CHEQUELLER, P. Pokročilý matematický model palivového článku modelovaný v prostředí Matlab [online]. Brno: Vysoké učení technické v Brně. Fakulta strojního inženýrství. 2025.

Posudek vedoucího

Böhm, Michael

Mr. Chequeller's thesis deals with the topic of fuel cells and their basic dimensioning and simulations in the Matlab environment. The topic of fuel cells is currently very relevant, as confirmed by the fact that this thesis was created in collaboration with Honeywell. The thesis can be divided into two main parts: a theoretical part dealing with the principles of fuel cells and their applications. This part is followed by a practical part, which describes the creation of a simple simulation model. The thesis is logically structured, the individual chapters follow on from each other, and the language of the thesis is of a very good standard. The author also uses a large number of sources, mostly high-quality scientific articles, which he cites correctly. The topicality of this subject is underlined by the fact that most of these sources are less than 5 years old. The text is appropriately supplemented with images and graphs. The theoretical part can therefore serve very well as introductory literature on the subject of fuel cells. The mathematical model in the Matlab environment is relatively simple, but thanks to this, it works very quickly and it is possible to effectively determine the basic dimensions and parameters of the fuel cell based on these 0D calculations. However, there is certainly room for further expansion of this script, which is very easily enabled by the use of the Matlab environment. The student worked on the thesis independently, and consultations were used in a practical manner. Overall, I rate the work as good, meeting the requirements for a final thesis. In terms of its scope and the practical part, it is an average work; the author fulfilled the assignment and objectives of the work, and the script is relatively simple but fully functional. The author has achieved clear results and is able to draw clear conclusions from them. I therefore recommend the work for defense with an overall grade of C/good.

Posudek oponenta

Fridrichová, Kateřina

Mr. Chequeller’s thesis focuses on fuel cell mathematical model modelled in Matlab environment and it addresses a highly relevant and timely topic. The work begins with a clear explanation of fuel cell principles and their practical applications, followed by a well-structured theoretical background that supports the development of a zero-dimensional (0D) model in the Matlab environment.  The thesis is logically organized, with a well-structured narrative and professional technical language that remains accessible and understandable. The use of sources is appropriate, the references are correctly cited, and the bibliography includes a sufficient number of recent and reputable scientific publications. The author draws extensively on up-to-date research from various teams, which contributes meaningfully to the quality of the model implementation. From a formal standpoint, the thesis meets academic standards. Only a few minor errors and typographical issues are present, though some figures suffer from poor readability and are not clearly numbered or referenced within the text. A particular strength of the thesis is the comprehensive overview and comparison of different modelling approaches  for hydrogen fuel cells. The comparative table on page 18 is especially well-designed and enhances clarity. Additionally, the author includes a useful evaluation of various modelling and simulation tools. The only notable shortcoming is the overall scope of the work. While the literature review is well-executed, it could explore the practical implementation aspects of hydrogen fuel cells in greater depth. Likewise, although the model is correctly constructed, the author has chosen the easiest approach. The model could be enhanced and significantly extended. Nonetheless, the model shows a high degree of consistency with reference data and demonstrates solid potential for use in real-time control and system-level simulations. In conclusion, the author has delivered a sound thesis that effectively combines theoretical knowledge of PEMFC with practical Matlab-based modelling. Despite the limited scope, I recommend the thesis for defence.

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