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Showing 1 to 10 of 10 for “"Supercritical carbon dioxide (sCO2)"”.
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Thermohydraulic Performance of Supercritical Carbon Dioxide (sCO2) in Horizontal Enhanced Surface Tubes
<p>Supercritical carbon dioxide (sCO2) has emerged as a promising working fluid for power generation and refrigeration systems due to its favorable thermophysical behavior near the pseudocritical region (Lemmon et al., 2018). However, in this region abrupt variations in density, viscosity, and …
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Thermal Boundary Condition Effects On Local Supercritical CO2 Heat Transfer Trends In Tubes
<p>Supercritical carbon dioxide (sCO2) is a promising heat transfer fluid for the refrigeration and power generation industries due to its unique thermal properties and low environmental impact. To understand it as an alternative to traditional working fluids, the thermophysical and heat transfer …
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Design and Characterization of a High pressure Flow Loop for Heat Transfer Experiments of Supercritical Carbon Dioxide
<p>Supercritical carbon dioxide (sCO2) sees heightened heat transfer characteristics near its critical point due to its drastically changing thermophysical properties. Conventional single phase heat transfer theory was not developed to capture this nonlinear variation in properties and cannot …
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On the Local Heat Transfer Behavior of Supercritical Carbon Dioxide
… study of the local heat transfer behavior of supercritical carbon dioxide (sCO2) is performed. Flows relevant to heat transfer devices, such as sCO2 heaters, recuperators, and internally cooled turbine blades are studied, with particular attention paid to data reduction methodology, and the …
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Thermal Management with Supercritical Carbon Dioxide under Extreme Applications
… system efficiency and reliability.</p> <p>Supercritical fluids, particularly supercritical carbon dioxide (sCO2), have received significant attention for various applications due to their unique thermodynamic properties near the critical point. By using sCO2 as a working fluid, systems can …
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Integrating fluidized bed heat exchangers and particle thermal energy storage with sCO₂ recompression Brayton cycles for concentrating solar power
… solar power (CSP) plants that implement supercritical carbon dioxide (sCO2) cycles at firing temperatures above 700°C. However, the design of effective particle-sCO2 HXs (HX) remains a challenge. Recent studies have explored how mild fluidization of gravity-fed particle flows can increase …
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Benchmarking of a sCO2 Heat Exchanger Flow Loop
<p>Heat transfer of supercritical carbon dioxide (sCO2) was studied experimentally by commissioning a sCO2 flow loop featuring a horizontal tube-in-tube counterflow heat exchanger with a circular cross section. The main objective was to establish experimental heat transfer research capabilities for …
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A reduced order modelling methodology for external cylindrical concentrated solar power central receivers
The use of supercritical carbon dioxide (sCO2) power cycles for concentrated solar power (CSP) applications is becoming increasingly attractive since these cycles may offer lower capital costs and increased thermal efficiency. However, there are currently no utility-scale sCO2-CSP tower plants in …
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Design and analysis of a natural draft direct dry cooling system for a supercritical carbon dioxide power cycle for CSP application
… circumference is designed and evaluated for a supercritical carbon dioxide (sCO2) power cycle for a concentrated solar power application. The system is configured to house both the precooler (PC) and intercooler (IC) heat exchangers within the same tower. Three numerical models are developed to …
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Thermofluid design and performance analysis of an air-cooled heat rejection system for a 50 MWe sCO2 concentrated solar power plant
… concentrated solar power (CSP) plants utilising supercritical carbon dioxide (sCO2) as a working fluid. This technology promises a more compact and efficient alternative to the current Rankine cycle based CSP plants. However, no such plant currently exists at the utility scale, and little is …