Browsing by Author "Sleiti, Ahmad K."
Now showing items 21-28 of 28
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Review of innovative approaches of thermo-mechanical refrigeration systems using low grade heat
Sleiti, Ahmad K.; Al-Ammari, Wahib A.; Al-Khawaja, Mohammed ( Hindawi , 2020 , Article)Cooling and refrigeration systems consume around 17% of the world-wide electricity. Enhancing the performance of these systems, using renewable energy resources and waste heat recovered from industrial processes, will lead ... -
Study of recirculating water-based and carbon-based working fluids on the combustion flow field and the cycle performances of semi-closed CO2-capturing Brayton-derived cycles
José Francisco, González Álvarez; Sleiti, Ahmad K.; Al-Ammari, Wahib A.; Alonso Fernández, Efrén ( Elsevier , 2022 , Article)The transition into new power technologies that utilize fossil fuels with near zero emissions to the ambient is an urgent need to mitigate the worldwide environmental problems. In this study, detailed analyses of carbon-based ... -
Study to identify computational fluid dynamics models for use in determining HVAC duct fitting loss coefficients
Salehi, Mohammad; Sleiti, Ahmad K.; Idem, Stephen ( Taylor and Francis Inc. , 2017 , Article)This article presents results from a systematic study to establish whether computational fluid dynamics techniques are capable of predicting pressure drop in close-coupled five-gore elbows having nominal diameters of 203 ... -
Supercritical Carbon Dioxide Power Cycle Integrated with Solar Power Tower and Oxy-Combustor
Sleiti, Ahmad K.; Al-Ammari, Wahib A.; Gamil, Ahmed I.; Al-Khawaja, Mohammed (2021 , Conference Paper)Power cycle that integrates solar power tower (SPT) system with direct oxy-combustion (DOC) supercritical CO2 cycle is proposed and investigated. In the SPT/DOC-sCO2 cycle (Cyc 3), the SPT works as preheater for the DOC/sCO2 ... -
Techno-economic assessment of low-carbon hydrogen exports from the Middle East to the Asia-Pacific, and Europe
Sleiti, Ahmad K.; Al-Ammari, Wahib A.; Musharavati, Farayi; Azizur Rahman, Mohammad ( Taylor & Francis , 2023 , Article)Hydrogen has the potential to play a major role in the global energy mix in the future and to achieve carbon-neutral targets by 2050. However, there is a lack of studies that investigate the economic feasibility of ... -
THERMODYNAMIC & THERMOECNOMIC OPTIMIZATION ANALYSIS OF NOVEL DIRECT OXY-COMBUSTION SUPERCRITICAL CO2 POWER CYCLES INTEGRATED WITH DRY AND WET PRECOOLER USING GENETIC ALGORITHM
HUSSEIN, HANEEN TAWFIQ (2022 , Master Thesis)As part of worldwide efforts to reduce the negative effects of global warming through the carbon neutrality plan by 2050 and implementation of the sustainability strategy set by Qatar National Vision 2030, three novel ... -
Transient 3D simulations of turbulent premixed flames of gas-to-liquid (GTL) fuel in a fan-stirred combustion vessel
Abdellatif M., Sadeq; Ahmed, Samer F.; Sleiti, Ahmad K. ( Elsevier , 2021 , Article)This work aims to conduct turbulent flame studies of GTL fuel and 50/50 diesel-GTLblend and compare them to diesel under a wide range of equivalence ratio (0.7 < Ф < 1.3) and turbulence intensities (0.5 m/s < u′ < 3.0 m/s). ... -
Turbulent Flames in Enclosed Combustion Chambers: Characteristics and Visualization - A Review
Sadiq, Abdellatif M.; Sleiti, Ahmad K.; Ahmed, Samer F. ( American Society of Mechanical Engineers (ASME) , 2020 , Article)Remarkable progress has been achieved in measuring the flame propagation rate accurately under laminar conditions, which can be used to predict turbulent flame propagation rates using some correlations fitted to experimental ...