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Title: Compact Heat Exchanger Design and Testing for Advanced Reactors and Advanced Power Cycles

Abstract

The goal of the proposed research is to demonstrate the thermal hydraulic performance of innovative surface geometries in compact heat exchangers used as intermediate heat exchangers (IHXs) and recuperators for the supercritical carbon dioxide (s-CO 2) Brayton cycle. Printed-circuit heat exchangers (PCHEs) are the primary compact heat exchangers of interest. The overall objectives are: To develop optimized PCHE designs for different working fluid combinations including helium to s-CO 2, liquid salt to s-CO 2, sodium to s-CO 2, and liquid salt to helium; To experimentally and numerically investigate thermal performance, thermal stress and failure mechanism of PCHEs under various transients; and To study diffusion bonding techniques for elevated-temperature alloys and examine post-test material integrity of the PCHEs. The project objectives were accomplished by defining and executing five different tasks corresponding to these specific objectives. The first task involved a thorough literature review and a selection of IHX candidates with different surface geometries as well as a summary of prototypic operational conditions. The second task involved optimization of PCHE design with numerical analyses of thermal-hydraulic performances and mechanical integrity. The subsequent task dealt with the development of testing facilities and engineering design of PCHE to be tested in s-CO 2 fluidmore » conditions. The next task involved experimental investigation and validation of the thermal-hydraulic performances and thermal stress distribution of prototype PCHEs manufactured with particular surface geometries. The last task involved an investigation of diffusion bonding process and posttest destructive testing to validate mechanical design methods adopted in the design process. The experimental work utilized the two test facilities at The Ohio State University (OSU) including one existing High-Temperature Helium Test Facility (HTHF) and the newly developed s-CO 2 test loop (STL) facility and s-CO 2 test facility at University of Wisconsin – Madison (UW).« less

Authors:
 [1];  [1];  [1];  [2]
  1. The Ohio State Univ., Columbus, OH (United States)
  2. Univ. of Wisconsin, Madison, WI (United States)
Publication Date:
Research Org.:
The Ohio State Univ., Columbus, OH (United States)
Sponsoring Org.:
USDOE Office of Nuclear Energy (NE)
OSTI Identifier:
1437159
Report Number(s):
13-5101
13-5101
DOE Contract Number:
NE0000706
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English

Citation Formats

Sun, Xiaodong, Zhang, Xiaoqin, Christensen, Richard, and Anderson, Mark. Compact Heat Exchanger Design and Testing for Advanced Reactors and Advanced Power Cycles. United States: N. p., 2018. Web. doi:10.2172/1437159.
Sun, Xiaodong, Zhang, Xiaoqin, Christensen, Richard, & Anderson, Mark. Compact Heat Exchanger Design and Testing for Advanced Reactors and Advanced Power Cycles. United States. doi:10.2172/1437159.
Sun, Xiaodong, Zhang, Xiaoqin, Christensen, Richard, and Anderson, Mark. Sat . "Compact Heat Exchanger Design and Testing for Advanced Reactors and Advanced Power Cycles". United States. doi:10.2172/1437159. https://www.osti.gov/servlets/purl/1437159.
@article{osti_1437159,
title = {Compact Heat Exchanger Design and Testing for Advanced Reactors and Advanced Power Cycles},
author = {Sun, Xiaodong and Zhang, Xiaoqin and Christensen, Richard and Anderson, Mark},
abstractNote = {The goal of the proposed research is to demonstrate the thermal hydraulic performance of innovative surface geometries in compact heat exchangers used as intermediate heat exchangers (IHXs) and recuperators for the supercritical carbon dioxide (s-CO2) Brayton cycle. Printed-circuit heat exchangers (PCHEs) are the primary compact heat exchangers of interest. The overall objectives are: To develop optimized PCHE designs for different working fluid combinations including helium to s-CO2, liquid salt to s-CO2, sodium to s-CO2, and liquid salt to helium; To experimentally and numerically investigate thermal performance, thermal stress and failure mechanism of PCHEs under various transients; and To study diffusion bonding techniques for elevated-temperature alloys and examine post-test material integrity of the PCHEs. The project objectives were accomplished by defining and executing five different tasks corresponding to these specific objectives. The first task involved a thorough literature review and a selection of IHX candidates with different surface geometries as well as a summary of prototypic operational conditions. The second task involved optimization of PCHE design with numerical analyses of thermal-hydraulic performances and mechanical integrity. The subsequent task dealt with the development of testing facilities and engineering design of PCHE to be tested in s-CO2 fluid conditions. The next task involved experimental investigation and validation of the thermal-hydraulic performances and thermal stress distribution of prototype PCHEs manufactured with particular surface geometries. The last task involved an investigation of diffusion bonding process and posttest destructive testing to validate mechanical design methods adopted in the design process. The experimental work utilized the two test facilities at The Ohio State University (OSU) including one existing High-Temperature Helium Test Facility (HTHF) and the newly developed s-CO2 test loop (STL) facility and s-CO2 test facility at University of Wisconsin – Madison (UW).},
doi = {10.2172/1437159},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sat Mar 31 00:00:00 EDT 2018},
month = {Sat Mar 31 00:00:00 EDT 2018}
}

Technical Report:

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