Ebell N, Bott A, Beck T, Bürner J, Praß J, Franke J (2017)
Publication Language: English
Publication Type: Journal article
Publication year: 2017
Publisher: Trans Tech Publications
Book Volume: 871
Pages Range: 11--19
URI: https://www.scientific.net/Paper/Preview/525041
DOI: 10.4028/WWW.SCIENTIFIC.NET/AMM.871.11
In the field of energy supply for residential and commercial buildings, the optimal operation,
system configuration and sizing of generation as well as storage technologies are essential steps for cost-efficient investments. In current research, flexibility options for electricity from growing renewable energies attract attention. One of the considered options is the power-to-gas technology in combination with fuel cells. Linear Programs for optimal system operation exist for example for distributed energy systems. In this study we propose a Mixed Integer Linear Program of a power-to-gas unit consisting of an electrolyzer, a fuel cell and a hydrogen storage. For the fuel cell a minimum load and a non-linear efficiency curve is taken into account. The non-linear efficiency curve is approximated by piecewise linearization. Bilinear products in the modeling of the efficiency curve are being substituted to maintain full power plant sizing and operation functionality. Different fuels, such as natural gas and hydrogen to be converted in the fuel cell, are implemented as well. As a result, we show that a detailed model of the non-linear efficiency curve of a fuel cell leads to more accurate results concerning the system operation. The configuration of system components in the observed energy system changes. Especially the battery system experiences a change in sizing and operation. However, solving time of the model is increasing dramatically. Our results demonstrate a valuable approach to compare the results of a Linear Program to a Mixed Integer Linear Program. Hence giving the possibility to evaluate the necessity of detailed over simplified models regarding calculation of cost-effectiveness.
APA:
Ebell, N., Bott, A., Beck, T., Bürner, J., Praß, J., & Franke, J. (2017). Model of a Power-to-Gas System with Fuel Cell in a Mixed Integer Linear Program for the Energy Supply of Residential and Commercial Buildings. Applied Mechanics and Materials, 871, 11--19. https://dx.doi.org/10.4028/WWW.SCIENTIFIC.NET/AMM.871.11
MLA:
Ebell, Niklas, et al. "Model of a Power-to-Gas System with Fuel Cell in a Mixed Integer Linear Program for the Energy Supply of Residential and Commercial Buildings." Applied Mechanics and Materials 871 (2017): 11--19.
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