Optimized photovoltiac system for hydrogen production

Ahmad, Gulzar; Shenawy, E. T. El

doi:10.1016/j.renene.2005.05.018

Cited by 69 publications

(29 citation statements)

References 6 publications

(12 reference statements)

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“…Typical conditions on installation site (irradiation, ambient temperature, module temperature) have an important impact on system performance and hydrogen production rates [31]. 4) Energy conversion through a PV-EL-Storage-FC chain is much more complex than direct load supply, but avoids energy surplus losses and can store energy with high capacity for long periods therefore increasing energy availability [32]; an automated energy management system is crucial to obtaining an optimal overall system performance [32,42].…”

Section: Discussionmentioning

confidence: 99%

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Hybrid systems for solar hydrogen: A selection of case-studies

Zini¹,

Tartarini²

2009

Applied Thermal Engineering

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Section: Discussionmentioning

confidence: 99%

“…To understand which solution between a direct connection or an MPPT connection of a PV field to an EL has the higher efficiency, Ahmad [31] employs specific data-loggers to measure solar radiation, hydrogen flow rate, ambient and module temperatures, voltage and current. EL and overall system efficiencies are:…”

Section: Computer Simulationsmentioning

confidence: 99%

Hybrid systems for solar hydrogen: A selection of case-studies

Zini¹,

Tartarini²

2009

Applied Thermal Engineering

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“…where A is the PV array total surface (m 2 ), Q is hydrogen production rate (ml/sec), E is the calorific value of hydrogen (J/ml), and S is solar radiation (W/m 2 ) [30]. Overall efficiency of solar hydrogen system in this time is shown that in Table 3; also variations of the solar radiation intensity and solar hydrogen efficiency versus time are shown in Fig.…”

Section: B Hydrogen Unitmentioning

confidence: 86%

Case Study: Technical Assessment of the Efficiency Optimization in Direct Connected PV-Electrolysis System at Taleghan-Iran

Shiroudi

Taklimi

Jafari

2011

Linköping Electronic Conference Proceedings

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Abstract:The use of PV array energy in supplying the electrolyzer systems is very suitable. During the daylight hours, the sunlight converts by PV array into electrical energy which will be used for electrolyzing process. Then hydrogen produced by the electrolyzer is compressed and stored in hydrogen vessel. This provides energy for the fuel cell to meet the load when the solar energy is insufficient. Solar hydrogen technology is relatively simple and the only raw material for the production of solar hydrogen is water. In this study technical results obtained from direct connection of 10 kW PV array with 5 kW electrolyzer systems for hydrogen production and storage at Taleghan site. Variations of the solar radiation intensity, hydrogen production rate, solar hydrogen efficiency and overall efficiency of solar hydrogen energy were considered as base of analyses. It is found that the minimum and maximum overall energy efficiency values of the system are 0.93 % and 5.01 %, respectively. The result shows a great potential in direct solar radiation for absorbing and converting it to other types of energy in Iran. Using solar energy required high initial investment, so converting solar energy to other types of energy with high efficiency systems is vital.

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“…This is also applicable renewable energy based distributed generation system (either isolated or connected to any distribution network), to deal with power quality issues and efficient power flow management [96,97]. Optimal sizing of storage unit is important to obtain reliable power generation [98,99].…”

Section: >90 Po Algorithmmentioning

confidence: 99%

Decentralized Autonomous Hybrid Renewable Power Generation

Kumar

Palwalia

2015

Journal of Renewable Energy

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Power extension of grid to isolated regions is associated with technical and economical issues. It has encouraged exploration and exploitation of decentralized power generation using renewable energy sources (RES). RES based power generation involves uncertain availability of power source round the clock. This problem has been overcome to certain extent by installing appropriate integrated energy storage unit (ESU). This paper presents technical review of hybrid wind and photovoltaic (PV) generation in standalone mode. Associated components like converters, storage unit, controllers, and optimization techniques affect overall generation. Wind and PV energy are readily available, omnipresent, and expected to contribute major future energy market. It can serve to overcome global warming problem arising due to emissions in fossil fuel based thermal generation units. This paper includes the study of progressive development of standalone renewable generation units based on wind and PV microgrids.

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Optimized photovoltiac system for hydrogen production

Cited by 69 publications

References 6 publications

Hybrid systems for solar hydrogen: A selection of case-studies

Hybrid systems for solar hydrogen: A selection of case-studies

Case Study: Technical Assessment of the Efficiency Optimization in Direct Connected PV-Electrolysis System at Taleghan-Iran

Decentralized Autonomous Hybrid Renewable Power Generation

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