Heidebrenner "Grilling with Hydrogen"
A Review of the H2-Talks Event
Welcome to the Heidebrenner Blog! In our latest post, we look back at the event “H2-Talks Grilling with Hydrogen” on December 8, 2023. Heidebrenner participated in the event of the initiative “H2!Raum Mittelstand Ruhr 2030”, which focused on grilling and the use of hydrogen.
The 3-zone gas-lava stone grill
Heidebrenner presented a 3-zone gas-lava stone grill specially made for the event, which can be operated with hydrogen. This was characterized by a precise temperature control and a rapid heating of the grill, which led to impressive results in the preparation.
Culinary masterpieces with TV chef Stefan Opgen-Rhein
Renowned TV chef Stefan Opgen-Rhein and his team used the power of the Heidebrenner lava stone grill to prepare delicious dishes on site. Under the motto “Bratwurst from the hydrogen grill”, the precise temperature control and easy operation of the grill resulted in culinary masterpieces, such as roulades and zucchini, which were not only tasty but also visually convincing thanks to the V-grids used.
Feedback from the professional: Stefan Opgen-Rhein impressed
In a short interview after the event, TV chef Stefan Opgen-Rhein spoke enthusiastically about the performance of the lava stone grill. Precise temperature control and rapid heating have convinced the team, and they plan to use the Heidebrenner Grill at future events as well.
Source cover image: H2Raum
Conclusion: Everything is possible with Heidebrenner
The event “H2-Talks Grilling with Hydrogen” impressively underlines that everything is possible with Heidebrenner!
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FAQ
What does grilling with hydrogen change?
Hydrogen provides precise temperature control and rapid heating. This allows you to prepare your meals more efficiently. The pollutant load is also significantly lower with hydrogen.
Which devices can be operated with hydrogen?
Currently, only certified lava stone grills, ranges and woks can be operated with hydrogen.
What do I have to look out for in relation to the risk of explosion with hydrogen?
The most important thing here will be to pay attention to the regulations and comply with them when approving hydrogen in Germany. It is recommended to work with very good exhaust systems, an open window and safe switch systems.
How long can I grill with hydrogen?
Example based on a 3-zone lava stone grill:
1 heating zone needs 12,8 kW/h x3 = 38,4kW/h. A bottle of hydrogen of normal size has a storeable energy of 27. 9 kW -> 27. 9/38. 4 = 0. 72 -> since 38. 4 kW per hour, you can now 60min. Calculate x 0. 72 and get a run time of the 3-zone lava stone grill of 44min.
However, it must be said that the use of all 3 heating zones is considered at 100%. Usually one takes an efficiency of 50%, since only in rare cases are all 3 heating zones used with maximum output.
Thus we arrive at a final result of 1. 28h.
How much does hydrogen cost?
At the moment, hydrogen still costs a lot. The purchase price of hydrogen is currently 20ct. per kilowatt-hour. However, these costs are most likely to fall over the next few years, particularly with regard to the authorisation of hydrogen.
Application differences between propane, natural gas and hydrogen
Grilling temperatures:
Compared to propane and natural gas, hydrogen offers precise temperature control and faster heating. This allows an efficient preparation of your culinary delights.
Materials (V4A):
Stainless steel (V4A) is suitable for hydrogen and offers high resistance to corrosive influences. This ensures a long service life of your grill.
Challenges and costs:
While hydrogen is more sustainable and resource-saving, the switch to hydrogen grilling equipment initially involves investment costs. These can be offset by long-term savings in fuel costs and environmental benefits.
Tank pressure on pressure converters in the house/restaurant:
It is important to monitor the tank pressure and make sure it meets the requirements of the grill. Professional installation and regular maintenance are essential and of great importance.
Changes in device setup:
Hydrogen grills usually do not require significant changes in the equipment setup. However, the placement of the hydrogen tank requires special considerations.
Exhaust gas piping:
The exhaust gas piping shall meet the specific requirements for hydrogen operation. Experts are at your side to advise you on this.
Conditions and conditions in the kitchen:
Pipe cross-sections:
Pipe cross-sections must meet the requirements for hydrogen applications to ensure safe operation.
Pressure range:
Hydrogen has specific pressure requirements. Equipment and installations must meet these requirements to ensure safety and efficiency.
Energy content per m³:
Hydrogen has a different energy content per cubic metre compared to propane and natural gas. This must be taken into account when planning and calculating when using the grill.
Process for hydrogen production
Electrolysis (electricity):
Electrolysis is an efficient hydrogen production process that uses electricity to break down water into hydrogen and oxygen.
Water vapour:
Steam reforming is another process in which hydrogen is produced by the reaction of steam with hydrocarbons.
