Implementation of a Fuel Cell System Model Into Building Energy Simulation Software IDA-ICE

[+] Author and Article Information
Teemu Vesanen

 VTT Technical Research Centre of Finland, 02044 VTT, Finlandteemu.vesanen@vtt.fi

Krzysztof Klobut

 VTT Technical Research Centre of Finland, 02044 VTT, Finlandkrzysztof.klobut@vtt.fi

Jari Shemeikka

 VTT Technical Research Centre of Finland, 02044 VTT, Finlandjari.shemeikka@vtt.fi

J. Fuel Cell Sci. Technol 4(4), 511-515 (Jun 07, 2006) (5 pages) doi:10.1115/1.2759510 History: Received November 28, 2005; Revised June 07, 2006

Due to constantly increasing electricity consumption, networks are becoming overloaded and unstable. Decentralization of power generation using small-scale local cogeneration plants becomes an interesting option to improve economy and energy reliability of buildings in terms of both electricity and heat. It is expected that stationary applications in buildings will be one of the most important fields for fuel cell systems. In northern countries, like Finland, efficient utilization of heat from fuel cells is feasible. Even though the development of some fuel cell systems has already progressed to a field trial stage, relatively little is known about the interaction of fuel cells with building energy systems during a dynamic operation. This issue could be addressed using simulation techniques, but there has been a lack of adequate simulation models. International cooperation under IEA/ECBCS/Annex 42 aims at filling this gap, and the study presented in this paper is part of this effort. Our objective was to provide the means for studying the interaction between a building and a fuel cell system by incorporating a realistic fuel cell model into a building energy simulation. A two-part model for a solid-oxide fuel cell system has been developed. One part is a simplified model of the fuel cell itself. The other part is a system level model, in which a control volume boundary is assumed around a fuel cell power module and the interior of it is regarded as a “black box.” The system level model has been developed based on a specification defined within Annex 42. The cell model (programed in a spreadsheet) provides a link between inputs and outputs of the black box in the system model. This approach allows easy modifications whenever needed. The system level model has been incorporated into the building simulation tool IDA-ICE (Indoor Climate and Energy) using the neutral model format language. The first phase of model implementation has been completed. In the next phase, model validation will continue. The final goal is to create a comprehensive but flexible model, which could serve as a reliable tool to simulate the operation of different fuel cell systems in different buildings.

Copyright © 2007 by American Society of Mechanical Engineers
Your Session has timed out. Please sign back in to continue.



Grahic Jump Location
Figure 1

Configuration of the implemented model (3)

Grahic Jump Location
Figure 2

Calculated cell voltage as a function of current density (3)

Grahic Jump Location
Figure 3

Theoretical cell voltage as a function of current density (6)

Grahic Jump Location
Figure 4

System model diagram according to the Annex 42 specification (8)

Grahic Jump Location
Figure 5

A sample from the interprogram comparative tests




Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In