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Showing 1 to 11 of 11 for “"thermohydraulic"”.
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A Thermohydraulic Mechanism Incorporated Modeling of Self-Cleaning Modular Helium Reactor
Made available in DSpace on 2017-07-06T18:59:37Z (GMT). No. of bitstreams: 3 Yun_Di_MS.pdf: 34942578 bytes, checksum: c45cadd377a5c657960ba9a77a8cae11 (MD5) Yun_Di_MS_ABS.pdf: 546311 bytes, checksum: 632fce2560c636a847910e14a5e5e7a4 (MD5) license.txt: 4813 bytes, checksum: …
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Thermohydraulic Performance of Supercritical Carbon Dioxide (sCO2) in Horizontal Enhanced Surface Tubes
… research has been conducted examining the thermohydraulic performance of sCO2 in non standard or enhanced surface geometry despite their increasing use in high performance heat exchangers. Recent research has explored enhanced surface tubing (twisted oval, spirally fluted, and dimpled …
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Determining appropriate loss coefficients for use in the nozzle-model of a stage-by-stage turbine model
… model a turbine stage. Utilizing Flownex, a thermohydraulic network solver, the turbine stage component can be expanded to accurately model any arrangement and category of turbine. This project focused on incorporating turbine blade passage geometrical information, as it relates to the …
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Increasing Cermet Fuel Thermal Margin with Thoria for Nuclear Thermal Propulsion
… were studied using a one-dimensional axial thermohydraulic analysis of an equivalent annulus model of the average fuel coolant channel. Based on the one-dimensional analysis, fuel composition was adjusted leading to a fuel mass decrease of 5.45 kilograms, excess-reactivity reduction of 962 …
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Surface structure enhanced microchannel flow boiling of low surface tension fluids
… by the addition of surface microstructures. Thermohydraulic performance in terms of critical heat flux (CHF) and heat transfer coefficient (HTC) have also benefited from surface modification, without significantly adding to the overall flow pressure drop. For some microelectronic …
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Hot dry rock reservoir modelling
… of these shortcomings, a fully coupled transient thermohydraulic (TH)model of an HDR geothermal reservoir is developed using the finite element method. The model is developed based on the open outlooks of HDR geothermal reservoir concepts established in the US, UK and France and is carried out …
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Development of a dynamic modelling of biomass boilers using flownex
… been developed using Flownex, a one-dimensional thermohydraulic simulation software with the aim of presenting credible insights into transient performance and controllability of the boiler of interest. This study develops stand-alone numerical models of the economiser, air heater, fire-tube …
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Thermohydraulics and suppression of nucleate boiling in upward two-phase annular flow : probing multiscale physics by innovative diagnostics
… power density, a thorough understanding of the thermohydraulic mechanisms and an accurate prediction of the transition conditions for SNB in annular flow is quite desirable. An innovative diagnostic technique combining synchronized infrared thermography and an electrical conductance-based liquid …
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Charge-sensitive methods for the off-design performance characterization of organic Rankine cycle (ORC) power systems
… wide range of conditions. Besides of standard thermohydraulic sensors, the fluid charge distribution is measured on-line by bending load cells and infrared imaging techniques. Following a complete experimental campaign (which includes more than 300 steady-state points), a dual reconciliation …
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Component development for a high fidelity transient simulation of a coal-fired power plant using Flownex SE
… Flownex Simulation Environment, a onedimensional thermohydraulic network solver. The components have been modelled all with the aim of using minimal design input data. The feedwater heater component model includes transient effects and thermodynamic relations to represent aspects such as heater …