Fundamental Modeling of a PEM Fuel Cell Integrated System: Experimental Validation and Multiobjective Optimization

Energy & Fuels, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 20, 2025

Language: Английский

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Modelling and optimising of MED-TVC seawater desalination plants assisted with electric heaters

Water Resources and Industry, Journal Year: 2024, Volume and Issue: 32, P. 100262 - 100262

Published: July 6, 2024

One major issue with MED-TVC systems, a widely used thermal-based desalination technology, is their high energy consumption and carbon emissions. This underscores the importance of optimising integrating these technologies sustainable systems to utilize waste heat enhance performance plants effectively. research aimed optimize address environmental challenges in areas insufficient sunlight, unstable weather conditions, limited economic resources. To this end, model an electric heater for generating thermal coupled optimized plant was proposed. The section by incorporating additional ejector final stage demonstrating increase over 11 % evacuating non-condensable gases from last effect increasing product water up 14.89 %. Regarding design heating elements heaters, use one-plus-two U-tubes helical baffles more efficient than multi-layer segmental as improved pressure loss fluid 25 increased transfer coefficient 18 power also equipped off-grid system provide necessary equipment proposed model. In analysis employing parabolic trough solar collector not only were direct costs heaters almost equal just 40 approach but required 50 case.

Language: Английский

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Dynamics and global optimization of an integrated PEM fuel cell unit: cost, efficiency and power generation perspective

Process Safety and Environmental Protection, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

Language: Английский

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A Carbon-Neutral Highly Productive Solar-Powered Desalination Process: Improving Economic Performance with Carbon Pricing

Industrial & Engineering Chemistry Research, Journal Year: 2024, Volume and Issue: 63(20), P. 9107 - 9123

Published: May 7, 2024

This work proposes a carbon-neutral desalination process. For this, at first rigorous theoretical framework for multieffect coupled with thermal vapor compressor (MED-TVC) is developed to validate the data set of plant operated in Libya and show outperformance over an existing model. A mechanical (MVC) proposed integrate MED, hot brine distillate withdrawn from that MED are employed feed preheating. multiobjective genetic algorithm -based optimizer formulated three conflicting objectives, namely, productivity, CO2 emission, production cost includes carbon tax. The MED-MVC outperforms MED-TVC terms all those performance metrics. Subsequently, we move transform this process unit by introducing solar energy generate makeup steam electricity. innovative sustainable zero-emission secures higher productivity lower than scenario.

Language: Английский

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Solar-Driven Thermal and Mechanical Vapor Compressor Integrated Desalination System: Zero Emission, High Yield, and Cost Reduction

ACS Sustainable Chemistry & Engineering, Journal Year: 2024, Volume and Issue: 12(24), P. 9180 - 9192

Published: June 5, 2024

Water scarcity has become one of the top risks, along with global warming, primarily caused by increasing energy usage. The problem desalinating water that is a highly intensive process gets intensified due to its complex water-energy nexus. Our key objective break this nexus introducing hybrid solar-thermal multieffect desalination system. More specifically, unlock thermodynamic limitation and acquire benefits both thermal (TVC) mechanical vapor compressor (MVC), an attempt made hybridize them for integration distillation (MED) consequently enhances yield water. Ensuring globally optimal performance MED-TVC-MVC configuration, it proposed further integrate solar cell aim achieving carbon neutrality at cost increased capital investment. Imposing tax inevitable, adding this, we finally explore techno-economic feasibility sustainable MED-TVC-MVC. This novel system secures zero emission reduced freshwater production (FWPC) enhanced recovery ratio respect real-time MED-TVC plant.

Language: Английский

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Solar Thermal-Based Sustainable Desalination Technology: Validation and Optimal Process Configuration

ACS ES&T Water, Journal Year: 2024, Volume and Issue: 4(11), P. 5013 - 5026

Published: Oct. 21, 2024

In this contribution, a novel multieffect distillation (MED) system integrated with heat pump-assisted vapor recompressor (VRC) for feed preheating is proposed the first time seawater desalination. For this, dynamic model of base MED-ejector-assisted thermal compression (MED-TVC) unit formulated. Having satisfactory predictability plant data and outperformance over an existing model, work introduces VRC by replacing TVC to employ it in condenser coupled last effect MED. To acquire benefits associated pump along optimal designing MED-VRC configuration, multiobjective optimization strategy developed three conflicting objectives, namely, total distillate (freshwater) production, freshwater production cost, CO2 emission, under framework genetic algorithm. Securing better performance standalone MED-TVC system, attempt made make industrial-scale process carbon-neutral introducing solar steam generation electricity run VRC. This sustainable technology secures zero-emission at same productivity but costs on higher side scenario.

Language: Английский

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Dynamic analysis and optimization design of parallel/cross-feed MED-TVC systems considering fouling characteristics

International Journal of Heat and Mass Transfer, Journal Year: 2024, Volume and Issue: 238, P. 126490 - 126490

Published: Nov. 28, 2024

Language: Английский

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