| About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing for Energy Applications IV
|
| Presentation Title |
Co-design of Parts and Processing for Additively Manufactured Heat Exchangers |
| Author(s) |
Nicholas L. Lamprinakos, Ziheng Wu, Junwon Seo, Srujana Rao Yarasi, Anthony Rollett |
| On-Site Speaker (Planned) |
Nicholas L. Lamprinakos |
| Abstract Scope |
A key advantage to additive manufacturing is the ability to directly fabricate parts with complex geometries. In the energy sector, this can be leveraged to create more efficient heat exchangers that would be difficult to produce using conventional processes. However, when printing intricate features, challenges such as thermal distortion must be overcome. In this project, high-temperature heat exchangers were designed to be printed from superalloy powder via laser powder bed fusion. Modifications to the input part geometry and processing parameters were explored together to optimize the printed components. This allowed for heat exchangers to be printed to the desired geometric tolerances for small internal features without sacrificing heat exchanger performance. Post-processing techniques, including abrasive flow machining, were also studied to reduce the internal surface roughness. A 20 kW prototype heat exchanger that is applicable to loading cycles at 200 bar and above 720°C was fabricated. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Copper / Nickel / Cobalt, |