Jafar Al-Zaili

ORCID: 0000-0003-4072-2107
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Research Areas
  • Solar Thermal and Photovoltaic Systems
  • Thermodynamic and Exergetic Analyses of Power and Cooling Systems
  • Energy and Environment Impacts
  • Combustion and flame dynamics
  • Refrigeration and Air Conditioning Technologies
  • Hybrid Renewable Energy Systems
  • Advanced Combustion Engine Technologies
  • Advanced Aircraft Design and Technologies
  • Phase Change Materials Research
  • Solar Radiation and Photovoltaics
  • Turbomachinery Performance and Optimization
  • Photovoltaic System Optimization Techniques
  • Fluid Dynamics and Turbulent Flows
  • Spacecraft and Cryogenic Technologies
  • Heat transfer and supercritical fluids
  • Advanced Thermodynamics and Statistical Mechanics
  • Global Energy and Sustainability Research
  • Energy, Environment, and Transportation Policies
  • Oil, Gas, and Environmental Issues
  • Microgrid Control and Optimization
  • Heat Transfer and Optimization
  • Chemical Looping and Thermochemical Processes
  • Carbon Dioxide Capture Technologies
  • Thermochemical Biomass Conversion Processes
  • Islanding Detection in Power Systems

City, University of London
2017-2024

University of London
2018-2021

Due to the growing demand for electricity and increasing number of consumers who can produce energy (prosumers) using photovoltaic systems today, generated by prosumers be utilized in microgrid instead selling it main utility grid. Pricing is one most important mechanisms motivating interact with each other microgrid. Many works have proposed different pricing models that mostly focus on optimizing prosumers' behavior usage costs. However, require constant involvement end-user adjust...

10.1016/j.apenergy.2023.121148 article EN cc-by Applied Energy 2023-04-27

The effects of greenhouse gas emissions, urban air pollution, and rising transport fuel prices, on the low-income capita in India, necessitate appropriate measures to ensure commodities are sustainably available. This paper presents a study whereby biodiesel blends produced from waste cooking oil optimised for use medium-duty commercial vehicles, accounting factors production capacity, economics, approximated engine characteristics. An artificial neural network model, trained with...

10.1016/j.energy.2023.127021 article EN cc-by Energy 2023-02-23

This paper presents an analysis and experimental investigation of the effect integrating Phase Change Material (PCM) within a heat exchanger Micro Combined Heat Power (Micro-CHP) system intended for residential applications. A commonly used Micro-CHP layout is replicated in test rig to characterise performance two alternative arrangements. The first conventional arrangement where exhaust gas produced by prime mover directed air-to-water water store it tank. In second arrangement, PCM...

10.1016/j.energy.2024.131606 article EN cc-by Energy 2024-05-12

This paper focuses on the optimisation of small-scale micro gas turbines totally powered by concentrated solar power to generate electricity in range 5–30kWe. The objective this is investigate potential such systems for generation at reasonable costs. computational model uses a component-based approach thermodynamic performance simulation and features an integrated economic which allows evaluation indicators including levelised cost electricity. coupled genetic algorithm framework find...

10.1016/j.energy.2022.123873 article EN cc-by Energy 2022-04-05

In the framework of European Optimised Microturbine Solar Power system (OMSoP) project, a novel energy for solar electricity production was developed, based on integration dish technology with Micro Gas Turbines (MGT). A pilot plant capacity 5–7 kWe realized and installed at ENEA Casaccia site (Rome) went under testing to validate feasibility improve current design. The present work deals development quasi-state model, built in Engineering Equation Solver environment, composed different...

10.3390/en15031059 article EN cc-by Energies 2022-01-31

The concept of combining small micro gas turbines with solar dish concentrator is being developed by the EU funded project OMSoP [1] to benefit from advantages higher efficiency, power density and reliability. This paper focuses on units which are only powered irradiation aims identify suitable means control that would minimize output variations achieve maximum annual generated electricity. Three different strategies have been proposed studied in this work: regulation based variation load...

10.1115/gt2017-63987 article EN 2017-06-26

The aim of this paper is to present a thermo-economic model microturbine for solar dish applications, which demonstrates the applicability and accuracy off-design performance evaluation techno-economic optimisation purposes. built using an object-oriented programming approach. Each component represented class made functions that perform one-dimensional physical design, analysis cost evaluation. Compressor, recuperator, receiver turbine models are presented validated against experimental data...

10.3390/en11113199 article EN cc-by Energies 2018-11-18

Abstract The combination of small micro gas turbines with solar dish concentrators (CSP-MGT) benefits from the high-power density and reliability. Intrinsically, intermittent irradiation leads to transient operation. main aim this paper is present development a dynamic model that can evaluate behaviour CSP-MGT system during start-up shut-down phase. be further used design controller predict performance system. A mathematical was developed, which comprises several subsystems are...

10.1115/gt2022-79059 article EN 2022-06-13

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10.2139/ssrn.4796458 preprint EN 2024-01-01

Solar power microturbines are required to produce steady despite the fluctuating solar radiation, with concerns on dispatchability of such plants where thermal energy storage may offer a solution address issue. This paper presents mathematical model for performance prediction honeycomb sensible-heat designed application concentrated microturbine. The focus in is consider laminar developing boundary layers at entry flow channels, which could have profound effect heat-transfer coefficient due...

10.3390/en12203968 article EN cc-by Energies 2019-10-18

Abstract Decentralized power generating systems, such as micro-gas turbines (MGT) for micro combined heat and (CHP), can contribute to achieving the global energy emission targets thanks features like low emissions, primary savings, fuel flexibility. It also help increase share of renewables due its ability easily integrate with renewable systems. Micro gas turbines, despite being a promising technology, have achieved very limited market success barriers high investment costs lack supporting...

10.1115/gt2023-101952 article EN cc-by 2023-06-26

This paper presents an experimentally validated computational study of heat transfer within a compact recuperated Brayton cycle microturbine. Compact microturbine designs are necessary for certain applications, such as solar dish concentrated power systems, to ensure robust rotodynamic behaviour over the wide operating envelope. aims at studying 6 kWe micro gas turbine provide better understanding effect on its components’ performance. also investigates thermal losses performance part system...

10.3390/en14206745 article EN cc-by Energies 2021-10-16
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