A promising bioelectrochemical reactor integrating membrane distillation and microbial fuel cell for dual advantages of power generation and water recovery

2020 ◽  
Vol 6 (10) ◽  
pp. 2776-2788
Author(s):  
Thanh Ngoc-Dan Cao ◽  
Shiao-Shing Chen ◽  
Hau-Ming Chang ◽  
Thanh Xuan Bui ◽  
I-Chieh Chien
Keyword(s):  
Power Generation ◽  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Energy Production ◽  
Electrical Energy ◽  
Membrane Distillation ◽  
Water Recovery ◽  
The Novel ◽  
Electrical Energy Production ◽  
Bioelectrochemical Reactor

Water recovery from wastewater was accomplished simultaneously with electrical energy production by the novel integration of distillation membrane and microbial fuel cell to create a system called membrane distillation microbial fuel cell.

Thermally Regenerative Hydrogen/Oxygen Fuel Cell Power Cycles

1988 ◽  
Vol 110 (2) ◽  
pp. 107-112 ◽  
Author(s):  
J. H. Morehouse
Keyword(s):  
High Temperature ◽  
Fuel Cell ◽  
Energy Production ◽  
Technology Development ◽  
Thermal Dissociation ◽  
Electrical Energy ◽  
Power Cycles ◽  
Electrical Energy Production ◽  
Oxygen Fuel ◽  
Very High

Two thermodynamic power cycles are analytically examined for future engineering feasibility. These power cycles use a hydrogen-oxygen fuel cell for electrical energy production and use the thermal dissociation of water for regeneration of the hydrogen and oxygen. The first cycle uses a thermal energy input at over 2000K to thermally dissociate the water. The second cycle dissociates the water using an electrolyzer operating at high temperature (1300K) which receives both thermal and electrical energy as inputs. The results show that while the processes and devices of the 2000K thermal system exceed current technology limits, the high temperature electrolyzer system appears to be a state-of-the-art technology development, with the requirements for very high electrolyzer and fuel cell efficiencies seen as determining the feasibility of this system.

scholarly journals Experimental Investigation of Flow-Induced Motion and Energy Conversion of a T-Section Prism

Energies ◽  
2018 ◽  
Vol 11 (8) ◽  
pp. 2035 ◽  
Author(s):  
Nan Shao ◽  
Jijian Lian ◽  
Guobin Xu ◽  
Fang Liu ◽  
Heng Deng ◽  
...  
Keyword(s):  
Power Generation ◽  
Energy Conversion ◽  
Energy Production ◽  
Electrical Energy ◽  
High Amplitude ◽  
Active Power ◽  
Generation Efficiency ◽  
Aspect Ratios ◽  
Induced Motion ◽  
Electrical Energy Production

Flow-induced motion (FIM) performs well in energy conversion but has been barely investigated, particularly for prisms with sharp sections. Previous studies have proven that T-section prisms that undergo galloping branches with high amplitude are beneficial to energy conversions. The FIM experimental setup designed by Tianjin University (TJU) was improved to conduct a series of FIM responses and energy conversion tests on a T-section prism. Experimental results are presented and discussed, to reveal the complete FIM responses and power generation characteristics of the T-section prism under different load resistances and section aspect ratios. The main findings are summarized as follows. (1) Hard galloping (HG), soft galloping (SG), and critical galloping (CG) can be observed by varying load resistances. When the load resistances are low, HG occurs; otherwise, SG occurs. (2) In the galloping branch, the highest amplitude and the most stable oscillation cause high-quality electrical energy production by the generator. Therefore, the galloping branch is the best branch for harvesting energy. (3) In the galloping branch, as the load resistances decrease, the active power continually increases until the prism is suppressed from galloping to a vortex-induced vibration (VIV) lower branch with a maximum active power Pharn of 21.23 W and a maximum ηout of 20.2%. (4) Different section aspect ratios (α) can significantly influence the FIM responses and energy conversions of the T-section prism. For small aspect ratios, galloping is hardly observed in the complete responses, but the power generation efficiency (ηout,0.8 = 27.44%) becomes larger in the galloping branch.

scholarly journals Effect of different yeast extract concentration in membrane-less microbial fuel cell (ML-MFC) for electricity generation using food waste as carbon sources

2021 ◽  
Vol 2129 (1) ◽  
pp. 012098
Author(s):  
Nurul Najwa Adam Malik ◽  
Mohammad Mirza Mohammad Faizal ◽  
Husnul Azan Tajarudin ◽  
Noor Fazliani Shoparwe ◽  
Muaz Mohd Zaini Makhtar
Keyword(s):  
Power Generation ◽  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Yeast Extract ◽  
Food Waste ◽  
Waste Treatment ◽  
Carbon Sources ◽  
Cost Effective ◽  
Electrical Energy ◽  
Extract Concentration

Abstract Electricity constitutes one of the basic energies of our everyday life and approximately 14 % of the global population does not have the access to electricity. An abundance of waste is generated daily wherein food waste constitutes 45 % of the composition. A mediator-less and membrane-less single-chambered microbial fuel cell (ML-MFC) has the potential to serve as a cost-effective solution for food waste treatment and electricity power generation at no additional cost for the substrate. Food waste from E-Idaman Sdn. Bhd. Kedah was utilised in this study to generate electrical energy while focusing on the effect of different yeast extract concentrations on the performance of the ML-MFC. Electrogenic bacterial (EB) culture employed in this study acted as a catalyst for the power generation and was isolated from a previous ML-MFC study. The proximate analysis of food waste observed carbon constituting the greatest composition at 30.02 %. From the conducted preliminary study which compared three different strains of EB to be introduced in the ML-MFC, Bacillus subtillis sp. exhibited the highest specific growth rate, μ, (0.117 g. L−1/h) and shortest doubling time, Td, (5.93 h). One-factor-at-a-time (OFAT) method was utilised to evaluate the performance of the ML-MFC. 15 g/L yeast extract concentration obtained the greatest power density (628.05 × 106 mW/m2), substrate degradation efficiency (12.3 %), COD removal (99 mg/L) and biomass (44.32 mg/L). This showcased that the addition of extra yeast extract concentration into the food waste had boosted the efficiency of EB’s growth resulting in greater consumption of carbon source (removed COD value; bioremediation) in the food waste.

Power generation and pollutants removal from landfill leachate in microbial fuel cell: Variation and influence of anodic microbiomes

2018 ◽  
Vol 247 ◽  
pp. 434-442 ◽  
Author(s):  
Muhammad Hassan ◽  
Huawei Wei ◽  
Huijing Qiu ◽  
Yinglong Su ◽  
Syed Wajahat H. Jaafry ◽  
...  
Keyword(s):  
Power Generation ◽  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Landfill Leachate ◽  
Pollutants Removal ◽  
Cell Variation
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