Model-Based Optimization of a Sliding Vane Rotary Pump for Micro-Organic Rankine Cycle DOI Creative Commons
Fabio Fatigati, Giammarco Di Giovine, Roberto Cipollone

и другие.

Energies, Год журнала: 2024, Номер 18(1), С. 97 - 97

Опубликована: Дек. 30, 2024

The residential sector is one of the main sectors responsible for atmospheric emission CO2. Hence, a significant effort required to develop technological solutions enable decarbonization. integration Organic Rankine Cycle (ORC)-based units with renewable sources at micro-scale cogeneration commonly believed be most important alternatives. Indeed, an ORC-based unit allows exploitation low-temperature heat in production electricity. low power scale this application (1–5 kW) and severe operating conditions call reliable proper design components. Particularly critical pump, as experimental analyses available literature show its efficiency rarely exceeds values 0.3. suitable technology volumetric, among those available, sliding vane types are interesting candidates. However, leads erosion produced by expander, limiting achievement high-efficiency values. What more, literature, there lack development optimization strategies improve performance machine. To fill knowledge gap, present paper optimized rotary pump was designed. Thanks comprehensive experimentally validated model, assessed wide range conditions. Results confirmed that disk-shaped configuration also ensures best achieved small-scale pumps. Moreover, model allowed detailed analysis efficiency, evaluating fluid dynamic mechanical behaviors. demonstrated weakest point which between 0.45 0.55. involving four blades, adoption graphite clearance gap rotor face casing 10 μm. These improved up 25%, maximum value equal 0.50, close double respect usual A final remark concerns robustness machine, weak variations even when were considered.

Язык: Английский

Multi-functional hybrid energy system for zero-energy residential buildings: Integrating hydrogen production and renewable energy solutions DOI Creative Commons
Saleh Mobayen, Ehsanolah Assareh, Nima Izadyar

и другие.

International Journal of Hydrogen Energy, Год журнала: 2025, Номер 102, С. 647 - 672

Опубликована: Янв. 11, 2025

Язык: Английский

Процитировано

4

The Impact of Integrating Variable Renewable Energy Sources into Grid-Connected Power Systems: Challenges, Mitigation Strategies, and Prospects DOI Creative Commons

Emmanuel Ejuh,

Kang Roland Abeng,

Chu Donatus Iweh

и другие.

Energies, Год журнала: 2025, Номер 18(3), С. 689 - 689

Опубликована: Фев. 2, 2025

Although the impact of integrating solar and wind sources into power system has been studied in past, chaos caused by energy generation not yet had broader mitigation solutions notwithstanding their rapid deployment. Many research efforts using prediction models have developed real-time monitoring variability machine learning predictive algorithms contrast to conventional methods studying variability. This study focused on causes types variability, challenges, strategies used minimize grids worldwide. A summary top ten cases countries that successfully managed electrical presented. Review shows most success embraced advanced storage, grid upgrading, flexible mix as key technological economic strategies. seven-point conceptual framework involving all stakeholders for managing networks increasing variable renewable (VRE)-grid integration proposed. Long-duration virtual plants (VPPs), smart infrastructure, cross-border interconnection, power-to-X, flexibility are takeaways achieving a reliable, resilient, stable grid. review provides useful up-to-date information researchers industries investing energy-intensive

Язык: Английский

Процитировано

2

Projection of Electricity Generation Profiles and Carbon Emissions Towards 2050: A Malaysia Context DOI Creative Commons

Malcolm Isaac Fernandez,

Yun Ii Go, Wolf‐Gerrit Früh

и другие.

Energy Sustainable Development/Energy for sustainable development, Год журнала: 2025, Номер 85, С. 101681 - 101681

Опубликована: Фев. 20, 2025

Язык: Английский

Процитировано

1

Styrene and Its Derivatives Used in Proton Exchange Membranes and Anion Exchange Membranes for Fuel Cell Applications: A Review DOI Creative Commons
Muhammad Rehman Asghar,

Ayesha Zahid,

Huaneng Su

и другие.

Batteries, Год журнала: 2025, Номер 11(4), С. 134 - 134

Опубликована: Март 29, 2025

The proton exchange membrane (PEM) is a critical component of fuel cells, responsible for controlling the flow protons while minimizing crossover through its channels. commercial commonly used in cells made Nafion, which expensive and prone to swelling when contact with water. To address these limitations, various polymers have been explored as alternatives replace costly Nafion membrane. Styrene, versatile cost-effective material, has emerged promising candidate. It can be modified into different forms meet requirements cell aromatic rings styrene copolymerize hydrophilic functional groups, enhancing water (H2O) uptake, conductivity, ion capacity (IEC) Additionally, hydrophobic nature helps maintain structural integrity membrane’s channels, reducing excessive crossover. flexible chains facilitate attachment such sulfonic further improving IEC, thermal stability, mechanical strength, oxidative stability. This review article explores application derivatives membranes, focus on (PEMFCs), direct methanol (DMFCs), anion (AEMFCs).

Язык: Английский

Процитировано

0

A case for supporting distributed wind energy deployment in commercial-scale potato production based on field measurements in Ireland DOI Creative Commons
Raymond Byrne, Paul MacArtain,

G. Reaburn

и другие.

Cleaner Energy Systems, Год журнала: 2025, Номер unknown, С. 100186 - 100186

Опубликована: Март 1, 2025

Язык: Английский

Процитировано

0

Design the Synergy of Rare Earth Metal Based Ce2S3@Ni3S2 Hybrid Electrode Materials for Hydrogen Evolution and Supercapacitor Application: Dual Excellence DOI

Zeshan Ali Sandhu,

Muhammad Danish, Umme Farwa

и другие.

Journal of Inorganic and Organometallic Polymers and Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 6, 2025

Язык: Английский

Процитировано

0

Modelling and Development of Utility-Scale Energy System for Malaysia with Advanced Energy Balance Analysis: Supply, Demand and Trade DOI Creative Commons

Malcolm Isaac Fernandez,

Yun Ii Go, M. L. Dennis Wong

и другие.

Renewable Energy, Год журнала: 2025, Номер unknown, С. 123013 - 123013

Опубликована: Апрель 1, 2025

Язык: Английский

Процитировано

0

Model-Based Optimization of a Sliding Vane Rotary Pump for Micro-Organic Rankine Cycle DOI Creative Commons
Fabio Fatigati, Giammarco Di Giovine, Roberto Cipollone

и другие.

Energies, Год журнала: 2024, Номер 18(1), С. 97 - 97

Опубликована: Дек. 30, 2024

The residential sector is one of the main sectors responsible for atmospheric emission CO2. Hence, a significant effort required to develop technological solutions enable decarbonization. integration Organic Rankine Cycle (ORC)-based units with renewable sources at micro-scale cogeneration commonly believed be most important alternatives. Indeed, an ORC-based unit allows exploitation low-temperature heat in production electricity. low power scale this application (1–5 kW) and severe operating conditions call reliable proper design components. Particularly critical pump, as experimental analyses available literature show its efficiency rarely exceeds values 0.3. suitable technology volumetric, among those available, sliding vane types are interesting candidates. However, leads erosion produced by expander, limiting achievement high-efficiency values. What more, literature, there lack development optimization strategies improve performance machine. To fill knowledge gap, present paper optimized rotary pump was designed. Thanks comprehensive experimentally validated model, assessed wide range conditions. Results confirmed that disk-shaped configuration also ensures best achieved small-scale pumps. Moreover, model allowed detailed analysis efficiency, evaluating fluid dynamic mechanical behaviors. demonstrated weakest point which between 0.45 0.55. involving four blades, adoption graphite clearance gap rotor face casing 10 μm. These improved up 25%, maximum value equal 0.50, close double respect usual A final remark concerns robustness machine, weak variations even when were considered.

Язык: Английский

Процитировано

0