TY - JOUR
T1 - Fuel cell electric vehicle as a power plant and SOFC as a natural gas reformer
T2 - An exergy analysis of different system designs
AU - Fernandes, A.
AU - Woudstra, T.
AU - van Wijk, A.
AU - Verhoef, L.
AU - Purushothaman Vellayani, A.
PY - 2016
Y1 - 2016
N2 - Delft University of Technology, under its "Green Village" programme, has an initiative to build a power plant (car parking lot) based on the fuel cells used in vehicles for motive power. It is a trigeneration system capable of producing electricity, heat, and hydrogen. It comprises three main zones: a hydrogen production zone, a parking zone, and a pump station zone. This study focuses mainly on the hydrogen production zone which assesses four different system designs in two different operation modes of the facility: Car as Power Plant (CaPP) mode, corresponding to the open period of the facility which uses fuel cell electric vehicles (FCEVs) as energy and water producers while parked; and Pump mode, corresponding to the closed period which compresses the hydrogen and pumps to the vehicle's fuel tank. These system designs differ by the reforming technology: the existing catalytic reformer (CR) and a solid oxide fuel cell operating as reformer (SOFCR); and the option of integrating a carbon capture and storage (CCS).Results reveal that the SOFCR unit significantly reduces the exergy destruction resulting in an improvement of efficiency over 20% in SOFCR-based system designs compared to CR-based system designs in both operation modes. It also mitigates the reduction in system efficiency by integration of a CCS unit, achieving a value of 2% whereas, in CR-based systems, is 7-8%. The SOFCR-based system running in Pump mode achieves a trigeneration efficiency of 60%.
AB - Delft University of Technology, under its "Green Village" programme, has an initiative to build a power plant (car parking lot) based on the fuel cells used in vehicles for motive power. It is a trigeneration system capable of producing electricity, heat, and hydrogen. It comprises three main zones: a hydrogen production zone, a parking zone, and a pump station zone. This study focuses mainly on the hydrogen production zone which assesses four different system designs in two different operation modes of the facility: Car as Power Plant (CaPP) mode, corresponding to the open period of the facility which uses fuel cell electric vehicles (FCEVs) as energy and water producers while parked; and Pump mode, corresponding to the closed period which compresses the hydrogen and pumps to the vehicle's fuel tank. These system designs differ by the reforming technology: the existing catalytic reformer (CR) and a solid oxide fuel cell operating as reformer (SOFCR); and the option of integrating a carbon capture and storage (CCS).Results reveal that the SOFCR unit significantly reduces the exergy destruction resulting in an improvement of efficiency over 20% in SOFCR-based system designs compared to CR-based system designs in both operation modes. It also mitigates the reduction in system efficiency by integration of a CCS unit, achieving a value of 2% whereas, in CR-based systems, is 7-8%. The SOFCR-based system running in Pump mode achieves a trigeneration efficiency of 60%.
KW - Exergy
KW - Reforming
KW - SOFC
KW - Trigeneration
KW - Vehicle-to-grid (V2G)
UR - http://www.scopus.com/inward/record.url?scp=84962683330&partnerID=8YFLogxK
UR - http://resolver.tudelft.nl/uuid:b9f707ef-f669-424d-a224-d3e0f2fc48ad
UR - http://resolver.tudelft.nl/uuid:b9f707ef-f669-424d-a224-d3e0f2fc48ad
U2 - 10.1016/j.apenergy.2016.03.107
DO - 10.1016/j.apenergy.2016.03.107
M3 - Article
AN - SCOPUS:84962683330
SN - 0306-2619
VL - 173
SP - 13
EP - 28
JO - Applied Energy
JF - Applied Energy
ER -