We’re here today
to dispel some of the myths surrounding LNG, liquefied natural gas, and who better to do that with me than Volvo Trucks’ safety director,
Carl Johan Almqvist. – Welcome.
– Thank you. Pleasure to be here. Now, let’s have a look here. I’m going to take
some pure normal drinking water, pour it in a glass like this. So here I have some liquid gas.
Now, this is very cold. So now I’m going to pour
a little of this into the glass. Minus 162 degrees Celsius.
There. You hear how it’s crackling. – See that?
– Yeah. So essentially, then,
the gas has all evaporated now. It’s evaporating
and going up into the atmosphere. Question is, is this toxic? I don’t know.
I don’t think I would dare drink… Beautiful cold water.
Isn’t that fantastic? Wow. So what would happen if you were
to spill some of the liquid gas on this tablecloth? Well, let’s give it a try. We just
pour it out here onto the tablecloth. The liquid is forming into gas
and then it’s evaporating. That shows that it’s not harmful
if you get a spill on soil or on the ground or anything like that. So, Carl Johan, the vapour cloud here,
is that flammable? Yes, it actually is,
and just let me show you here. It is flammable. At the same time,
that’s a very friendly flare. You can actually put it out just putting your glove over it
to extinguish it. And I can imagine
a lot of drivers are maybe worried about travelling with this gas
in a huge tank. They maybe have the feeling
that they’re travelling with a bomb. – How can you put their minds at ease?
– What happens if I take a cigarette? It is lit. You can see that the smoke
is coming out of it there. Now, let’s put it
into the liquid gas here. Heat’s coming into it. Now, it looks
like it’s still burning, doesn’t it? – Yeah, it looks like smoke.
– So let’s see if it still works. Nothing. So it’s extinguished. But I’m sure at Volvo you’ve done
a lot of internal safety tests to really put this to the test. – Can you talk about a few of those?
– Definitely. The side crash test, where we actually
want to look at the tank itself to see where
the most sensitive part of that is, and that is, of course,
the connections towards the rear. And it barely looks damaged. We put a lot
of engineering resources into that. Then we’ve also done some other tests,
like the bonfire test, where we put a flare under the tank
itself, heat it up and see what happens. That sounds scary,
to light a fire under. It sounds scary, but nothing’s going to
happen, because it can’t explode. And then on top of that
we’ve also done a rollover test, because that is a very common accident,
that the truck rolls over. And there we made sure that the tank doesn’t hit the ground
before the truck. It works very well there too. Would you say that this type of gas is really one of the safest
of the common fuels out there today? Well, looking at the track record
of LNG, it is showing
that it is a very safe fuel. I think another one of the common myths is that it takes a long time to fill
one of these up compared to a diesel. Again, there we’re on par
with the diesel. You just hook up and you fill it,
same time as a diesel tank. The beauty of this is you’re not
going to smell diesel afterwards. So it looks like any other truck, but
does it perform like any other truck? Yes, it does, and that’s the beauty
of this gas-powered unit, because it’s running
in the diesel process, so we’re getting the same performance
as a diesel, we’re on par with a diesel. I just wanted to tell you
you’ve convinced me. I even brought my glass of water. I thought I just have to drink a little
bit to prove that I believe you. – Did it work?
– Regular water. – I survived.
– Fantastic. That’s great. – Let’s take the truck first, then.
– We’ll see the performance for real.