Anytime, anywhere. The mobile refuelling unit
trailH2TM-gas.
Introduction
Today, hydrogen vehicles can achieve almost the same performance as vehicles with conventional gasoline or
diesel engines. But whereas the technical prerequisites for the use of this versatile energy carrier as a fuel are
basically available, a large-scale and sustainable hydrogen infrastructure (i.e. a refuelling station network) is
not yet in place.
Already in 2006, Linde developed the first self-sufficient mobile hydrogen refuelling station for liquid and
compressed hydrogen with funding from the German Federal State of North-Rhine Westphalia. Motivated by
continuously increasing activities in the field of hydrogen and fuel cell applications, a new unit was developed
and put into service: the trailH2TM-gas. With an increased capacity and performance, the trailH2TM-gas sets
new standards in the hydrogen sector. It is the perfect piece of equipment for vehicle testing and vehicle
demonstrations, especially where no stationary hydrogen infrastructure is installed.
Background
Currently, our transportation system still depends largely on the use of fossil fuels, such as crude oil or natural
gas. The application of these energy sources however, implies the generation of CO2 emissions contributing to
global warming and therefore represents a considerable danger to our environment.
That is why there is a growing need for an emission-free energy carrier. For decades, Linde has been committing
itself to the utilisation of hydrogen for transportation purposes and has achieved a leading position when it
comes to hydrogen applications. In recent years, Linde has also made great progress with the development of
hydrogen fuelling technologies.
Specifications and
advantages
Hydrogen combustion engines function on the same principle as gasoline or diesel combustion engines. For
combustion, hydrogen has to be available in gaseous form, but it can be stored either in gaseous or liquid
form. Hydrogen fuel cells also need gaseous hydrogen in order to power electric motors. Regardless of the
storage form and the drive mechanism however, emissions are only produced in the form of water vapour.
The trailH2TM-gas contains 18 bundles of compressed gaseous hydrogen at 300 to 450 bar. Two separate
high-pressure couplings allow for quick filling procedures for 350 as well as 700 bar. To guarantee fast-fill
refuellings with 700 bar, a compressor system is required. For this reason, an in-house-developed compressor
was adapted and integrated.
trailH2TM is a trademark of The Linde Group.
3 Anytime, anywhere. The mobile refuelling unit trailH2TM-gas.
Technical specifications
Vehicle
Trailer dimensions (L × W × H)
Total weight
Type of truck
CGH2-refuelling unit
Fuelling pressure 1
Fuelling pressure 2
Overall capacity
Mass
Low-pressure storage
Mass
Max. operating pressure
Medium-pressure storage
Mass
Max. operating pressure
High-pressure storage
Mass
Max. operating pressure
Compressor
Throughput
Max. operating pressure
Types of fuelling couplings
Set-up time
14 m × 2,6 m × 4 m
35 t
Variable
350 bar at 15 °C
700 bar at 15 °C
241 kg (equals approx. 45 passenger car refuellings)
103 kg
300 bar
103 kg
300 bar
35 kg
450 bar
70 Nm3/h
900 bar
WEH TK16, 350 bar
Walther Series HG, 700 bar
1 hour
Linde AG
Linde Gases Division, Seitnerstrasse 70, 82049 Pullach, Germany
Phone +49.89.74 46-0, Fax +49.89.74 46-12 30, www.linde-gas.com