Experimental assessment of thin film high pressure metal hydride material properties

Corgnale, Claudio; Hattrick‐Simpers, Jason; Sulic, Martin; Weidner, John W.; Lopata, Joseph Steven

doi:10.1016/j.ijhydene.2018.08.025

Cited by 6 publications

(2 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The HP1 material is characterized by significant hysteresis and sloped plateaus at the temperature and pressure range of interest [3,15,17]. Even if the material is characterized by excellent operating pressures and temperatures, it cannot be adopted for an effective high-pressure hydrogen compression system.…”

Section: Initial Downselected Materialsmentioning

confidence: 99%

Techno-Economic Analysis of High-Pressure Metal Hydride Compression Systems

Corgnale¹,

Sulic²

2018

Metals

Self Cite

View full text Add to dashboard Cite

Traditional high-pressure mechanical compressors account for over half of the car station's cost, have insufficient reliability, and are not feasible for a large-scale fuel cell market. An alternative technology, employing a two-stage, hybrid system based on electrochemical and metal hydride compression technologies, represents an excellent alternative to conventional compressors. The high-pressure stage, operating at 100-875 bar, is based on a metal hydride thermal system. A techno-economic analysis of the metal hydride system is presented and discussed. A model of the metal hydride system was developed, integrating a lumped parameter mass and energy balance model with an economic model. A novel metal hydride heat exchanger configuration is also presented, based on minichannel heat transfer systems, allowing for effective high-pressure compression. Several metal hydrides were analyzed and screened, demonstrating that one selected material, namely (Ti 0.97 Zr 0.03 ) 1.1 Cr 1.6 Mn 0.4 , is likely the best candidate material to be employed for high-pressure compressors under the specific conditions. System efficiency and costs were assessed based on the properties of currently available materials at industrial levels. Results show that the system can reach pressures on the order of 875 bar with thermal power provided at approximately 150 • C. The system cost is comparable with the current mechanical compressors and can be reduced in several ways as discussed in the paper.

show abstract

Section: Initial Downselected Materialsmentioning

confidence: 99%

Techno-Economic Analysis of High-Pressure Metal Hydride Compression Systems

Corgnale¹,

Sulic²

2018

Metals

Self Cite

View full text Add to dashboard Cite

show abstract

“…The second phase (C15) is known to provide higher equilibrium pressures than the C14 phase, as highlighted for many AB 2 materials, e.g. for the TiCr 1.9 (C14 phase) and TiCr 1.8 (C15 phase) materials [26][27][28][29]. Hydrogen absorption pressure-concentration profiles for three operating temperatures are also shown in figure 10 and compared with the corresponding profiles of the JMC material.…”

Section: Metal Hydride Characterization Resultsmentioning

confidence: 97%

High pressure thermal hydrogen compression employing Ti_1.1CrMn metal hydride material

Corgnale¹,

Sulic²

2019

J. Phys. Energy

Self Cite

View full text Add to dashboard Cite

The use of Ti 1.1 CrMn metal hydride material in a thermal hydrogen compression system is investigated. The thermodynamic properties of the material, initially synthesized and annealed at 900°C for 48 h (for quantities on the order of 10 kg), are assessed performing pressureconcentration-temperature equilibrium tests for hydrogen absorption and desorption at pressure up to about 900 bar. Results show flat plateaus and reduced hysteresis. The calculated absorption enthalpy and entropy are 20.55 ± 0.13 kJ mol H2 1 and 102.16±3.00 J mol H2 1 -K −1 respectively. The desorption enthalpy and entropy are 22.89±0.45 kJ mol H2 1 and 107.80±10.45 J mol H2 1 -K −1 , respectively. The metal hydride achieves a weight capacity of approximately 1.8% at room temperature and maintain an approximately constant weight capacity during the cycling testing. This makes the material a suitable candidate for high pressure hydrogen compressors, achieving pressures on the order of 450 bar at temperatures of approximately 140°C. The same material composition is synthesized at laboratory scale quantities (on the order of 50 g), applying a modified annealing procedure (1200°C for 240 h). This allows higher operating pressures to be achieved, but the modified annealing process also produces (at least) an additional phase, namely the C15 Laves phase, present in the material along with the C14 Laves phase. Consequently, two pressure plateaus are present at each operating temperature, reducing the effective material weight capacity available for the compression application. A two-stage hybrid compressor concept is also presented, with the thermal hydride compressor paired with a lower pressure electrochemical unit. In principle, the system can compress hydrogen with a compression ratio of 45 from 10 to 450 bar without any external thermal input and recovering the electrochemical unit waste heat to drive the thermal stage.

show abstract

Thermal Hydrogen Compression Based on Metal Hydride Materials

Corgnale¹,

BowmanJr.²,

Motyka³

2021

Advances in Sustainable Energy

View full text Add to dashboard Cite

Experimental assessment of thin film high pressure metal hydride material properties

Cited by 6 publications

References 27 publications

Techno-Economic Analysis of High-Pressure Metal Hydride Compression Systems

Techno-Economic Analysis of High-Pressure Metal Hydride Compression Systems

High pressure thermal hydrogen compression employing Ti_1.1CrMn metal hydride material

Thermal Hydrogen Compression Based on Metal Hydride Materials

Contact Info

Product

Resources

About

Experimental assessment of thin film high pressure metal hydride material properties

Cited by 6 publications

References 27 publications

Techno-Economic Analysis of High-Pressure Metal Hydride Compression Systems

Techno-Economic Analysis of High-Pressure Metal Hydride Compression Systems

High pressure thermal hydrogen compression employing Ti1.1CrMn metal hydride material

Thermal Hydrogen Compression Based on Metal Hydride Materials

Contact Info

Product

Resources

About

High pressure thermal hydrogen compression employing Ti_1.1CrMn metal hydride material