In a world with a constantly increasing demand
for climate-smart energy solutions,
one of the answers is natural gas and biogas.
Natural gas is one of the world's fastest growing major energy sources
and the cleanest burning fossil fuel.
The gas can be found in underground reservoirs all over the world,
and the resource of gas is larger than the oil reserves.
Natural gas comprises mainly of methane
but also small amounts of ethane, propane, butane and noncombustibles.
When converting the natural gas into fuel, like LNG,
these impurities are removed and can be used for other purposes,
such as fertilisers or plastic products.
The purified natural gas is cooled down to minus 161 Celsius.
By cooling down the gas, it changes property.
The result is LNG, liquefied natural gas,
a clear, colourless and nontoxic liquid.
LNG has several advantages compared to other fossil fuels.
It has lower CO2 emissions.
By liquefying, the volume decreases more than 600 times.
That's like going from a beachball to a ping-pong ball.
This makes it easier and more cost efficient to store and transport,
and now LNG is being shipped all over the world
in specially designed large tankers.
At the gas filling station,
it is also important to keep the LNG as cold as possible.
The colder the gas is, the more can be fitted into the tank of the truck.
The LNG is normally kept in cryogenic insulated storages,
today with a temperature of minus 130 to 140 degrees Celsius
and a pressure of five to eight bars.
But in the future, Volvo Trucks and major LNG providers
is aiming for minus 145 Celsius and three to four bar.
LNG is sold in kilos instead of litres.
Energywise, one litre diesel is equivalent to 0.72 kilograms LNG.
This means that you need approximately 20 kilos of LNG
to drive a Volvo FH 100 kilometres.
With LNG, the energy content is important.
This is measured in a Wobbe index
and can vary from gas station to gas station.
Volvo's engine works with all LNG qualities,
but, as a consumer, it is recommended that you check the Wobbe index
at the gas station where you usually fuel your truck.
Filling up LNG is as quick as diesel.
You can drive up to 1,000 kilometres with Volvo's largest tank alternative
and compared to conventional gas trucks, the fuel consumption is lower.
If you compare the CO2 footprint to diesel,
it's 20% lower with natural gas and 100% lower with biogas.
All in all, Volvo Trucks' new gas alternative
makes it possible to substantially reduce the climate footprint
of heavy long-distant transports.