Recent Developments in the Design, Modeling, Optimization, and Control of Electro-mechanical Inlet Valves for Gas Expanders

Published: Aug. 5, 2024

The ever-growing concerns about global warming and the rapid depletion of fossil fuels have triggered a rising interest in research for cleaner, more efficient cost-effective energy generation. Organic Rankine cycle systems immense potential to become strong alternative conventional methods However, such systems’ efficiency is limited by performance incorporated gas expanders or prime movers. Conventional often utilize ports cam-operated valves. Ported offer controllability, produce high emissions causing large amount heated compressed be wasted. Cam-operated valves, contrast, increase expansion compared ported expanders, however, they no variability adaptability changes system parameters as pressure, temperature, dryness fraction, load variation name few. On positive note, this issue can addressed adopting variable timing fast-operating, control valve with an accurate adaptive mechanism at expander inlet. A properly designed controlled greatly improve pave way low-cost This manuscript provides comparative review recent progress on design, modeling, optimization, aspects valves expanders. clear pathway scope further development also drawn based present state art.

Language: Английский

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A Literature Review of the Design, Modeling, Optimization, and Control of Electro-Mechanical Inlet Valves for Gas Expanders

Energies, Journal Year: 2024, Volume and Issue: 17(18), P. 4569 - 4569

Published: Sept. 12, 2024

The ever-growing concerns about global warming and the rapid depletion of fossil fuels have triggered a rising interest in research for cleaner, more efficient, cost-effective energy generation. Organic Rankine cycle systems immense potential to become strong alternative conventional methods However, such systems’ efficiency is limited by performance incorporated gas expanders or prime movers. Conventional often utilize ports cam-operated valves. Ported offer controllability produce high emissions, causing large amount heated compressed be wasted. Cam-operated valves, contrast, increase expansion compared ported expanders; however, they no variability adaptability changes system parameters as pressure, temperature, dryness fraction, load variation, name few. On positive note, this issue can addressed adopting variable timing fast-operating, control valve with an accurate adaptive mechanism at expander inlet. A properly designed controlled greatly improve pave way efficient low-cost This manuscript provides comparative review recent progress on design, modeling, optimization, aspects valves expanders. clear pathway scope further development also drawn based present state art.

Language: Английский

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Multi-objective optimization design of low-power-driven, large-flux, and fast-response three-stage valve

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: Sept. 16, 2024

Intrinsically safe solenoids drive solenoid valves in coal mining equipment. The low power consumption of these limits the response time valves. Additionally, viscosity and high susceptibility to dust contamination emulsion fluid often lead leakage sticking hydraulic This study proposes a low-power-driven, large-flux, fast-response three-stage valve structure with an internal displacement feedback device address issues. critical parameters were optimized using novel multi-objective optimization algorithm. A prototype was manufactured based on obtained subjected simulation experimental verification. results demonstrate that has opening 21 ms, closing 12 maximum flow rate approximately 225 L/min. driving this is less than 1.2 W. By utilizing for cylinder control, positioning accuracy ± 0.15 mm achieved. comparative test show proposed structural control error fluctuation smaller 3/4 proportional valve.

Language: Английский

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Development of a multi-stage, multi-product solid supply chain network design and solution with meta-heuristic algorithms

Soft Computing, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 4, 2024

Language: Английский

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A metaheuristic approach to model the effect of temperature on urban electricity need utilizing XGBoost and modified boxing match algorithm

AIP Advances, Journal Year: 2024, Volume and Issue: 14(11)

Published: Nov. 1, 2024

A nonlinear and complicated phenomenon of the relationship between urban electricity needs temperature influences operation planning power systems. Ensuring effectiveness reliability supply requires precise prediction in various consumption scenarios. In this study, an innovative method is used to deal with complex changes. paper, initial contributions focus on integration two powerful techniques: Modified Boxing Match (MBM) algorithm XGBoost model, which a convolutional neural network. The these approaches facilitates extraction advanced features allows relationships data. One notable aspects work introduction new leapfrog rule MBM algorithm, significantly improves local exploration accelerates convergence, leading more accurate demand forecasts. model’s hyperparameters are optimized using achieve best possible solution. proposed was tested 23 well-known classical benchmark function methods, results indicate that recommended technique robust. As dependable efficient tool for modeling predicting temperature–electricity needs, suggested can be utilized.

Language: Английский

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Mechanical behavior and optimization of multi-objective reliability-based design with simultaneous multiple response for a portal-type drilling derrick on fixed platforms

Ocean Engineering, Journal Year: 2024, Volume and Issue: 315, P. 119699 - 119699

Published: Nov. 25, 2024

Language: Английский

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Research on building energy-saving based on GA-BP coupled improved multi-objective whale optimization algorithm

Energy and Buildings, Journal Year: 2024, Volume and Issue: unknown, P. 115141 - 115141

Published: Nov. 1, 2024

Language: Английский

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Modelling and multi-objective optimal state-dependent control of a continuous double-bioreactor in series fermentation

Mathematics and Computers in Simulation, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 1, 2024

Language: Английский

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