Experimental study on rapid cold start-up performance of PEMFC system |
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| Affiliation: | 1. School of Automotive Studies, Tongji University (Jiading Campus), 4800 Cao''an Road, Shanghai 201804, China;2. Clean Energy Automotive Engineering Center, Tongji University (Jiading Campus), 4800 Cao''an Road, Shanghai 201804, China;3. Henan Yuqing Power Co., Ltd. 416Mu''ye Road, Xinxiang City, 453000, China;1. Department of Physics, School of Basics and Applied Sciences, Central University of Tamil Nadu, Neelakudi Campus, Thiruvarur, 626001, Tamil Nadu, India;2. Simulation Centre for Atomic and Nano MATerials(SCANMAT), Central University of Tamil Nadu, Neelakudi Campus, Thiruvarur, 626001, Tamil Nadu, India;1. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Centro Atómico Bariloche (CNEA), Av. Bustillo 9500, R8402AGP, S.C. de Bariloche, Río Negro, Argentina;2. Department of Chemistry, University of Burgos, 09001, Burgos, Spain;3. International Research Center in Critical Raw Materials for Advanced Industrial Technologies (ICCRAM), University of Burgos, 09001 Burgos, Spain;4. Universidad Nacional de Cuyo (Instituto Balseiro)-Centro Atómico Bariloche (CNEA), Av. Bustillo 9500, R8402AGP, S.C. de Bariloche, Río Negro, Argentina;1. Key Laboratory of Optical Field Manipulation of Zhejiang Province, Department of Physics, Zhejiang Sci-Tech University, Hangzhou, 310018, PR China;2. Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou, 310018, PR China;1. Key Laboratory of Advanced Fuel Cells and Electrolyzers Technology of Zhejiang Province, Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, No.1219 Zhongguan West Road, Ningbo, Zhejiang Province, 315200, PR China;2. University of Chinese Academy of Sciences, Beijing, PR China;3. Research Institute of Petroleum Exploration & Development, PetroChina 20 Xueyuan Road, Haidian District, Beijing 100083, China |
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| Abstract: | The cold start-up of a proton exchange membrane fuel cell is considered one of the main factors affecting the commercialization of fuel cell vehicles. In this study, an automotive fuel cell system was designed and tested for cold start-up at low temperatures. In the absence of PTC (Positive Temperature Coefficient) heating device, the stack was directly loaded to generate heat, which provided the cold start-up characteristics of system at low temperatures. Cold start-up process and purging control strategies were analyzed at ?20 °C and ?30 °C. It was found that the fuel cell system could produce 50% power in 25 s at ?20 °C, the coolant temperature's heating rate was 0.78 °C/s, the coolant outlet temperature could reach 20 °C within 40 s and no apparent low voltage of single cell occurred. While, the cell close to the end plate had low cell voltage and reverse polar phenomena throughout the ?30 °C cold start-up process. The heating rate of the coolant temperature was 0.44 °C/s, and the temperature of coolant outlet reached 20 °C within 90 s. The purging time ranged from 180 to 260 s according to the voltage drop value of stack and the ohmic resistance of stack was 360–470 mΩ after the high-volume air purging at different tests. After 30 cold start-up tests, the rated point performance of the stack declined by about 1%, and the consistency of cell voltages did not change significantly. Future work will focus on optimizing cold start-up strategy and speeding up purging time to minimize the performance impact of the cold start-up. |
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| Keywords: | PEMFC system Experimental study Cold start-up Control strategies |
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