Browsing by Author "Ahmad K., Sleiti"
Now showing items 1-13 of 13
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CO2 transportation safety regulations and energy requirement
( Elsevier , 2022 , Book chapter)Carbon dioxide transportation from the capture point to the utilization or storage point plays a key function in carbon capture and storage systems. CO2 transportation modes (onshore pipelines, offshore pipelines, and ... -
A combined thermo-mechanical refrigeration system with isobaric expander-compressor unit powered by low grade heat – Design and analysis
( Elsevier , 2020 , Article)Refrigeration and air conditioning systems consume about 17% of the world-wide electricity and their conventional refrigerants cause ozone depletion and global warming. In this study a novel thermo-mechanical refrigeration ... -
Direct-fired oxy-combustion supercritical-CO2 power cycle with novel preheating configurations -thermodynamic and exergoeconomic analyses
( Elsevier , 2021 , Article)Energy, exergy, and exergoeconomic analyses of novel direct-fired oxy-fuel combustion supercritical CO2 cycle with preheating and dry-cooling are introduced. Novelty aspects of the study include the preheating process ... -
Energy and exergy analyses of novel supercritical CO2 Brayton cycles driven by direct oxy-fuel combustor
( Elsevier , 2021 , Article)This study addresses major research gaps related to supercritical carbon dioxide (sCO2) power cycles including the shortcomings due to adding extra components, the high operating temperatures and the lack of studies on ... -
Experimental investigation on the performance of a novel thermo-mechanical refrigeration system driven by an expander-compressor unit
( Elsevier , 2022 , Article)Operating thermos-mechanical refrigeration (TMR) ejector-based and organic Rankine cycle-based refrigeration systems at ultra-low temperature heat source (60 °C to 100 °C) is challenging and limited by their low coefficient ... -
Experimental investigations on the performance of a thermo-mechanical refrigeration system utilizing ultra-low temperature waste heat sources
( Elsevier , 2023 , Article)Experimental studies that investigate the utilization of ultra-low temperature (between 48 °C and 120 °C) waste heat, which forms 25 % of the global unrecovered waste heat, to drive thermal cooling systems are rare. Thus, ... -
Integrated novel solar distillation and solar single-effect absorption systems
( Elsevier , 2021 , Article)Novel hybrid single-slope solar distillation systems integrated with single-effect solar absorption cooling system are designed, analyzed and optimized for production of cooling effect and freshwater, simultaneously. The ... -
Novel integration between propane pre-cooled mixed refrigerant LNG process and concentrated solar power system based on supercritical CO2 power cycle
( Elsevier , 2023 , Article)Liquefaction of natural gas (LNG) is an energy-intensive process with large CO2 emissions. This study addresses these problems by introducing a novel hybrid integration between the propane pre-cooled mixed-refrigerant ... -
A novel solar integrated distillation and cooling system – Design and analysis
( Elsevier , 2020 , Article)To meet the high cooling and fresh water demands in hot and arid regions, a novel integrated solar cooling and solar distillation system is introduced. The system consists of a solar ejector cooling system integrated with ... -
Off-design performance analysis of combined CSP power and direct oxy-combustion supercritical carbon dioxide cycles
( Elsevier , 2021 , Article)The solar power tower (SPT) has the potential to achieve high efficiency and large-scale power production due to its high achievable temperatures. However, thermal energy storage (TES) is required to solve the intermittency ... -
Systematic thermodynamic approach for designing mixed refrigerants used in hydrogen precooling process
( Elsevier , 2022 , Article)Designing an optimal mixed-refrigerant (MR) composition for any cryogenic refrigeration process plays a key role in the process overall performance. However, the existing approaches of developing mixed-refrigerants for ... -
Theoretical and experimental study on the selection of pure and mixed refrigerants for a power-cooling system driven by ultra-low-grade heat
( Elsevier , 2023 , Article)This study theoretically and experimentally evaluates the performance of a system that combines an organic Rankine cycle (ORC) and a vapor compression cycle (VCC) driven by ultra-low-grade heat (ULGH). A systematic method ... -
Thermoeconomic and optimization analyses of direct oxy-combustion supercritical carbon dioxide power cycles with dry and wet cooling
( Elsevier , 2021 , Article)Oxy-combustion supercritical CO2 power cycles have the advantages of high-energy efficiency and near-zero pollutant emissions. Thus, these cycles are considered as an efficient way to reduce CO2 emissions while maintaining ...
