The characteristics of regenerative energy for PEMFC hybrid system with additional generator

Kim, Byeong Heon; Kwon, Oh Jung; Song, Jun; Cheon, Seung Ho; Oh, Byeong Soo

doi:10.1016/j.ijhydene.2014.03.200

Cited by 13 publications

(4 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Matsuura et al reported a fuel cell degradation rate of

e^{prefix- 5} \frac{V}{h}

for 2,700 h life test of the single fuel cell at 300 mA/cm. In this study, we have used the

3.65 \times e^{prefix- 5} \frac{V}{h}

voltage degradation rate .…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Realistic simulation of fuel economy and life cycle metrics for hydrogen fuel cell vehicles

Ahmadi

Kjeang

2016

Int. J. Energy Res.

View full text Add to dashboard Cite

Summary The present work contributes an engineered life cycle assessment (LCA) of hydrogen fuel cell passenger vehicles based on a real‐world driving cycle for semi‐urban driving conditions. A new customized LCA tool is developed for the comparison of conventional gasoline and hydrogen fuel cell vehicles (FCVs), which utilizes a dynamic vehicle simulation approach to calculate realistic, fundamental science based fuel economy data from actual drive cycles, vehicle specifications, road grade, engine performance, fuel cell degradation effects, and regenerative braking. The total greenhouse gas (GHG) emission and life cycle cost of the vehicles are compared for the case of hydrogen production by electrolysis in British Columbia, Canada. A 72% reduction in total GHG emission is obtained for switching from gasoline vehicles to FCVs. While fuel cell performance degradation causes 7% and 3% increases in lifetime fuel consumption and GHG emission, respectively, regenerative braking improves the fuel economy by 23% and reduces the total GHG emission by 10%. The cost assessment results indicate that the current FCV technology is approximately $2,100 more costly than the equivalent gasoline vehicle based on the total lifetime cost including purchase and fuel cost. However, prospective enhancements in fuel cell durability could potentially reduce the FCV lifetime cost below that of gasoline vehicles. Overall, the present results indicate that fuel cell vehicles are becoming both technologically and economically viable compared with incumbent vehicles, and provide a realistic option for deep reductions in emissions from transportation. Copyright © 2016 John Wiley & Sons, Ltd.

show abstract

“…Matsuura et al reported a fuel cell degradation rate of

e^{prefix- 5} \frac{V}{h}

for 2,700 h life test of the single fuel cell at 300 mA/cm. In this study, we have used the

3.65 \times e^{prefix- 5} \frac{V}{h}

voltage degradation rate .…”

Section: Methodsmentioning

confidence: 99%

“…If the braking energy exceeds the storage capacity of the capacitor, the surplus energy is transferred to charge the battery. For the battery charging, a linear charging curve with the slope of 0.17 kWh is assumed according to the literature .…”

Section: Methodsmentioning

confidence: 99%

Realistic simulation of fuel economy and life cycle metrics for hydrogen fuel cell vehicles

Ahmadi

Kjeang

2016

Int. J. Energy Res.

View full text Add to dashboard Cite

show abstract

“…There are many topologies of fuel cell-supercapacitor hybridization but most of them are connected together via various types of DC/DC converter. The very new concept of fuel cell/supercapacitor hybridization is to connect them directly together, this method is call direct-hybridization [56][57][58][59]. This concept is very interesting because it is able to increase efficiency, lifetime and reduce the system cost due to the absence of the DC/DC converter, which has significant impact on system design.…”

Section: Why Should Energy Storage Unit Be Integrated With Fuel Cell mentioning

confidence: 99%

Hydrogen Fuel Cell Implementation for the Transportation Sector

Yeetsorn¹,

Maiket²

2021

Advanced Applications of Hydrogen and Engineering Systems in the Automotive Industry

View full text Add to dashboard Cite

Global transportation possesses have compelling rationales for reducing the consumption of oil, emissions of carbon dioxide, and noise pollution. Transitions to alternative transportation technologies such as electric vehicles (EVs) have gained increased attention from the automotive industries. A fuel cell electric vehicle (FCEV) occupying a hydrogen engine is one of the most stupendous technologies, since it is suitable for a large-scale transportation. However, its performance limitations are in question due to voltage degradation in long term operations through steady conditions under constant load and dynamic working conditions. Other drawbacks of using fuel cells in EVs are energy balances and management issues necessary for vehicle power and energy requirements. An efficient solution to accommodate driving behavior like dynamic loads comprises of hybridizing PEMFCs with energy storage devices like supercapacitors and batteries. This opening chapter reviews the projected gist of FCEV status; considers the factors that are going to affect how FCEVs could enter commercialization, including the importance of fuel cells for EV technologies; the degradation diagnoses using accelerated stress test (AST) procedures; FCEV hybridization; and the contribution of an energy storage device for charging EVs. The article also addresses case studies relating to material degradation occurring from driving behavior. Information about material degradation can be compiled into a database for the improvement of cell component performance and durability, leading to the creation of new materials and new fuel cell hybridization designs. To support the growth of EV technologies, an energy storage is required for the integrated alternative electricity generations. A redox flow battery is considered as a promising candidate in terms of attractive charging station for EVs or HEVs.

show abstract

“…In [7] an alternative topology is presented: an additional generator, instead of the EV's electric motor, is used to charge SC or batteries. Other alternative architectures use the methods of superconducting magnetic energy storage (SMES) or flywheel energy storage (FES) to accumulate the energy harvested by the regenerative system [13].…”

Section: B Electric Circuit Topologymentioning

confidence: 99%

Development of a compact regenerative braking system for electric vehicles

Tzortzis

Amargianos

Piperidis

et al. 2015

2015 23rd Mediterranean Conference on Control and Automation (MED)

View full text Add to dashboard Cite

In this paper, a detailed study and implementation of a reliable and efficient regenerative braking system is presented. It is applied on a prototype electric vehicle, that uses a hydrogen fuel cell as its only power source. Supercapacitors are used to store the energy that is generated during braking, transistors for switching the alternative circuits and an embedded computer controller program undertakes the synchronization of the system tasks. A finite state machine was designed to create a simple but robust technique to control the transistor switches according to the system's sensory inputs. The system is powered by its own supercapacitors, and thus it may be used in a plug-and-play manner. On-road test drives proved the system's reliability and efficiency.

show abstract

The characteristics of regenerative energy for PEMFC hybrid system with additional generator

Cited by 13 publications

References 12 publications

Realistic simulation of fuel economy and life cycle metrics for hydrogen fuel cell vehicles

Realistic simulation of fuel economy and life cycle metrics for hydrogen fuel cell vehicles

Hydrogen Fuel Cell Implementation for the Transportation Sector

Development of a compact regenerative braking system for electric vehicles

Contact Info

Product

Resources

About