The use of hydrogen in the rural sector in Venezuela: Technical and financial study of the storage phase

The aim of this work is to develop and evaluate a mathematical model for the process of storing hydrogen obtained from hydroelectricity via electrolysis, for use as an energetic vector in rural areas of Venezuela. Following an exhaustive bibliographical review of the subject, pressurized containers...

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Bibliographic Details
Published in:Renewable energy 2009-05, Vol.34 (5), p.1234-1240
Main Authors: Posso, F., Contreras, A., Veziroglu, A.
Format: Article
Language:English
Subjects:
Alternative fuels. Production and utilization
Applied sciences
Compression
Containers
Cost engineering
Economic data
Energy
Energy economics
Exact sciences and technology
Fuels
General, economic and professional studies
Hydroelectricity
Hydrogen
Hydrogen storage
Mathematical analysis
Mathematical model
Mathematical models
Natural energy
Regression
Rural areas
Storage of hydrogen
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Summary:The aim of this work is to develop and evaluate a mathematical model for the process of storing hydrogen obtained from hydroelectricity via electrolysis, for use as an energetic vector in rural areas of Venezuela. Following an exhaustive bibliographical review of the subject, pressurized containers were chosen as the most appropriate means of storage. The components of the compressed H 2 gas storage systems to be modelled are 1) the Compression Unit, CU, and 2) the Storage Unit, SU. With this information and by using non-linear regression methods, we developed a mathematical model with which to study the behaviour of the main variables involved in the storage process: the quantity of H 2 to be stored, the storage pressure, energy consumption, the size of the compressor, and the unit cost of the containers. In structural terms, the mathematical model comprises an energy model and a financial model. The results show that there is a range of operating conditions with a minimal overall cost, as a result of the behaviour of the investment cost, which define how the total costs evolve.
ISSN:0960-1481
1879-0682
DOI:10.1016/j.renene.2008.10.006