Wyniki wyszukiwania - BazTech

1

The investigation of cathode layer of Molten Carbonate Fuel Cell manufactured by using printing techniques

Milewski Jarosław, Sieńko Arkadiusz, Wejrzanowski Tomasz, Jaworski Armen, Szabłowski Łukasz, Ćwieka Karol, Olszewski Artur, Szczęśniak Arkadiusz, Skibiński J., Dybiński Olaf

Journal of Power Technologies

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2019

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Vol. 99, nr 2

82--91

EN

The paper presents an investigation into the three cathode layers for the Molten Carbonate Fuel Cell that were obtained by using printing techniques on various surfaces. The main differences during the manufacturing process were the substrates used when printing the layers: glass and two different sorts of paper. The cathodes were investigated at the theoretical and experimental level. To identify the influence of the substrate used we built a mathematical model of the fuel cell, in which the influence is expressed by the conductivity of the layer. The paper demonstrates the possibility of using printing techniques to manufacture Molten Carbonate Fuel Cell layers.

2

Molten carbonate fuel cell (MCFC) fueled by ash free coal (AFC)

Wołowicz M., Choong-Gon L., Yu-Jeong K., Sang-Woo L., Tae-Kyun K.

Rynek Energii

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2015

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Nr 4

93--97

EN

The paper presents behavior of molten carbonate fuel cell fueled by ash free coal (AFC) in comparison to hydrogen. The gasification process and production of ash free coal is described and literature review is done. To check the composition of syngas after gasification, experiment with ash free coal in the laboratory scale was performed. The gasification conditions were 850 0C and Nitrogen flow at level of 100 mL/min. Results changing in 60 min for gas flow as well as for gas composition are presented. The experimental investigations for coin type scale fuel cell testing (for ash free coal and hydrogen) and test bench scale fuel cell testing (for hydrogen) are described. Comparison between ash free coal and hydrogen as a fuel for molten carbonate fuel cell is presented. Current-voltage curves for investigated cases are presented as well as results are discussed.

PL

W artykule zaprezentowano charakterystyki węglanowego ogniwa paliwowego zasilanego węglem bezpopiołowym (ang. Ash Free Coal – AFC) w porównaniu z paliwem wodorowym. Został opisany proces gazyfikacji oraz otrzymywania węgla bezpopiołowego. Przeprowadzono również studia literaturowe tego tematu. W celu sprawdzenia składu gazu syntezowego powstałego w wyniku gazyfikacji, przeprowadzono eksperyment w skali laboratoryjnej z użyciem węgla bezpopiołowego. Gazyfikacja została przeprowadzona w temperaturze 8500C oraz przy stałym wydatku azotu na poziomie 100 ml/min. Wynik zmiany wydatku gazu oraz jego składu w przeciągu 60 minut został zaprezentowany graficznie. Opisano przeprowadzone doświadczenia w skali “coin type” (wodór oraz węgiel bezpopiołowy) oraz w skali “test bench” (wodór). Zaprezentowano porównanie pomiędzy węglem bezpopiołowym a wodorem jako paliwem do węglanowych ogniw paliwowych. Zostały wygenerowane krzywe prądowo-napięciowe dla analizowanych przypadków wraz z podsumowaniem otrzymanych wyników.

3

Investigation on the preparation and mechanical properties of porous Cu35Ni15Cr alloy for a molten carbonate fuel cell

Li C., Chen J., Li W., Ren Y., He J.

Materials Science Poland

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2015

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Vol. 33, No. 4

887--893

EN

The preparation process of porous Cu35Ni15Cr alloy was studied in this paper. The effect of ball milling time and sintering temperature on the porosity of Cu35Ni15Cr alloy was identified. It was found that 18 h ball milling and 950 degrees C sintering are the most promising parameters for the preparation of porous Cu35Ni15Cr alloy. The products have a similar to ~62 % porosity. The alloy consists of an alpha phase and beta phase. The influence of deformation temperature and loading rate on the mechanical properties of Cu35Ni15Cr alloys was investigated. The results show that with decreasing deformation temperature, the yield strength and elastic modulus of the porous alloy increase. With the increase of loading rate, the yield strength of these alloys shows an increasing trend, but the elastic modulus is on a steady level.

4

Diary biogas as fuel for a Molten Carbonate Fuel Cell – initial study

Milewski J., Michalska K., Kacprzak A.

Journal of Power Technologies

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2013

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Vol. 93, nr 3

161--168

EN

Based on 0-D mathematical modeling and numerical simulations, influences of diary biogas on Molten Carbonate Fuel Cell (MCFC) performance are presented. The governing equations of the MCFC model are presented, the equations were utilized for an adequate simulator construction. An analysis of diary biogas as fuels for MCFC is presented. The results are compared with Natural Gas (NG) as a reference fuel. The diary biogas is characterized by both lower efficiency and lower fuel utilization factors in comparison with NG.

5

Biofuels as fuels for high temperature fuel cells

Milewski J., Lewandowski J.

Journal of Power Technologies

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2013

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Vol. 93, nr 5

347--353

EN

Based on mathematical modeling and numerical simulations, influences of various biofuels on high temperature fuel cell performance are presented. Governing equations of high temperature fuel cell modeling are given. Adequate simulators of both SOFC and MCFC have been done and described. Performances of these fuel cells with dierent biofuels are shown. Some characteristics are given and described. Advantages and disadvantages of various biofuels from system performance point of view are pointed out. An analysis of various biofuels as fuels for Solid Oxide Fuel Cell (SOFC) and Molten Carbonate Fuel Cell (MCFC) is presented. The results are compared with Natural Gas (NG) as a reference fuel. The biofuels are characterized by both lower eciency and lower fuel utilization factors in comparison with NG. The presented results are based on a 0D mathematical model in design point calculation. The governing equations of the model are presented.

6

Off-design analysis of MCFC hybrid system

Milewski J., Miller A.

Rynek Energii

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2012

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Nr 1

151--160

EN

This paper sets out the results of mathematical modeling and numerical simulations of the off-design (part-load) operation of the molten carbonate fuel cell hybrid system (MCFC-HS). The governing equations of modeling are given and an adequate simulator of the MCFC stack was made and described. The performance of the MCFC-HS with part- and over-load operation is shown, and adequate maps are given and described. The ranges of possible system operation conditions are determined.

PL

Przedstawiono wyniki modelowania matemetycznego i symulacji cyfrowej pracy układu hybrydowego: węglanowe ogniwo paliwowe – turbina wodorowa w zmienionych warunkach pracy. Przedstawiono główne założenia wykorzystane do modelowania zarówno stosu ogniw paliwowych jak i pozostałych urządzeń. Przedstawiono pracę układu zarówno przy spadku obciążenia jak i jego nieznacznym wzroście na odpowiednio spreparowanych mapach.