too enthusiastically onto a Ro/Ro car carrier/ ferry or any ramp that it could bottom out and do damage to the battery, which lives in the lowest section of the car.
On top of that since mid 90's the design of car carriers has been changed, the vertical bulkheads were omitted, the thought was horizontal separation, by closing the ramps between the decks, was sufficient. The change of design made it possible to load the vessels faster and increase to load capacity.
The effect of Lithium Ion batteries was not taken in consideration at that stage.
Another fact to be taken in consideration is the effect of free surface on stability, in case the hull with multi layers is filled with water from the top.
Anybody who has played with load computers, knows that it doesn't take that much to create a negative stability with this type of hull. In other words it doesn't take much to capsize a hull like this.
In this particular case copious amounts of smoke can be seen escaping from the ventilation hatches. so while cooling the ship lot of water entered the hull from the top. However, were the ventilation hatches closed?
This ship with a crew of 24 was about 1/2 day sailing from its port of departure.
Just a few thoughts
