Process design of gas mixing unit for ammonia, hydrogen, petroleum, and natural gas mixing
Hägglund, Sara (2024)
2024
Julkaisu on tekijänoikeussäännösten alainen. Teosta voi lukea ja tulostaa henkilökohtaista käyttöä varten. Käyttö kaupallisiin tarkoituksiin on kielletty.
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi-fe2024061352485
https://urn.fi/URN:NBN:fi-fe2024061352485
Tiivistelmä
The shipping industry is going through a major change as fossil fuels are being phased out and renewable fuel alternatives are becoming more relevant. At Wärtsilä, this means an expansion of different fuel-testing capabilities. For the testing of different fuels to be possible, infrastructure for the new fuels is needed.
In this thesis, the design of a gas mixing station for hydrogen, ammonia, petroleum, and natural gas is considered. Ammonia and hydrogen are carbon free fuels, which means no carbon dioxide emissions. However, since both pure ammonia and hydrogen have some deficiencies when combusting them it might be beneficial to mix them with other fuels, such as natural gas and petroleum gas.
The theoretical part of the thesis studies the ammonia, hydrogen, petroleum and natural gas fuel and the safety aspects involving them. How mixing the fuels affects these gases is also researched as well as the material and equipment considerations. Lastly, the method behind the design calculations is explained.
The practical part describes the design of the mixing station. Here the design requirements are considered, and the mixing station is sized accordingly. The gas mixing station is designed for a certain output pressure and flow. The fuel lines are designed to be able to handle the fuel gases involved which are ammonia, hydrogen, petroleum, and natural gas. Several design options are presented, and the result is a design option for a gas mixing station that can be used for engine test cells with engines that are in the 500 – 4000 kilowatts power range.
In this thesis, the design of a gas mixing station for hydrogen, ammonia, petroleum, and natural gas is considered. Ammonia and hydrogen are carbon free fuels, which means no carbon dioxide emissions. However, since both pure ammonia and hydrogen have some deficiencies when combusting them it might be beneficial to mix them with other fuels, such as natural gas and petroleum gas.
The theoretical part of the thesis studies the ammonia, hydrogen, petroleum and natural gas fuel and the safety aspects involving them. How mixing the fuels affects these gases is also researched as well as the material and equipment considerations. Lastly, the method behind the design calculations is explained.
The practical part describes the design of the mixing station. Here the design requirements are considered, and the mixing station is sized accordingly. The gas mixing station is designed for a certain output pressure and flow. The fuel lines are designed to be able to handle the fuel gases involved which are ammonia, hydrogen, petroleum, and natural gas. Several design options are presented, and the result is a design option for a gas mixing station that can be used for engine test cells with engines that are in the 500 – 4000 kilowatts power range.