Energy-saving effect of a residential polymer electrolyte fuel cell cogeneration system combined with a plug-in hybrid electric vehicle

Abstract The energy-saving effect of a residential polymer electrolyte fuel cell cogeneration system (PEFC-CGS) that adopts a daily start–stop operation with no reverse power flow, combined with a plug-in hybrid electric vehicle (PHEV) is analyzed by optimal operational planning model based on mixed-integer linear programming. This combined use aims to increase the electric capacity factor of the PEFC-CGS by charging the PHEV using the PEFC-CGS output late at night, and targets the application in regions where the reverse power flow from residential cogeneration systems to commercial electric power systems is not permitted, like in Japan. First, the optimal operational planning model that incorporates the daily start–stop operation of the PEFC-CGS is developed. The energy-saving effect of the combined use of the PEFC-CGS and PHEV is then analyzed on the basis of observations of the optimal operation patterns for a 0.75-kWe PEFC-CGS, a simulated energy demand with a sampling time of 5 min, and various daily running distances of the PHEV. The results show that the combined use of the PEFC-CGS and PHEV increases the electric capacity factor and hot water supply rate of the PEFC-CGS and saves more energy in comparison with their separate use in which the PEFC-CGS is used but the PHEV is charged only using purchased electric power. Consequently, this feasibility study reveals that the combined use of the PEFC-CGS and PHEV provides the synergistic effect on energy savings in the residential and transport sectors.

[1]  Adam Hawkes,et al.  Fuel cell micro-CHP techno-economics: Part 1- model concept and formulation , 2009 .

[2]  A. Murata,et al.  Fuel cells and energy networks of electricity, heat, and hydrogen in residential areas , 2006 .

[3]  Jian Liu,et al.  Electric vehicle charging infrastructure assignment and power grid impacts assessment in Beijing , 2012 .

[4]  Christopher Blauth,et al.  Data, data, data… , 2007, International journal of clinical practice.

[5]  José María Sala,et al.  Implications of the modelling of stratified hot water storage tanks in the simulation of CHP plants , 2011 .

[6]  Richard E. Rosenthal,et al.  GAMS -- A User's Guide , 2004 .

[7]  Ryohei Yokoyama,et al.  Feasibility study on combined use of residential SOFC cogeneration system and plug-in hybrid electric vehicle from energy-saving viewpoint , 2012 .

[8]  F. A. Amoroso,et al.  Advantages of efficiency-aware smart charging strategies for PEVs , 2012 .

[9]  Thomas H. Bradley,et al.  Design, demonstrations and sustainability impact assessments for plug-in hybrid electric vehicles , 2009 .

[10]  Craig H Stephan,et al.  Environmental and energy implications of plug-in hybrid-electric vehicles. , 2008, Environmental science & technology.

[11]  Iain Staffell,et al.  Cost targets for domestic fuel cell CHP , 2008 .

[12]  Adam Hawkes,et al.  Fuel cell micro-CHP techno-economics: Part 2-Model application to consider the economic and environmental impact of stack degradation , 2009 .

[13]  Ryohei Yokoyama,et al.  Suitable operational strategy for power interchange operation using multiple residential SOFC (solid oxide fuel cell) cogeneration systems , 2010 .

[14]  Kazushige Maeda,et al.  A study on energy saving in residential PEFC cogeneration systems , 2010 .

[15]  Riccardo Fagiani,et al.  Cost and emissions impacts of plug-in hybrid vehicles on the Ohio power system , 2010 .

[16]  D Mertens,et al.  Micro-CHP systems for residential applications , 2006 .

[17]  Viktor Dorer,et al.  Performance assessment of fuel cell micro-cogeneration systems for residential buildings , 2005 .

[18]  Yasuo Suzuoki,et al.  A study of a micro co‐generation system's conformation for residential use considering observed fluctuating characteristics of hot‐water demand , 2003 .

[19]  Tim Brown,et al.  Emissions impacts of plug-in hybrid electric vehicle deployment on the U.S. western grid , 2010 .

[20]  Alex Ferguson,et al.  Fuel cell modelling for building cogeneration applications , 2004 .

[21]  Marc Ross,et al.  Evaluation of energy consumption, emissions and cost of plug-in hybrid vehicles , 2009 .

[22]  Willett Kempton,et al.  Vehicle-to-grid power fundamentals: Calculating capacity and net revenue , 2005 .

[23]  Laura Vanoli,et al.  Micro-combined heat and power in residential and light commercial applications , 2003 .

[24]  Ryohei Yokoyama,et al.  Effect of power interchange operation of multiple household gas engine cogeneration systems on energy-saving , 2009 .

[25]  Viktor Dorer,et al.  Energy and CO2 emissions performance assessment of residential micro-cogeneration systems with dynamic whole-building simulation programs , 2009 .

[26]  Ryohei Yokoyama,et al.  Performance analysis of a CO2 heat pump water heating system under a daily change in a standardized demand , 2010 .

[27]  J. Driesen,et al.  The Impact of Charging Plug-In Hybrid Electric Vehicles on a Residential Distribution Grid , 2010, IEEE Transactions on Power Systems.