You are using an outdated browser. Please upgrade your browser to improve your experience.
Javascript is disabled in your web browser. For full functionality of this site it is necessary to enable JavaScript.
This website is using cookies.
We use them to give you the best experience. If you continue using our website, we'll assume that you are happy to receive all cookies on this website.
CPOTE2022 logo
7th International Conference on
Contemporary Problems of Thermal Engineering
Hybrid event, Warsaw | 20-23 September 2022

Abstract CPOTE2022-1022-A

Book of abstracts draft
slider slider slider slider slider slider

Economic analysis of a liquid hydrogen regasification cogeneration system

Jimena INCER VALVERDE, Technische Universitaet Berlin, Germany
Lyu YING, Technische Universität Berlin, Germany
Tatiana MOROSUK, Technical University of Berlin, Germany
George TSATSARONIS, Technische Universität Berlin, Germany

The efficient delivery of hydrogen is one of the main challenges of the hydrogen economy, currently under development. The trade of pure hydrogen on a large-scale and long-distance can be performed in liquid or gas form; both options have drawbacks. On the one hand, transporting hydrogen gas is energy-intensive and more thermodynamically efficient than liquid hydrogen, on the other hand, the low volumetric density and lack of infrastructure, such as hydrogen gas pipelines, makes it unrealistic in the short term. Therefore, transporting hydrogen long distances from countries with abundant renewable energy to countries where the demand is higher should be performed in liquid form (this does not exclude other hydrogen carriers, such as ammonia, methanol, and other LOHC). The liquid hydrogen should be kept at cryogenic temperatures ( -253 °C) during the whole transportation time. When the liquid hydrogen reaches the delivery port at the destiny location, it must be further regasified, similar to the current liquid natural gas chain. The hydrogen regasification from cryogenic temperatures to environmental temperature is associated with the use of a large amount of energy; therefore, the heat waste from the process can be integrated into a cogeneration power plant to take advantage of the temperature difference potential. This paper evaluates from an economic point of view one configuration for a large-scale cogeneration hydrogen regasification plant. The overall exergetic efficiency was calculated as 39 %, the hydrogen vaporizer accounts for most of the total investment and exergy destruction of the system. Therefore, special interest is paid to this component.

Keywords: Hydrogen regasification, Economic analysis, Cogeneration system, Cryogenic energy storage, Hydrogen economy