# 스마트에너지캠퍼스 마이크로그리드에서 사물인터넷 융합 PEM 전기분해와 PEM 연료전지 모니터링 및 운영 연구

• Accepted : 2016.12.20
• Published : 2016.12.31
• 55 48

#### Abstract

In this paper we are trying to explain the effect of temperature on polymer membrane exchange water electrolysis (PEMWE) and polymer membrane exchange fuel cell (PEMFC) simultaneously. A comprehensive studying approach is proposed and applied to a 50Watt PEM fuel cell system in the laboratory. The monitoring process is carried out through wireless LoRa node and gateway network concept. In this experiment, temperature sensor measure the temperature level of electrolyzer, fuel cell stack and $H_2$ storage tank and transmitted the measured value of data to the management control unit (MCU) through the individual node and gateway of each PEMWE and PEMFC. In MCU we can monitor the temperature and its effect on the performance of the fuel cell system and control it to keep the lower heating value to increase the efficiency of the fuel cell system. And we also proposed a mathematical model and operation algorithm for PEMWE and PEMFC. In this model, PEMWE gives higher efficiency at lower heating level where as PEMFC gives higher efficiency at higher heating value. In order to increase the performance of the fuel cell system, we are going to monitor, communicate and control the temperature and pressure of PEMWE and PEMFC by installing these systems in a building of university which is located in the southern part of Korea.

#### Keywords

PEMWE;PEMFC;LoRa Node and LoRa gateway;temperature effect;IoT convergence

#### References

1. J. Peng and S.J. Lee, 'Numerical Simulation of Proton Exchange Membrane Fuel Cells at High Operating Temperature', Journal of Power Sources, Vol. 162, No. 2, pp. 1182 - 1191,2006. https://doi.org/10.1016/j.jpowsour.2006.08.001
2. A Scheme on Energy Efficiency Through the Convergence of Micro-grid and Small Hydro Energy, Bo-Seon Kang, Keun-Ho Lee, KONS. v.6, no.1, pp.29-34, Feb. 2015.
3. PEM Electrolysis for Hydrogen Production: Principles and Applications, Edited by Dmitri Bessarabov, Haijiang Wang, Hui Li,Nana, CRC Press, ISBN-13:978-1-4822-5232-3, Dec. 2015.
4. The Fuel Cell An Ideal Chemical Engineering Undergraduate Experiment", Jung-Chou Lin, H. Russel Kunz, James M. Fenton, Suzanne S. Fenton, University of Connecticut
5. http://www.greencarcongress.com/2005/03/hsub2sub_genera.html
6. http://www.greencarcongress.com/2005/03/hsub2sub_genera.html
7. http://samples.sainsburysebooks.co.uk/9780080455419_sample_795033.pdf
8. Barbir, Frano. PEM fuel cells: theory and practice. Academic Press, 2013.