Search results for "power production"

showing 5 items of 5 documents

Electrical power production from low-grade waste heat using a thermally regenerative ethylenediamine battery

2017

Abstract Thermally regenerative ammonia-based batteries (TRABs) have been developed to harvest low-grade waste heat as electricity. To improve the power production and anodic coulombic efficiency, the use of ethylenediamine as an alternative ligand to ammonia was explored here. The power density of the ethylenediamine-based battery (TRENB) was 85 ± 3 W m−2-electrode area with 2 M ethylenediamine, and 119 ± 4 W m−2 with 3 M ethylenediamine. This power density was 68% higher than that of TRAB. The energy density was 478 Wh m−3-anolyte, which was ∼50% higher than that produced by TRAB. The anodic coulombic efficiency of the TRENB was 77 ± 2%, which was more than twice that obtained using ammon…

Battery (electricity)Materials scienceEnergy Engineering and Power TechnologyEthylenediamine02 engineering and technology010402 general chemistry7. Clean energy01 natural scienceschemistry.chemical_compoundWaste heatElectrical and Electronic EngineeringPhysical and Theoretical ChemistryPower densityEnergy recoveryWaste managementRenewable Energy Sustainability and the Environment021001 nanoscience & nanotechnology0104 chemical sciencesSeparation processAnodeChemical engineeringchemistryLow-grade waste heat Thermally regenerative battery Ethylenediamine High power production Thermoelectrochemical systems0210 nano-technologyFaraday efficiencyJournal of Power Sources
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Reverse electrodialysis heat engine for sustainable power production

2017

Abstract Reverse Electrodialysis Heat Engine (REDHE) is a promising technology to convert waste heat at temperatures lower than 100 °C into electric power. In the present work an overview of the possible regeneration methods is presented and the technological challenges for the development of the RED Heat Engine (REDHE) are identified. The potential of this power production cycle was investigated through a simplified mathematical model. In the first part of the work, several salts were singularly modelled as possible solutes in aqueous solutions feeding the RED unit and the corresponding optimal conditions were recognized via an optimization study. In the second part, three different RED He…

Closed loopSettore ING-IND/26 - Teoria Dello Sviluppo Dei Processi ChimiciThermal efficiencyWork (thermodynamics)Combined cycle020209 energy02 engineering and technologyManagement Monitoring Policy and Law7. Clean energyModellingThermolytic saltlaw.inventionlawWaste heatReversed electrodialysisReverse electrodialysi0202 electrical engineering electronic engineering information engineeringProcess engineeringCivil and Structural EngineeringHeat engineWaste managementbusiness.industryChemistryMechanical EngineeringBuilding and ConstructionClosed loop; Heat engine; Modelling; Power production cycle; Reverse electrodialysis; Thermolytic salts; Civil and Structural Engineering; Building and Construction; Energy (all); Mechanical Engineering; Management Monitoring Policy and LawPower production cycle021001 nanoscience & nanotechnology6. Clean waterPower (physics)Energy (all)General EnergyElectric power0210 nano-technologybusinessHeat engineApplied Energy
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Konferenz der Nationalen Komitees der Weltkraftkonferenz Lettlands, Estlands und Litauens: [Vorträge]

1939

Kopsavilkumi angļu valodā

Elektrifizierungslage in EstlandElectric power productionElectricity:TECHNOLOGY::Electrical engineering electronics and photonics::Electric power engineering [Research Subject Categories]Elektrifizierung der LandwirtschaftElektroenerģijas ražošana - BaltijaElektrifizierungslage in LettlandElektroenerģijaElektrifizierungslage in LitauenElektrizitätswerke
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Thermoelectric Heat Exchange and Growth Regulation in a Continuous Yeast Culture

2018

We have designed a thermoelectric heat exchanger (TEHE) for microbial fermentations that is able to produce electric power from a microbial continuous culture using the intrinsic heat generated by microbial growth. While the TEHE was connected, the system proved able to stably self-maintain both the temperature and the optical density of the culture. This paves the way toward a more sustainable operation of microbial fermentations, in which energy could be saved by converting part of the metabolic heat into usable electric power.

Hot TemperatureMaterials scienceGrowth regulationBioelectric Energy SourcesBacterial growthOptical densityUSableMetabolic heatMicrobiologyHeat exchangeheat exchangeContinuous cultureElectricityYeastsPhase (matter)hemic and lymphatic diseasesThermoelectric effectHeat exchangerTemperature regulationPower productionProcess engineeringbusiness.industryOriginal ArticlesYeastChemical engineeringFermentationcontinuous cultureOriginal ArticlePeltier–Seebeck effectElectric powerbusinesspower productiontemperature regulation
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Improving operation of a complex headworks system for municipal use and hydropower production by mathematical programming

2013

The paper presents a Mixed Integer Non Linear Programming (MINLP) model of the water resources system supplying Genoa, in northern Italy. The system presently features five reservoirs, three main river intakes, and two well fields. The hydrological regime is typically Mediterranean; water availability is however relatively abundant, so that drought issues are limited, especially now that water demand from the supply sources has decreased due to reduced population, deindustrialization and to improvement in the operation and maintenance of the water distribution network. In this context, it is worthwhile considering the possibility to relax an over-conservative management of resources, justif…

OptimizationMathematical ProgrammingWater Resources Systems managementSettore ICAR/02 - Costruzioni Idrauliche E Marittime E IdrologiaHydropower production
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