Design of stationary PEFC system configurations to meet heat and power demands
2002 (English)In: Journal of Power Sources, ISSN 0378-7753, Vol. 106, no 02-jan, 83-92 p.Article in journal (Refereed) Published
This paper presents heat and power efficiencies of a modeled PEFC system and the methods used to create the system configuration. The paper also includes an example of a simulated fuel cell system supplying a building in Sweden with heat and power. The main method used to create an applicable fuel cell system configuration is pinch technology. This technology is used to evaluate and design a heat exchanger a PEFC system working under stationary conditions, in order to find a solution with high heat utilization. The heat exchanger network for network in the system connecting the reformer, the burner, gas cleaning, hot-water storage and the PEFC stack will affect the heat transferred to the hot-water storage and thereby the heating of the building. The fuel, natural gas, is reformed to a hydrogen-rich gas within a slightly pressurized system. The fuel processor investigated is steam reforming, followed by high- and low-temperature shift reactors and preferential oxidation. The system is connected to the electrical grid for backup and peak demands and to a hot-water storage to meet the varying heat demand for the building. The procedure for designing the fuel cell system installation as co-generation system is described, and the system is simulated for a specific building in Sweden during I year. The results show that the fuel cell system in combination with a burner and hotwater storage could supply the building with the required heat without exceeding any of the given limitations. The designed co-generation system will provide the building with most of its power requirements and would further generate income by sale of electricity to the power grid.
Place, publisher, year, edition, pages
2002. Vol. 106, no 02-jan, 83-92 p.
PEFC system, natural gas reforming, pinch technology, heat and power demands, fuel-cell, optimization, performance, model
IdentifiersURN: urn:nbn:se:kth:diva-21510ISI: 000175342800013OAI: oai:DiVA.org:kth-21510DiVA: diva2:340208
QC 20100525 NR 201408042010-08-102010-08-102012-02-09Bibliographically approved