TY - JOUR
T1 - Pre-cooling systems for hydrogen fueling stations
T2 - Techno-economic analysis for scaled enactment
AU - Sadiq, Muhammad
AU - Saeed, Muhammed
AU - Mayyas, Ahmad
AU - Mezher, Toufic
AU - El Fadel, Mutasem
N1 - Publisher Copyright:
© 2023 The Author(s)
PY - 2023/4
Y1 - 2023/4
N2 - Hydrogen fueling standards stipulates a sustainable cooling system technically and economically. Accordingly, the interior surface temperature of the on-board H2 storage tank in fuel cell electric vehicles must not exceed the maximum specified limit (358.15 K), and the fueling rate must be ≤ 42.86 sec / kg-H2, with T40 dispenser at 70 MPa. In this context, H2 refueling stations often employ double-tube and block heat exchangers for heat transfer. This study examines the H2 pre-cooling system for various loads and provides a comparative techno-economic analysis of double tube heat exchangers (DTHE) and microchannel heat exchangers (MCHE) under stipulated technical, operational, and outlet gas standards. For this purpose, thermal and hydraulic performances were simulated using ANSYS-CFX. Technical and cost models utilize manufacturer specifications and literature-based technical and economic characteristics to derive the minimum sustainable price, defined as the price to sustain the product. The results showed that the MCHE outperformed the DTHE for setups in mass manufacturing, improved effective heat transfer area, and predicted long term unit cost. The annual quantitative output affects manufacturing expenses and profit margins substantially. With high production rates, it is expected that the unit cost of the MCHE will decrease by up to 74%. In switching from DTHE to MCHE, general material requirements decreased by ∼60%, with scrap waste savings of ∼45% reflecting an appreciable footprint reduction.
AB - Hydrogen fueling standards stipulates a sustainable cooling system technically and economically. Accordingly, the interior surface temperature of the on-board H2 storage tank in fuel cell electric vehicles must not exceed the maximum specified limit (358.15 K), and the fueling rate must be ≤ 42.86 sec / kg-H2, with T40 dispenser at 70 MPa. In this context, H2 refueling stations often employ double-tube and block heat exchangers for heat transfer. This study examines the H2 pre-cooling system for various loads and provides a comparative techno-economic analysis of double tube heat exchangers (DTHE) and microchannel heat exchangers (MCHE) under stipulated technical, operational, and outlet gas standards. For this purpose, thermal and hydraulic performances were simulated using ANSYS-CFX. Technical and cost models utilize manufacturer specifications and literature-based technical and economic characteristics to derive the minimum sustainable price, defined as the price to sustain the product. The results showed that the MCHE outperformed the DTHE for setups in mass manufacturing, improved effective heat transfer area, and predicted long term unit cost. The annual quantitative output affects manufacturing expenses and profit margins substantially. With high production rates, it is expected that the unit cost of the MCHE will decrease by up to 74%. In switching from DTHE to MCHE, general material requirements decreased by ∼60%, with scrap waste savings of ∼45% reflecting an appreciable footprint reduction.
KW - Double tube heat exchangers (DTHE)
KW - H refueling stations (HRS)
KW - Microchannel heat exchangers (MCHE)
KW - Pre-cooling system
KW - Techno-economic analysis
UR - https://www.scopus.com/pages/publications/85150258722
U2 - 10.1016/j.ecmx.2023.100369
DO - 10.1016/j.ecmx.2023.100369
M3 - Article
AN - SCOPUS:85150258722
SN - 2590-1745
VL - 18
JO - Energy Conversion and Management: X
JF - Energy Conversion and Management: X
M1 - 100369
ER -
