Electrical model of the alkaline electrolyser dedicated for SPICE

Abstract

In this paper, properties of the alkaline electrolyser fed from the voltage source, producing the rectangular pulse train, were investigated. A model of this electrolyser for SPICE in the form of an electrical network was proposed. The structure of this electrical model was described, and the values of parameters of the model were presented. The correctness of this model was verified experimentally in a wide range of frequency. Using the worked out model, several characteristics of the electrolyser were calculated, and the influence of amplitude, frequency, and the duty factor of the supplying voltage on productivity and watt-hour efficiency of the electrolysis process was discussed. The investigations were performed for 2 different concentration values of the KOH solution.

Modelling characteristics of the impulse transformer in a wide frequency range

“…In the analysis and design of electronic circuits, computer simulations are used, which require computer models of all components of the analysed system that are commonly used. 1,[4][5][6][7] These models should take into account all relevant phenomena occurring in each of these components, and at the same time, they should be simple enough to enable fast results of computations. Therefore, in the literature, many models of electronic components are described.…”

A hierarchically encapsulated phase-change film with multi-stage heat management properties and conformable self-interfacing contacts for enhanced interface heat dissipation

“…1–3 World-wide efforts have been made to make electronic devices and systems achieve high computing speed, increased integration densities, and smaller and thinner appearance for decades. 4–6 Integration upgrades lead to sharply increased power densities and internal heat fluxes, which puts forward a higher demand on the timely dissipation of excess heat from hot spots to the external environment. 7,8 Thermal interface materials (TIMs) applied between heat sources and radiators with substantially higher thermal conductivity are essential components of passive heat management in various electronic devices.…”

Modelling Properties of an Alkaline Electrolyser

“…In the literature, one can find many models describing the properties of electrolysers [2,5,13,[19][20][21][22][23], but typically they are dedicated to describe the properties of these devices operating at the power supply from the source of dc voltage. More detailed descriptions of the properties of the electrolyser models are summarised in [24].…”

“…Meanwhile, as it was shown in the authors' previous papers [6,[24][25][26], while power supplying the electrolyser with a rectangular pulse train of regulated frequency, it is possible to optimise its productivity or efficiency by selecting the frequency of feeding impulses. Unfortunately, the models of electrolysers presented in the literature do not take into account such factors as the concentration of KOH solution in the electrolyser and the nonlinearities of the phenomena occurring in this electrolyser at changes in the value of the current of the power supply.…”

“…In the authors' previous papers [6,24,25], an electrical model of the electrolyser was proposed. This model has the form of a subcircuit for the simulation program with integrated circuit emphasis (SPICE) software.…”