Reduced-Order Modeling (ROM) of a Segmented Plug-Flow Reactor (PFR) for Hydrogen Separation in Integrated Gasification Combined Cycles (IGCC) DOI Open Access
Osama A. Marzouk

Processes, Год журнала: 2025, Номер 13(5), С. 1455 - 1455

Опубликована: Май 9, 2025

In an integrated gasification combined cycle (IGCC), a process produces gas stream from solid fuel, such as coal or biomass. This (syngas synthesis gas) resulting the contains carbon monoxide, molecular hydrogen, and dioxide (other gaseous components may also be present depending on gasified fuel gasifying agent). Separating hydrogen this syngas has advantages. One of methods to separate is selective permeation through palladium-based metal membrane. separation complicated it depends nonlinearly various variables. Thus, desirable develop simplified reduced-order model (ROM) that can rapidly estimate performance under operational conditions, preliminary stage computer-aided engineering (CAE) in chemical processes sustainable industrial operations. To fill gap, we here proposed procedure for one-dimensional steady plug-flow reactor (PFR) use investigate membrane (MR), produced (IGCC). model, (a feed stream) enters one side into retentate zone, while nitrogen sweep opposite neighbor permeate zone. The two zones are separated by permeable palladium surfaces selectively hydrogen. After analyzing profile base case (300 °C uniform temperature, 40 atm absolute pressure, 20 pressure), temperature module, retentate-side permeate-side pressure varied individually their influence investigated. all simulation cases, fixed targets 95% recovery 40% mole-fraction at exit demanded. module length allowed change order satisfy these targets. Other dependent permeation-performance variables investigated include logarithmic mean pressure-square-root difference, apparent permeance, efficiency factor permeation. contributions our study linked fields applications, production, gasification, analytical modeling, numerical analysis. addition separation, linear nonlinear regression models derived obtained results. work gives general insights via membranes (MR). For example, most effective improve performance. Increasing value 120 results proportional gain permeated mass flux, with about 0.05 kg/m2.h gained per 1 increase decreasing bar 0.2 causes flux exponentially 1.15 kg/m2.h. 5.11 United Nations Sustainable Development Goal (SDG) numbers 7, 9, 11, 13.

Язык: Английский

Aerial e-mobility perspective: Anticipated designs and operational capabilities of eVTOL urban air mobility (UAM) aircraft DOI Open Access
Osama A. Marzouk

Edelweiss Applied Science and Technology, Год журнала: 2025, Номер 9(1), С. 413 - 442

Опубликована: Янв. 4, 2025

We collected data about 13 urban air mobility (UAM) electric vertical take-off and landing (eVTOL) aircraft from 12 UAM companies in the world. While none of these models has yet reached a large-scale commercial operation (particularly as taxis), some them progressed well certification process may have their widely operated within few years. This article focuses on variability configurations eVTOL for aerial e-mobility; such single-fixed-wing, tandem-tilt-wing, canard wing, fixed-rotor fixed-wing, full tilt-rotor, partial V-shaped tail, tailless, twin conventional tail assembly, distributed propulsion, multicopter, rear forward thrust propeller, ducted fans, hybrid airplane-helicopter design. The covered here are: (1) EH216-S (by EHang), (2) VoloCity Volocopter), (3) Lilium Jet Lilium), (4) VoloRegion (5) CityAirbus NextGen Airbus), (6) Passenger Air Vehicle - PAV Boeing), (7) S-A2 Hyundai), (8) Joby Aviation), (9) VX4 Vertical Aerospace Group), (10) Midnight Archer (11) Eve Mobility), (12) Jaunt (13) Generation 6 Wisk Aero). Out e-mobility and/or taxis, we found that 11 utilize wing configuration, while only two use wingless multirotor concept (as hobbyist drones). A fixed-wing design is associated with faster travel speed, at expense added restrictions maneuvering low-speed (or hovering). Six are intended to an onboard human pilot, remaining seven designed be pilotless. One model demonstrated ability hydrogen clean source energy through fuel cell system.

Язык: Английский

Процитировано

2
Summary of the 2023 (1st edition) Report of TCEP (Tracking Clean Energy Progress) by the International Energy Agency (IEA), and Proposed Process for Computing a Single Aggregate Rating DOI Creative Commons
Osama A. Marzouk

E3S Web of Conferences, Год журнала: 2025, Номер 601, С. 00048 - 00048

Опубликована: Янв. 1, 2025

We provide a summary of the progress all 53 assessed components describing global alignment with Net Zero Emissions by 2050 Scenario (NZE) International Energy Agency (IEA), an intermediate trajectory scope 2030. The (grouped in eight categories) cover sectors (such as Transport, and Buildings), subsectors Aviation, Building Envelopes), technologies Biofuels, Electrification), infrastructure cross-cutting strategies CO2 Transport Storage, Electrolyzers). For each component, IEA assigned one three qualitative levels; namely “On track”, “More efforts needed”, or “Not on track”. IEA’s assessment results were made publicly available form online web-based report, titled “Tracking Clean Progress”, TCEP, which was published 12/July/2023. Out TCEP’s components, only rated these are (1) Solar Photovoltaic (PV), (2) Electric Vehicles (EV), (3) Lighting. remaining 50 TCEP; 28 22 propose quantitative aggregate numerical score to describe overall clean energy transition reflected TCEP we compute it 2.23/4 (or 55.7%). Finally, present selected historical records (based data) about satisfactory for transition.

Язык: Английский

Процитировано

1
Wind Speed Weibull Model Identification in Oman, and Computed Normalized Annual Energy Production (NAEP) From Wind Turbines Based on Data From Weather Stations DOI Creative Commons
Osama A. Marzouk

Engineering Reports, Год журнала: 2025, Номер 7(3)

Опубликована: Март 1, 2025

ABSTRACT Using observation records of wind speeds from weather stations in the Sultanate Oman between 2000 and 2023, we compute estimators two Weibull distribution parameters (namely, distribution's shape parameter scale parameter) 10 station locations within eight Omani governorates. The their corresponding governorates are Seeb (in Muscat), Salalah Dhofar), Buraimi Al Buraimi), Masirah Ash Sharqiyah South), Thumrait Sur Khasab Musandam), Sohar Sohar), Fahud Az Zahirah), Saiq Ad Dakhiliyah). obtained speed distributions at these then used to predict annual energy production (AEP) for a proposed reference amount 1 MWp turbine capacity, this specific AEP is designated here by term “normalized (NAEP).” direction also analyzed statistically over same period identify more probable directions. Four were clearly distinguishable as being windy compared others. simulated probability exceeding feasible 6 m/s (21.6 km/h) 41.71% Thumrait, 37.77% Masirah, 29.53% Sur, 17.03% Fahud. NAEP values four estimated 1.727 GWh/MWp/year, 1.419 1.038 0.602 GWh/MWp/year; respectively. location not only fastest (on average) among selected locations, but most unidirectional, blowing almost always south–south‐east (SSE) direction; both features make non‐coastal southern Oman, with an altitude about 467 m, attractive site utility‐scale farms. We analyze data port city Duqm; show that there 24.04%, 0.927 approximately south–south‐west (SSW) time. When photovoltaic (PV) solar systems, onshore systems installed capacity appear be less effective Oman. This study closes gap field where no similar standardized one propose present.

Язык: Английский

Процитировано

1
Edelweiss Applied Science and Technology DOI
Osama A. Marzouk

SSRN Electronic Journal, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

Язык: Английский

Процитировано

0
Reduced-Order Modeling (ROM) of a Segmented Plug-Flow Reactor (PFR) for Hydrogen Separation in Integrated Gasification Combined Cycles (IGCC) DOI Open Access
Osama A. Marzouk

Processes, Год журнала: 2025, Номер 13(5), С. 1455 - 1455

Опубликована: Май 9, 2025

In an integrated gasification combined cycle (IGCC), a process produces gas stream from solid fuel, such as coal or biomass. This (syngas synthesis gas) resulting the contains carbon monoxide, molecular hydrogen, and dioxide (other gaseous components may also be present depending on gasified fuel gasifying agent). Separating hydrogen this syngas has advantages. One of methods to separate is selective permeation through palladium-based metal membrane. separation complicated it depends nonlinearly various variables. Thus, desirable develop simplified reduced-order model (ROM) that can rapidly estimate performance under operational conditions, preliminary stage computer-aided engineering (CAE) in chemical processes sustainable industrial operations. To fill gap, we here proposed procedure for one-dimensional steady plug-flow reactor (PFR) use investigate membrane (MR), produced (IGCC). model, (a feed stream) enters one side into retentate zone, while nitrogen sweep opposite neighbor permeate zone. The two zones are separated by permeable palladium surfaces selectively hydrogen. After analyzing profile base case (300 °C uniform temperature, 40 atm absolute pressure, 20 pressure), temperature module, retentate-side permeate-side pressure varied individually their influence investigated. all simulation cases, fixed targets 95% recovery 40% mole-fraction at exit demanded. module length allowed change order satisfy these targets. Other dependent permeation-performance variables investigated include logarithmic mean pressure-square-root difference, apparent permeance, efficiency factor permeation. contributions our study linked fields applications, production, gasification, analytical modeling, numerical analysis. addition separation, linear nonlinear regression models derived obtained results. work gives general insights via membranes (MR). For example, most effective improve performance. Increasing value 120 results proportional gain permeated mass flux, with about 0.05 kg/m2.h gained per 1 increase decreasing bar 0.2 causes flux exponentially 1.15 kg/m2.h. 5.11 United Nations Sustainable Development Goal (SDG) numbers 7, 9, 11, 13.

Язык: Английский

Процитировано

0