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- W4387144433 abstract "Abstract This work describes a one-dimensional model of a water-cooled printed circuit heat exchanger (PCHE) condensing CO2. The model is developed for use in cycle optimization studies (e.g., minimizing levelized cost of electricity) as either the main heat rejection cooler and/or a compressor intercooler for recompression closed Brayton supercritical CO2 power cycles. Sensitivity and case studies are used to illustrate the impact of important model parameters, and this includes allowing for independent variation of zig-zag channel wave angles on the CO2 and water side. Results show that for a given CO2 design pressure (and thus saturation temperature), the PCHE design inlet water temperature has a significant impact on the PCHE size. Results also demonstrate that if wave angles are the same on the CO2 and water side, the water side pressure drop will have more influence on determining the optimum PCHE mass than the CO2 side pressure drop. Reducing the water side wave angle to near straight channel flow offers a more compact design for a similar water side pressure drop (and pump power requirement). Cases are also shown for further increasing the compactness and how the PCHE mass is affected along with water pump power." @default.
- W4387144433 created "2023-09-29" @default.
- W4387144433 creator A5025030425 @default.
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- W4387144433 date "2023-06-26" @default.
- W4387144433 modified "2023-10-18" @default.
- W4387144433 title "Modeling a Water-Cooled Printed Circuit Heat Exchanger Condensing CO2 for Use in sCO2 Cycle System Optimization Studies" @default.
- W4387144433 doi "https://doi.org/10.1115/gt2023-102269" @default.
- W4387144433 hasPublicationYear "2023" @default.
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