Works

Project 1:

Development of a 100 W PV-Electrolysis-Fuel cell complete system

Participants: Uysal & all TEMENAR Members

This project aims to develop and construct a complete 100 W unit, which involves solar-hydrogen-electricity cycle by employing photovoltaic panels, electrolysis unit and a fuel cell together with all the electrical circuits and control.

Project 2:

Development of a 3 kW PV-Electrolysis-Fuel cell complete system

Participants: Uysal & all TEMENAR Members

This project aims to develop and construct a complete 3kW unit, which involves solar-hydrogen-electricity cycle by employing photovoltaic panels, electrolysis unit and a fuel cell together with all the electrical circuits and control.

Project 3 :

Development of a 2-way inverter to connect the output of a fuel-cell to 220 V power system

Participants: Aydemir & Iskender

The purpose of this project is to obtain regulated 220 V ac from unregulated dc output of fuel-cells. First an inverter to generate ac 220 V from a single source, then, a cascade connected multilevel inverter employing several fuel-cells will be developed. Also, a controller allowing power flow in both directions between the local generator and the power grid will be designed.

Project 5 :

Developing a DC Power Source for Electrolysis Unit

Participants: İskender & Aydemir & Gündüz

A high current low voltage dc power source required for electrolysis process will be developed in this project. Also, parallel operation of power sources to obtain higher current levels will be investigated.

Project 6 :

Electrolysis

Participants: Uysal, Aksu, İbrahimoğlu, Gündüz, Doğan, Aydemir

Electrolysis is a process by which electrical energy is used to obtain hydrogen and oxygen from water. The hydrogen can be used directly or stored for later use with the fuel cell array.

The chemical equation for the electrolysis of water is:

It is essential to develop a cell with suitable geometry for every specific application and to test appropriate electrodes and electrolytes.

Project 7 :

Hydrolysis of sodium borohydride

Participants: Gündüz, Uysal, Doğan, Alibeyli

Sodium borohydride is known to be the most important chemical for storing and controlled release of hydrogen when needed. Hydrolysis of sodium borohydride can be shown by the following chemical reaction:

Development of appropriate catalysts and systems to enable controlled release of hydrogen is a very attractive current research and development topic.

Project 8 :

Production of sodium borohydride

Participants: Uysal, Gündüz, Doğan, Dilsiz, Atılgan

Sodium borohydride is very important chemical in fuel cell technology. As Turkey has vast deposits of bor mineral, it is vitally important to use these deposits to produce sodium borohydride. Technology involved in this process is investigated in this project.

Project 9 :

Recycling sodium metaborate to sodium borohydride

Participants: Uysal, Gündüz, Doğan, Dilsiz

Sodium metaborate is the product of hydrolysis reaction of sodium borohydride which is used to produce hydrogen;

It is very attractive to develop a process for recycling sodium metaborate to sodium borohydride. Repeated use of sodium borohydride will have an important impact on hydrogen economy in fuel cell technology and in transportation applications.

Project 10 :

Hydrogen Production by Gasification

Participants: Doğan, Gündüz, Uysal

Hydrogen is obtained by gasification using some resources (i.e coal, natural gas, plastic waste etc.). CO and CO 2 are also formed in the gasification reaction as well as H 2. Hydrogen thus produced can be used in the fuel cell array or stored for later use.

Project 12 :

Development of PEM Fuel Cell Membrane

Participants: Dilsiz, Alibeyli, Yılmazer, İbrahimoğlu, Mutlu

1.Development of high temperature resistant borosiloxane containing proton exchange membrane for fuel cell application.

2. improvements of the mechanical, chemical and ion conductivity properties of polymer electrolyte membrane by using plasma surface modification techniques

Project 14 :

Development of a 100 W PEM fuel cell

Participants: İbrahimoğlu, Uysal, Sivrioğlu, Özkan, Aydemir, Bıyıkoğlu

This project aims to develop and construct a prototype 100 W PEM fuel cell which can be used for various applications.

Project 15 :

Development of a 3 kW PEM fuel cell

Participants: İbrahimoğlu, Uysal, Sivrioğlu, Özkan, Aydemir, Bıyıkoğlu

This project aims to develop and construct a prototype 100 W PEM fuel cell which can be used for various applications.

Project 16 :

Fuel Cell Modeling

Participants: Sivrioğlu, Bıyıkoğlu, Aydemir, Atılgan, Uysal

Development of three-dimensional mathematical models of heat and mass transfer and electrochemistry in individual cells and the fuel cell stack. This can contribute to the overall understanding of PEM fuel cell technology and facilitate research on improved stack designs, improved cell materials, and fuel cell system design.

Project 17 :

Experimental and Theoretical Study of Metal-Hydride Storage Systems

Participants: Sivrioğlu, Bıyıkoğlu, Atılgan

1. Development and production of metal-hydride storage systems and experimental investigation of the parameters such as materials, storage geometry and process conditions affecting the process of hydrogen storage.
2. Development of a three-dimensional mathematical model of the heat and mass transfers and fluid flow during the hydriding process in metal-hydride storage systems.

Project 20 :

Development of a Fuel Cell Test Stand and Testing of Fuel Cell Models and Prototypes

Participants: Sivrioğlu, Aydemir, Bıyıkoğlu, Atılgan, İbrahimoğlu, Doğan, Uysal

This project aims to develop and construct a test stand to determine the fuel cell power and efficiency. In addition, parametric studies can be conducted to evaluate the influence of fuel and air conditions on stack performance. The experimental validation of the mathematical models developed can also be achieved by using this test stand.

Project 22 :

Electrochemical Oxidation of Sodium Borohydride

Participants: Uysal, Sanlı (Ph.D. Student)

Besides using gaseous hydrogen in the fuel cells, it is also possible to produce electricity by anodic oxidation of sodium borohydride as shown below;

Performance of appropriate electrodes, which will prevent hydrogen evolution by the hydrolysis reaction but will enable production of 8 electrons by the above reaction as much as possible, and development of a cell system for this application are investigated in this research.