US 2014/0207387 A1Published application

Method of analyzing numeric model for metal hydride tank

AssigneeKorea Institute of Geoscience and Mineral Resources

InventorsSung-Wook CHO, Han-Jung KWON, Jeong-Hyun YOO, Ji-Woong KIM, Kyung-Woo YI, Sang-Kun O

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Abstract

A method of analyzing a numeric model for a metal hydride tank, which calculates the temperature change and the change of a reaction rate and the hydrogen concentration in the alloy resulting from a hydrogen reaction based on various user conditions with respect to metal hydride (MH) alloy tanks having various shapes when MH alloy tanks are actually used. The method includes (a) inputting a temperature (T), a real reaction flow rate (QR), and an initial data value of hydrogen concentration (C) for each cell of a model, (b) calculating a possible reaction rate (RP) depending on the temperature (T) and the hydrogen concentration (C) in the metal hydride alloy with respect to each cell, (c) calculating a possible flow rate (QP) with respect to an entire MH alloy region, and (d) calculating a k between the real reaction flow rate (QR) and the possible reaction flow rate (QP).

Claims10

Dependent claims

A method of analyzing a numeric model for a metal hydride tank, the method comprising:

(a) inputting a temperature (T), a real reaction flow rate (QR) restricted through user specification, and an initial data value of hydrogen concentration (C) in a metal hydride alloy for each cell of a model;
(b) calculating a possible reaction rate (RP) depending on the temperature (T) and the hydrogen concentration (C) in the metal hydride alloy for each cell of the model;
(c) calculating a possible reaction flow rate (QP) for the entire MH alloy region of the model;
(d) calculating a k (rate factor) value which is a ratio between the real reaction flow rate (QR) and the possible reaction flow rate (QP);
(e) calculating a new real reaction flow rate (QR) through QR=kQP;
(f) calculating a real reaction rate (RR) in each cell through RR=kRP;
(g) calculating hydrogen concentration (C) in the MH alloy;
(h) calculating change of the temperature (T) resulting from heat of reaction depending on the real reaction rate (RR);
and
(i) repeatedly performing calculating of step (b) to step (h) according to a period and a time interval required to be analyzed.

7 more elements

Dependencies are inferred from the claim text.