NDLI: A Dynamic Model for a Closed-Loop Continuous Energy System Using Solar Power

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Bradford, M. Culwell Shripad, T. Revankar Kotha, Radhika
Copyright Year	2006
Abstract	One key advantage of solar power over more traditional power sources is its modular nature, allowing it to be used in remote locations or as a supplementary source of power. Recent studies show fuel cell technology as a good means of providing a continuous supply of electricity from a solar array, eliminating drawbacks caused by solar energy's cyclical nature. The high power density of such a system makes it ideal for use in areas such as unmanned aerial vehicles and space exploration. Due to the complexity and relatively high initial cost of current fuel cells, however, optimization of such a system is critical. This paper examines a dynamic model of a solar regenerative fuel cell system built in MATLAB Simulink. The system uses a polymer electrolyte membrane (PEM) fuel cell, running on stored hydrogen and oxygen, to produce power when solar energy is insufficient. It uses a PEM based electrolyzer to produce hydrogen and oxygen from water when solar energy exceeds demand. The mathematical model includes modules for each component, including solar cells, fuel cell, electrolyzer, and auxiliary systems. Models were built based on fundamental physics to the extent practical. The individual modules were first tested for their performances and then were integrated to form an integrated solar powered regenerative fuel cell system. The simulations were carried out for a day and night cycle and the results show that the closed loop system can be operated providing continuous supply of electric power.
Sponsorship	Nuclear Engineering Division
Starting Page	389
Ending Page	397
Page Count	9
File Format	PDF
ISBN	0791847837
DOI	10.1115/IMECE2006-14550
e-ISBN	0791837904
Volume Number	Energy Conversion and Resources
Conference Proceedings	ASME 2006 International Mechanical Engineering Congress and Exposition
Language	English
Publisher Date	2006-11-05
Publisher Place	Chicago, Illinois, USA
Access Restriction	Subscribed
Subject Keyword	Power density Solar cells Water Cycles Oxygen Fuel cell technology Hydrogen Solar power Electricity (physics) Optimization Physics Proton exchange membranes Solar cell arrays Simulation Fuel cells Solar energy Dynamic models Unmanned aerial vehicles Engineering simulation Closed loop systems Matlab
Content Type	Text
Resource Type	Article

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