A case study of a hydride container performance applying non dimensional parameters

Silin, N.; Melnichuk, Maximiliano

doi:10.1016/j.ijhydene.2014.10.027

Cited by 5 publications

(5 citation statements)

References 13 publications

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“…With these new parameters, desorption reaction time can be estimated following the same procedure as for absorption process, replacing equations ( 7) and ( 8) of [31] by the following equivalent equations:…”

Section: Discussionmentioning

confidence: 99%

“…For the latter case there is a second calculation where reaction time can be readily estimated according to non-dimensional parameters that consider the heat produced during absorption reaction and the heat that the system can dissipate. The expected accuracy of the method is about 20% [31], which is enough to determine reaction time of our experimental set-up.…”

Section: Reaction Time Estimationmentioning

confidence: 97%

“…Table AI indicates common values of the parameters used for calculations according to the method presented in Ref. [31], and Table AII shows results for absorption and desorption processes under the named pressure conditions.…”

Section: Annex Amentioning

confidence: 99%

“…The non-dimensional method taken from our previous study [31] is defined for absorption process, but we also use it to estimate the desorption time by doing the following assumptions: i) LaNi 5 kinetics and enthalpy change for absorption and desorption processes are comparable, ii) the parameter T ext has its correspondent P eq value according to Van't Hoff equation. The same equivalence occurs between system pressure P g and the maximum temperature T max that an isolated system could reach with the hydride absorbing at that pressure.…”

Section: Annex Amentioning

confidence: 99%

See 3 more Smart Citations

LaNi 5 hydride powder flowability as a function of activation and hydrogen content

Melnichuk

Cuscueta

Silin

2017

International Journal of Hydrogen Energy

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Section: Discussionmentioning

confidence: 99%

Section: Reaction Time Estimationmentioning

confidence: 97%

Section: Annex Amentioning

confidence: 99%

Section: Annex Amentioning

confidence: 99%

See 2 more Smart Citations

LaNi 5 hydride powder flowability as a function of activation and hydrogen content

Melnichuk

Cuscueta

Silin

2017

International Journal of Hydrogen Energy

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“…However, it is also possible to gain a low-grade cooling effect that operates at only 10-30 • C below the mean temperature level. Research efforts have been made to tackle the drawback by advancing the MHHP reactor design and configuration [58][59][60][61]. Nonetheless, the prevention of thermal energy dissipation into the ambient environment is still challenging; thus, the overall useful amount of produced thermal effect is always lower than the theoretical expectations stated in Equation ( 3).…”

Section: A Metal Hydride Thermal Conversion System With Superadiabati...mentioning

confidence: 99%

A Numerical Study for Performance Prediction of a Metal Hydride Thermal Energy Conversion System Elaborating the Superadiabatic Condition

2020

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In this study, we investigate a numerical-modeling method uniquely performing analyses of 50 different metal hydrides to find the optimized thermal effect. This paper presents a metal-hydride thermal energy conversion method, which offers an alternative approach to the traditional vapor-compression heat pump associated with conventional heating, ventilation, and air conditioning (HVAC). The authors have developed an innovative heat pump applicable to non-vapor compression-based systems, which are in compliance with low-temperature heat source requirements for operation. The new heat pump has a high-energy savings potential for both heating and cooling that featured two different metal-hydrides, that are distributed inside parallel channels filled with porous media. Thermal energy conversion is developed as a set of successive thermal waves. The numerical-modeling results present the enhanced thermal effect, which is attained in a synchronous motion of the thermal waves and the heat source (or sink) inside paired porous media channels, which accompanies the phase transition in the succession of unit metal-hydride heat pumps. The results present in a form convenient for the prediction of thermal energy efficiency based on the proposed thermal-conversion method in real devices that were experimentally verified in previous work. The non-vapor technologies will be operational with low energy input, which makes it possible to utilize waste heat or low-level heat often found in the environment such as solar radiation, exhaust gas from a heat engine, or high-temperature fuel cell system.

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Design and performance simulation of the spiral mini-channel reactor during H2 absorption

Wang

et al. 2015

International Journal of Hydrogen Energy

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A case study of a hydride container performance applying non dimensional parameters

Cited by 5 publications

References 13 publications

LaNi 5 hydride powder flowability as a function of activation and hydrogen content

LaNi 5 hydride powder flowability as a function of activation and hydrogen content

A Numerical Study for Performance Prediction of a Metal Hydride Thermal Energy Conversion System Elaborating the Superadiabatic Condition

Design and performance simulation of the spiral mini-channel reactor during H2 absorption

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