Version 1
: Received: 20 February 2024 / Approved: 21 February 2024 / Online: 21 February 2024 (10:53:48 CET)
Version 2
: Received: 24 April 2024 / Approved: 25 April 2024 / Online: 25 April 2024 (10:39:10 CEST)
Franco, A.; Giovannini, C. Hydrogen Gas Compression for Efficient Storage: Balancing Energy and Increasing Density. Hydrogen2024, 5, 293-311.
Franco, A.; Giovannini, C. Hydrogen Gas Compression for Efficient Storage: Balancing Energy and Increasing Density. Hydrogen 2024, 5, 293-311.
Franco, A.; Giovannini, C. Hydrogen Gas Compression for Efficient Storage: Balancing Energy and Increasing Density. Hydrogen2024, 5, 293-311.
Franco, A.; Giovannini, C. Hydrogen Gas Compression for Efficient Storage: Balancing Energy and Increasing Density. Hydrogen 2024, 5, 293-311.
Abstract
The article delves into the crucial realm of compressing hydrogen in its gaseous state, a pivotal process for enhancing its viability in both civil and industrial sectors. The study initiates by providing a concise overview and comparison of diverse hydrogen storage methodologies, laying the groundwork with an in-depth analysis of hydrogen's thermophysical properties. It scrutinizes plausible configurations for hydrogen compression, aiming to strike a delicate balance between energy consumption, predominantly derived from the fuel itself, and the requisite number of compression stages. Notably, to render hydrogen storage competitive in terms of volume, pressures of at least 350 bar are deemed essential, albeit at an energy cost amounting to approximately 10% of the fuel's calorific value. Multi-stage compression emerges as a crucial strategy, not solely for energy efficiency, but also to curtail temperature rise, with an upper limit set at 200°C. This nuanced approach is underlined by the exploration of compression levels commonly cited in the literature, particularly 350 bar and 700 bar. Ultimately, the study advocates for a three-stage compression system as a pragmatic compromise, capable of achieving high-pressure solutions while keeping compression work below 10 MJ/kg, a threshold indicative of sustainable energy utilization.
Keywords
Hydrogen storage; Gaseous Compression; Multi-Stage Configuration; Energy analysis; Efficiency
Subject
Engineering, Energy and Fuel Technology
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.