Refractory high entropy alloy compact heat exchanger

US11725889B1 · kind B1 · utility

Assignee

• National Technology & Engineering Solutions of Sandia, LLC · US

Inventors

• Andrew Kustas · Elizabeth, US
• Salvador B. Rodriguez · Albuquerque, US
• Shaun R. Whetten · Rio Rancho, US
• Darryn Fleming · Albuquerque, US
• Nicolas Argibay · Albuquerque, US
• Deidre Hirschfeld · Tijeras, US
• Logan Madacey Rapp · Albuquerque, US

Key dates

• Filing date: Feb 25, 2020
• Grant date: Aug 15, 2023
• Expiry date: Jul 24, 2041

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F28F2260/02
• WIPO field: Thermal processes and apparatus
• WIPO sector: Mechanical engineering

Abstract

Several innovative technologies, including pressure-drop minimization, advanced refractory high entropy alloys, and advanced manufacturing can provide a compact heat exchanger that extends the state-of-the-art heat-exchanger operating range. The compact heat exchanger can reduce pressure drop losses by 100 to 500%, while retaining most of the heat transfer. The compact heat exchanger can be fabricated from refractory high entropy alloys that have favorable corrosion, thermal fatigue, and creep properties at high temperatures and pressures. Therefore, the compact heat exchanger using high entropy alloys can operate at >800° C. and 80 bars.