Comparative analysis of compact heat exchangers for application as the intermediate heat exchanger for advanced nuclear reactors
2015
A comparative evaluation of alternative compact heat exchanger designs for use as the intermediate heat exchanger in advanced nuclear reactor systems is presented in this article. Candidate heat exchangers investigated included the Printed circuit heat exchanger (PCHE) and offset strip-fin heat exchanger (OSFHE). Both these heat exchangers offer high surface area to volume ratio (a measure of compactness [m2/m3]), high thermal effectiveness, and overall low pressure drop. Helium–helium heat exchanger designs for different heat exchanger types were developed for a 600 MW thermal advanced nuclear reactor. The wavy channel PCHE with a 15° pitch angle was found to offer optimum combination of heat transfer coefficient, compactness and pressure drop as compared to other alternatives. The principles of the comparative analysis presented here will be useful for heat exchanger evaluations in other applications as well.
Keywords:
- Moving bed heat exchanger
- Mathematical optimization
- Shell and tube heat exchanger
- Micro heat exchanger
- Thermodynamics
- Plate heat exchanger
- Copper in heat exchangers
- Plate fin heat exchanger
- Heat spreader
- Composite material
- Mathematics
- Recuperator
- Mathematical analysis
- Nuclear engineering
- Concentric tube heat exchanger
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