Performance analysis of 5 kW PEMFC-based residential micro-CCHP with absorption chiller

Chen, Xi; Gong, Guangcai; Wan, Zhongmin; Luo, Lingen; Wan, Junhua

doi:10.1016/j.ijhydene.2015.06.139

Cited by 100 publications

(21 citation statements)

References 29 publications

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“…automobile, aerospace, portable) and stationary applications (e.g. micro combined heat and power generation for residential use [3][4][5]) due to their high efficiency, their low weight and their lower operating temperature (usually between 60 and 80°C [6]). A PEFC is an electrochemical device, as shown in Figure 1, which converts chemical energy from oxygen and hydrogen directly into electrical energy.…”

Section: Introductionmentioning

confidence: 99%

Effects of mechanical compression on the performance of polymer electrolyte fuel cells and analysis through in-situ characterisation techniques - A review

Khetabi

Bouziane

Zamel

et al. 2019

Journal of Power Sources

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One of the factors that affect the polymer electrolyte fuel cell (PEFC) performance is the mechanical compression inside the stack. Although this compression plays an important role to ensure efficient gas sealing along with optimised electrical and thermal conductivities during PEFCs operation, excessive mechanical pressure may worsen the fuel cell performance through reducing the porosity and transport ability of PEFC components. In the last few years, intensive research studies have focused on the gas diffusion layers (GDLs) due to the strong relation of their compressibility with the performance of the PEFCs. A few review papers investigating the compression effect on individual fuel cell components have already been published. However, the evaluation of this effect on an operating PEFC has rarely been reviewed. This paper covers a comprehensive overview of the studies that have focused on the relationship between mechanical compression and the observed performance of a PEFC operating in real life conditions (in-situ). In this study, the effects of GDL properties with respect to the applied mechanical compression and the operating conditions are investigated. Much more work in literature has focused on GDL properties. Thus, an extended discussion is dedicated to this cell element in this paper.

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Section: Introductionmentioning

confidence: 99%

Effects of mechanical compression on the performance of polymer electrolyte fuel cells and analysis through in-situ characterisation techniques - A review

Khetabi

Bouziane

Zamel

et al. 2019

Journal of Power Sources

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“…They concluded that an increase at 160% of the KWh price sold to the grid is required in order for the FCs to be competitive with other mature co-generation technologies. Chen et al (2015) have reported on a 5 KW PEMFC-based residential micro-cogeneration cooling heat power (CCHP) system with absorption chiller. The authors described a micro tri-generation system driven by a PEMFC supplying electricity, hot water, space heating and space cooling to residences in summer and winter.…”

Section: Introductionmentioning

confidence: 99%

Possibilities of Using Fuel Cells for Energy Generation in Agricultural Greenhouses: A Case Study in Crete, Greece

Vourdoubas¹

2019

JAS

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The possibility of using fuel cells powered by solar hydrogen for energy generation in greenhouses with reference to the island of Crete, Greece has been examined. Change of fossil fuels used in greenhouses with renewable energies and sustainable energy technologies is very important for mitigation of climate change. Various renewable energy sources and low carbon emission technologies including geothermal energy, biomass, solar photovoltaics and co-generation systems have been used so far. Use of solar photovoltaics for generating electricity consumed in water electrolysis for hydrogen production has been investigated. Hydrogen feeding a proton exchange membrane fuel cell co-generating electricity and heat was used in a greenhouse located in Crete, Greece. The system could be useful in a stand-alone greenhouse with annual specific energy consumption at 150 KWh/m2. A solar photovoltaic system with nominal power at 33.33 KWp powering an electrolytic cell at 5.71 KW could produce annually 2,083 kg hydrogen. The hydrogen could feed a fuel cell at 1.71 KWel generating annually all the electricity required in a greenhouse of 1,000 m2. Co-produced heat could also cover 11.11% of the annual heat requirements in the greenhouse. It was found though that the overall electric efficiency of the system was very low at 4.5%. The low overall efficiency and the size of the solar-PV required indicate that the abovementioned energy system is not suitable in commercial agricultural greenhouses.

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“…CCHP and combined heating and power (CHP) technology are effective and widely used ways to improve energy utilization, especially in the field of low grade thermal energy utilization [1][2][3]. Fuel cell-based CCHP/CHP systems have attracted much attention in recent decades due to their excellent performance of high efficiency, high stability, low noise and low emission [4,5]. Another effective way to make the most of the low-grade thermal energy is to introduce an ORC system [6].…”

Section: Introductionmentioning

confidence: 99%

“…The results showed that the total performance of the CCHP system was closely related to the PEMFC operating conditions, and could be improved with higher operating temperatures and higher electrical efficiency. Chen et al [4] designed a PEMFCbased CCHP system combined with a single stage absorption chiller. A complete model including the fuel cell stack, gas supply system, LiBr-H2O absorption chiller, and system efficiency was developed.…”

Section: Introductionmentioning

confidence: 99%

Energy- and exergy-based working fluid selection and performance analysis of a high-temperature PEMFC-based micro combined cooling heating and power system

et al. 2017

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A combined cooling heating and power (CCHP) system based on high-temperature proton exchange membrane fuel cell (PEMFC) is proposed. This CCHP system consists of a PEMFC subsystem, an organic Rankine cycle (ORC) subsystem and a vapor compression cycle (VCC) subsystem. The electric power of the CCHP system is 8 kW under normal operating conditions, the domestic hot water power is approximately 18 kW, and the cooling and heating capacities are 12.5 kW and 20 kW, respectively. Energy and exergy performance of the CCHP system are thoroughly analyzed for six organic working fluids using Matlab coupled with REFPROP. R601 is chosen as the working fluid for ORC subsystem based on energy and exergy analysis. The results show that the average coefficient of performance (COP) of the CCHP system is 1.19 in summer and 1.42 in winter, and the average exergy efficiencies are 46% and 47% under normal operating conditions. It can also be concluded that both the current density and operating temperature have significant effects on the energy performance of the CCHP system, while only the current density affects the exergy performance noticeably. The ambient temperature can affect both the energy and exergy performance of the CCHP system. This system has the advantages of high facility availability, high efficiency, high stability, low noise and low emission; it has a good prospect for residential applications.

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Performance analysis of 5 kW PEMFC-based residential micro-CCHP with absorption chiller

Cited by 100 publications

References 29 publications

Effects of mechanical compression on the performance of polymer electrolyte fuel cells and analysis through in-situ characterisation techniques - A review

Effects of mechanical compression on the performance of polymer electrolyte fuel cells and analysis through in-situ characterisation techniques - A review

Possibilities of Using Fuel Cells for Energy Generation in Agricultural Greenhouses: A Case Study in Crete, Greece

Energy- and exergy-based working fluid selection and performance analysis of a high-temperature PEMFC-based micro combined cooling heating and power system

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