Solar hydrogen system for cooking applications: Experimental and numerical study

Abstract

This paper describes the development of a semi-empirical numerical model for a solar hydrogen system consisting of a Proton Exchange Membrane Electrolyser (PEM) powered by photovoltaic panels to produce hydrogen as fuel for cooking applications, focussing on Jamaica as a suitable case-study. The model was developed in TRNSYS and includes a novel numerical component based on FORTRAN to model the operation of the PEM electrolyser.The numerical component was developed based on operational data from a purpose constructed small-scale experimental rig. The numerical model was calibrated using data from the experimental rig powered by operational data from a photovoltaic panel system in the UK and predicted photovoltaic panel power data from Jamaica. For the test conditions, experiments indicated an electrolysis maximum efficiency of 63.6%. The calibrated model was used to develop a case study analysis for a small community in Jamaica with a daily cooking demand of 39.6 kWh or 1.7 kg of H 2 gas. Simulations indicate that the H 2 production plan is sufficient for the cooking needs of the case-study.

Modelling and simulation tool for off-grid PV-hydrogen energy system

“…Previous researchers have reported important numerical and experimental studies on the utilisation of renewable generated hydrogen for household cooking. (Topriska et al 2015) describes a numerical model developed in TRNSYS (Transient System Simulation Tool) for large-scale solar powered hydrogen production for domestic cooking in Jamaica. Their model took a holistic approach in developing a cooking demand profile by source, but most rural dwellers do not use LPG as they describe and this model may be more applicable to urban dwellers than the rural.…”

When more than money talks: Multi-criteria decision analysis of fuel cells for sustainable power supply in Sub-Saharan minigrids

“…As the common range of demand in such minigrids allows for a variety of power generation technologies to be integrated, fuel cells, converting hydrogen into electricity, have increasingly gained attention in the recent past [7]. Besides its use for power production, hydrogen can in addition be utilized as clean cooking fuel [8], as a motive fuel for mobility [9] or as a base substance in agricultural fertilizer [10], making hydrogen an all-round talent in the field of isolated minigrids. However, whilst research on the application of hydrogen technologies in isolated Global North settings are abundant -with common objects of investigation being single houses [11][12][13][14][15][16][17], small island or remote villages [18,19], industrial applications [20] or stand-alone systems which require uninterruptible power supply [21][22][23][24] -considerations for Global South minigrids still remain limited, both in number and scope.…”

Dynamic modeling and simulation of an integral bipropellant propulsion double-valve combined test system

“…The CV, used for constraining the fluid flow in only one direction and preventing reverse flow, is widely applied to various fluid systems including aerospace propulsion systems [1,[3][4][5][6][7][8][9], electronic equipment [2], nuclear reactor systems [24][25][26], compressor station systems [27], mechanical system [28], oil or gas pipeline systems [29], heating, ventilation and air-conditioning (HVAC) systems [30][31][32][33][34], microfluidic systems [35,36] and so on. McElhaney [24] and Xu et al [25] classify the check valves applied in the nuclear industry into swing type, lift type, tilting disc type, double discs type, stop type, nozzle type and so on.…”

“…For the problem, they conduct simulation research and the results show that 24997.2 kWh (6.77%) total energy of the chilled water system can be saved when the operation of the chilled water system suffered from the 20% air-side fouling and a bypass CV was used, as compared to that without using the bypass CV in the same condition. The TRNSYS simulation software [32][33][34] on which the research of Ma and Wang [31] is based has been widely applied to such fields as HVAC systems after more than three decades of development. Its modeling idea is the same as the abovementioned idea, that is, using 1D or even 0D simplified model for system-level modeling and simulation.…”