Waste heat recovery from exhausted gas of a proton exchange membrane fuel cell to produce hydrogen using thermoelectric generator

Lan, YunCheng; Lu, Junhui; Mu, Lianbo; Wang, Suilin; Zhai, Huixing

doi:10.1016/j.apenergy.2023.120687

Cited by 22 publications

(4 citation statements)

References 41 publications

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“…Fu Wang et al [58] used a solid oxide electrolyzer cell integrated with a marine diesel engine to utilize both electricity and waste heat for hydrogen production. Yuncheng Lan et al [59] proposed a method using a thermoelectric generator to recover waste heat from proton-exchange membrane fuel cell exhaust gas to produce hydrogen and established economic and life-cycle climate performance models to evaluate the economic and environmental performance of the system. Matjaz Valant et al [60] proposed an inventive thermochemical cycle that utilizes a reaction between iron and HCl acid for hydrogen production.…”

Section: Introductionmentioning

confidence: 99%

Study on the Application of a Multi-Energy Complementary Distributed Energy System Integrating Waste Heat and Surplus Electricity for Hydrogen Production

Yu,

Yang,

Chen

et al. 2024

Sustainability

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To improve the recovery of waste heat and avoid the problem of abandoning wind and solar energy, a multi-energy complementary distributed energy system (MECDES) is proposed, integrating waste heat and surplus electricity for hydrogen storage. The system comprises a combined cooling, heating, and power (CCHP) system with a gas engine (GE), solar and wind power generation, and miniaturized natural gas hydrogen production equipment (MNGHPE). In this novel system, the GE’s waste heat is recycled as water vapor for hydrogen production in the waste heat boiler, while surplus electricity from renewable sources powers the MNGHPE. A mathematical model was developed to simulate hydrogen production in three building types: offices, hotels, and hospitals. Simulation results demonstrate the system’s ability to store waste heat and surplus electricity as hydrogen, thereby providing economic benefit, energy savings, and carbon reduction. Compared with traditional energy supply methods, the integrated system achieves maximum energy savings and carbon emission reduction in office buildings, with an annual primary energy reduction rate of 49.42–85.10% and an annual carbon emission reduction rate of 34.88–47.00%. The hydrogen production’s profit rate is approximately 70%. If the produced hydrogen is supplied to building through a hydrogen fuel cell, the primary energy reduction rate is further decreased by 2.86–3.04%, and the carbon emission reduction rate is further decreased by 12.67–14.26%. This research solves the problem of waste heat and surplus energy in MECDESs by the method of hydrogen storage and system integration. The economic benefits, energy savings, and carbon reduction effects of different building types and different energy allocation scenarios were compared, as well as the profitability of hydrogen production and the factors affecting it. This has a positive technical guidance role for the practical application of MECDESs.

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Section: Introductionmentioning

confidence: 99%

Study on the Application of a Multi-Energy Complementary Distributed Energy System Integrating Waste Heat and Surplus Electricity for Hydrogen Production

Yu,

Yang,

Chen

et al. 2024

Sustainability

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“…These studies preliminarily investigate the feasibility of TEG in PEMFCs waste heat recovery and demonstrate its advantages including no noise and vibration, wide adaptability to various heat sources, and environmental protection. 47 , 48 However, these investigations are largely confined to applications involving one or a limited number of thermoelectric modules (TEMs), which are difficult to scale up for real PEMFCs. To advance power generation capacity further, it is imperative to enhance the power output of individual TEMs and simultaneously increase the integration density of TEMs.…”

Section: Introductionmentioning

confidence: 99%

Demonstration of a thermoelectric generator system for low-temperature heat harvesting in fuel cell

Zhang,

Luo,

Zhang

et al. 2024

iScience

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“…Thermoelectric generators (TEGs) are used to recover waste heat from various heat sources such as automotive engines, 1,2 car radiators 3 exhaust in gas‐fueled spark‐ignition (SI) engines, 4–7 fuel cell vehicles, 8,9 electric vehicles 10 chimneys, 11 nuclear power systems, 12 high‐power lighting, 13 and solar distillation systems 14 . These heat sources produce temperature differences in the TEG 15 .…”

Section: Introductionmentioning

confidence: 99%

Waste heat recovery from household biomass gasifier stoves (HBGSs) for thermoelectric generators: Effect of the primary air valve angle

Kaewluan,

Wiriyasart

2023

Heat Trans

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Household biomass gasifier stoves (HBGSs) are used in remote areas using natural firewood that is burned in the HBGS for general purposes, such as cooking and warming in winter. The heat dissipation from the walls is assumed to be heat loss. This paper evaluates the electrical performance of thermoelectric generators (TEGs) using heat recovered from the hot walls of an HBGS, considering the effect of three primary air valve angles of 0°, 9°, and 18°. The heat recovered from the HBGS that is electrically transferred through a TEG is assessed. The results showed that the wall heat loss increases with the primary air valve angle of the HBGS. The upper zone near the HBGS gas combustion zone exhibits higher wall temperatures than the middle and lower zones, with a maximum wall temperature of 140°C resulting in an output voltage of 2.55 V. However, the middle and lower zones are also considered as their capacities are consistent with the TEG temperature range. The heat loss from the HBGS is considerably larger than that from other heat sources, and the specific heating area of the heat source is a variable that should be considered to increase the number of TEGs to achieve the desired output values for practical applications. Furthermore, this research serves as a guideline for applying TEGs to recover waste heat from various applications.

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Waste heat recovery from exhausted gas of a proton exchange membrane fuel cell to produce hydrogen using thermoelectric generator

Cited by 22 publications

References 41 publications

Study on the Application of a Multi-Energy Complementary Distributed Energy System Integrating Waste Heat and Surplus Electricity for Hydrogen Production

Study on the Application of a Multi-Energy Complementary Distributed Energy System Integrating Waste Heat and Surplus Electricity for Hydrogen Production

Demonstration of a thermoelectric generator system for low-temperature heat harvesting in fuel cell

Waste heat recovery from household biomass gasifier stoves (HBGSs) for thermoelectric generators: Effect of the primary air valve angle

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