Performance Analysis of a Floriculture Greenhouse Powered by Integrated Solar Photovoltaic Fuel Cell System

2011 ◽  
Vol 133 (4) ◽  
Author(s):  
A. Ganguly ◽  
S. Ghosh
Keyword(s):  
Fuel Cell ◽  
Performance Analysis ◽  
Power System ◽  
Ventilation System ◽  
Cell System ◽  
Hydrogen Gas ◽  
Energy Deficit ◽  
Solar Photovoltaic ◽  
Fuel Cell System ◽  
Climatic Cycle

In this paper, the performance analysis of a floriculture greenhouse having a fan-pad ventilation system is presented. The greenhouse is powered by integrated solar photovoltaic–electrolyser–fuel cell system. Electrical energy is generated in an array of roof mounted solar photovoltaic modules and energy back up is provided through a combination of polymer electrolyte membrane (PEM) electrolyser and fuel cell system. Excess energy, after meeting the requirements of greenhouse during peak sunshine hours, is supplied to an electrolyser bank to generate hydrogen gas, which is consumed by PEM fuel cell stacks to support the power requirement during the energy deficit hours. The performance of greenhouse and its power system are analyzed for representative days of different seasons of a climatic cycle. The study shows that temperature inside the greenhouse can be maintained within permissible limits for cultivation of target flowers like varieties of rose using fan-pad ventilation. From the performance analysis of power system, it is observed that there is net accumulation of hydrogen gas for representative days of all seasons of a climatic cycle, the daylong cumulative gas generation being maximum in the month of December. The study reinforces the viability of a standalone, grid-independent greenhouse powered through solar energy.

Performance Analysis of Solar PV-Fuel Cell Integrated Floriculture Greenhouse

2011 ◽  
Author(s):  
A. Ganguly ◽  
S. Ghosh
Keyword(s):  
Fuel Cell ◽  
Performance Analysis ◽  
Indian Subcontinent ◽  
Ventilation System ◽  
Hydrogen Gas ◽  
Solar Photovoltaic ◽  
Solar Pv ◽  
Gas Generation ◽  
Photovoltaic Array ◽  
Integrated Power System

The application of greenhouse technology for cultivation of high value crops is rapidly expanding worldwide. But the requirement of electricity imposes a restriction on the emanation of this technology to areas which are remote. In a developing country like India, where a significant number of villages are yet to be connected to any national or regional grid, this restriction assumes considerable significance. The present paper has been divided into two parts: The first part dealing with the performance analysis of a floriculture greenhouse located in the plains of Indian subcontinent equipped with fan induced ventilation system and wet pad along with shading screens. The second part deals with the performance analysis of the greenhouse integrated power system comprising of solar photovoltaic array, electrolyser and fuel cell stacks. The hourly photovoltaic generation, load consumption, cumulative daylong hydrogen gas generation and consumption have been computed for various seasons of a climatic cycle and presented in this paper.

The PEM Fuel Cell System for Autonomous Underwater Vehicles

2005 ◽  
Vol 39 (3) ◽  
pp. 56-64 ◽  
Author(s):  
Satoshi Tsukioka ◽  
Taro Aoki ◽  
Ikuo Yamamoto ◽  
Hiroshi Yoshida ◽  
Tadahiro Hyakudome ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Metal Hydride ◽  
Autonomous Underwater Vehicle ◽  
Earth Science ◽  
Autonomous Underwater Vehicles ◽  
Storage System ◽  
Cell System ◽  
Hydrogen Gas ◽  
Fuel Cell System ◽  
Control Electronics

An ocean-going autonomous underwater vehicle powered by a polymer electrode membrane fuel cell system was completed by The Japan Agency for Marine-Earth Science and Technology. The fuel cell system generates 4kW of electric power for the control electronics and propulsion system. Hydrogen gas is stored under low pressure in the metal hydride. Heat generated by the fuel cell is used to discharge hydrogen gas into the metal hydride. This paper presents the test results of the fuel cell, storage system and the 317km sea test.

scholarly journals Renewable/Fuel Cell Hybrid Power System Operation Using Two Search Controllers of the Optimal Power Needed on the DC Bus

Energies ◽  
2020 ◽  
Vol 13 (22) ◽  
pp. 6111
Author(s):  
Nicu Bizon ◽  
Mircea Raceanu ◽  
Emmanouel Koudoumas ◽  
Adriana Marinoiu ◽  
Emmanuel Karapidakis ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Fuel Cell ◽  
Power System ◽  
Fuel Economy ◽  
Dynamic Load ◽  
Cell System ◽  
Fuel Cell System ◽  
Hybrid Power ◽  
Renewable Power ◽  
Dc Bus

In this paper, the optimal and safe operation of a hybrid power system based on a fuel cell system and renewable energy sources is analyzed. The needed DC power resulting from the power flow balance on the DC bus is ensured by the FC system via the air regulator or the fuel regulator controlled by the power-tracking control reference or both regulators using a switched mode of the above-mentioned reference. The optimal operation of a fuel cell system is ensured by a search for the maximum of multicriteria-based optimization functions focused on fuel economy under perturbation, such as variable renewable energy and dynamic load on the DC bus. Two search controllers based on the global extremum seeking scheme are involved in this search via the remaining fueling regulator and the boost DC–DC converter. Thus, the fuel economy strategies based on the control of the air regulator and the fuel regulator, respectively, on the control of both fueling regulators are analyzed in this study. The fuel savings compared to fuel consumed using the static feed-forward control are 6.63%, 4.36% and 13.72%, respectively, under dynamic load but without renewable power. With renewable power, the needed fuel cell power on the DC bus is lower, so the fuel cell system operates more efficiently. These percentages are increased to 7.28%, 4.94% and 14.97%.

Sign in / Sign up

Export Citation Format

Share Document