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Open Access
Research article

Analysis of Characteristics of a 5 kw Power Plant based on Solid Oxide Fuel Cells in Four Modes

j. volkova1,2,
v. munts1,
n. plotnikov2,
j. munts3
1
Department of Heat Power Engineering and Heat Engineering, Ural Federal University, Russia
2
Ural Industrial Company, Russia
3
Department of Control Systems in Power Engineering and Production Plants, Ural Federal University, Russia
International Journal of Energy Production and Management
|
Volume 2, Issue 1, 2017
|
Pages 60-69
Received: N/A,
Revised: N/A,
Accepted: N/A,
Available online: N/A
View Full Article|Download PDF

Abstract:

The paper presents the results of testing a 5 kW power plant based on solid oxide fuel cells (SOFC) with natural gas serving as fuel, equipped with a steam reformer combined with a burner. It includes a diagram of the power plant and a result analysis procedure based on heat and mass balances elaborated for the reformer, SOFC stack, catalytic burner and heat exchanger. The experimental findings were used to calculate the actual ratios of fuel utilization, oxygen consumption from cathode air in the elec- trochemical generator using two methods (heat and energy balances and Faraday’s law). A comparison of the results of the two methods revealed a small error, which was observed mainly in the second mode (60%).

Parameters of the power plant by ‘UIC’ LLC were reviewed at four steady running modes: 40% of SOFC’s power utilization (2 kW), 60% (3 kW), 90% (4.5 kW) and at the peak mode of 110% (5.4 kW), where the consumption exceeds the rated power by 10%.

Calculation of the equilibrium composition of conversion products, at temperatures (t3) reg- istered at the reformer’s outlet, allowed the formula for the natural gas reforming reaction to be obtained.

A simplified method of calculating the composition of the natural gas steam reforming products is described; the results are compared with calculations made in the program Gaseq, using the software package Mathcad for the solution of nonlinear equations.

Analysis of the results showed the effectiveness of a simplified method at temperatures above 800°C; in that temperature range, this method has an error of less than 0.5%, which is sufficient for using in practice.

Keywords: Result of experiments, Simplified method of calculating, Solid oxide fuel cells, Steam reform- ing of natural gas, Studying of performance

1. Introduction

2. Test Facility Layout

3. Experimental Findings

4. Comparison Between the Experimental Findings and Calculated Data

5. Conclusions

Acknowledgments

The authors would like to express their thanks to all partners who have contributed to the study. The authors would also like to acknowledge Ningbo SOFCMAN Electric Power Tech- nology Co. Ltd, from China, for help in conducting the experiments.

References
1.
Baskakov, A.P. & Volkova, Y.V., Physics and Chemistry of Thermal Processes: Textbook, Moscow: Teplotehnik, 2013.
2.
Chang, T.G., Lee, S.M., Ahn, K.Y. & Kim, Y., An experimental study on the reaction characteristics of a coupled reactor with a catalytic combustor and a steam reformer for SOFC systems. International Journal of Hydrogen Energy, 37, pp. 3234–3241, 2012. [Crossref]
3.
Korovin, N.V., Sedlov, A.S., Slavnov, Yu.A. & Burov, V.D., Calculating the efficiency of a hybrid power station based on a high-temperature power cell. Teploenergetika. 2,pp. 49–53, 2007.
4.
Lykova, S.A., High-efficiency hybrid power facilities based on fuel cells. Teploenerge- tika, 15, pp. 50–55, 2002.
5.
Korovin, N.A., Fuel Cells and Electrochemical Power Facilities, Moscow: MPEI, p. 280, 2005.
6.
Kasilova, E.V., Analytical and theoretical study of transfer processes in a solid oxide fuel cell: Candidate dissertation in Engineering Science. Moscow: MPEI, 2015.
7.
Boiler Thermal Design (normative method). 3rd edn., revised and enlarged. St. Peters- burg: NPO CKTI, 1998.
8.
Baskakov, A.P., Volkova, Yu.V. & Plotnikov, N.S., Optimum rate of chemical regenera- tion in solid oxide fuel cells. Engineering and Physics Journal, 78(4), pp. 741–750.
9.
Leibush, A.G. (ed), Production of Process Gas for Synthesizing NH3 and Methanol from Hydrocarbon Gases, Moscow: Himiya, 1971.
10.
Baskakov, A.P., Heating and Cooling Metals in a Bubbling Layer, Moscow: Metal- lurgiya, 1974.
11.
Ravdel, K.P. & Mischenko, A.A. (eds), Critical Tables. Quick Reference Book, 7th edn., Leningrad: Himiya, 1974.
12.
Bogdanov, S.N., Burtsev, S.I., Ivanov, O.P. & Kupriyanova, A.V. Refrigeration Appliances and Engineering. Air Conditioning. Properties of Substances: Reference Book, 4th edn., revised and enlarged. St. Petersburg, 1999.
Cite this:
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Volkova, J., Munts, V., Plotnikov, N., & Munts, J. (2017). Analysis of Characteristics of a 5 kw Power Plant based on Solid Oxide Fuel Cells in Four Modes. Int. J. Energy Prod. Manag., 2(1), 60-69. https://doi.org/10.2495/EQ-V2-N1-60-69
J. Volkova, V. Munts, N. Plotnikov, and J. Munts, "Analysis of Characteristics of a 5 kw Power Plant based on Solid Oxide Fuel Cells in Four Modes," Int. J. Energy Prod. Manag., vol. 2, no. 1, pp. 60-69, 2017. https://doi.org/10.2495/EQ-V2-N1-60-69
@research-article{Volkova2017AnalysisOC,
title={Analysis of Characteristics of a 5 kw Power Plant based on Solid Oxide Fuel Cells in Four Modes},
author={J. Volkova and V. Munts and N. Plotnikov and J. Munts},
journal={International Journal of Energy Production and Management},
year={2017},
page={60-69},
doi={https://doi.org/10.2495/EQ-V2-N1-60-69}
}
J. Volkova, et al. "Analysis of Characteristics of a 5 kw Power Plant based on Solid Oxide Fuel Cells in Four Modes." International Journal of Energy Production and Management, v 2, pp 60-69. doi: https://doi.org/10.2495/EQ-V2-N1-60-69
J. Volkova, V. Munts, N. Plotnikov and J. Munts. "Analysis of Characteristics of a 5 kw Power Plant based on Solid Oxide Fuel Cells in Four Modes." International Journal of Energy Production and Management, 2, (2017): 60-69. doi: https://doi.org/10.2495/EQ-V2-N1-60-69
VOLKOVA J， MUNTS V， PLOTNIKOV N， et al. Analysis of Characteristics of a 5 kw Power Plant based on Solid Oxide Fuel Cells in Four Modes[J]. International Journal of Energy Production and Management， 2017， 2(1)： 60-69. https://doi.org/10.2495/EQ-V2-N1-60-69