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A 2-5 MW Supercritical CO2 micro tube recuperator: manufacturing, testing, and laser weld qualification

Award Information
Agency: Department of Energy
Branch: ARPA-E
Contract: DE-AR0001118
Agency Tracking Number: 1972-1504
Amount: $244,992.00
Phase: Phase I
Program: SBIR
Solicitation Topic Code: -
Solicitation Number: DE-FOA-0001972
Solicitation Year: 2018
Award Year: 2019
Award Start Date (Proposal Award Date): 2019-09-18
Award End Date (Contract End Date): 2020-09-18
Small Business Information
10246 Mammoth Ave
Baton Rouge, LA 70814
United States
DUNS: 841519098
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Kevin Kelly
 (225) 442-6965
Business Contact
 Mark Turner
Title: Director of Finance
Phone: (225) 442-6964
Research Institution

Mezzo and its partners will design, manufacture, and test a supercritical CO2 recuperator designed for high pressure of 275 bar and high temperature of 800 0C. The recuperator will incorporate a new manufacturing approach (laser welded micro tubes) that offers potential to reduce cost. It is well known that recuperator costs are currently very high for applications that involve high temperature and high pressure. By reducing those costs, the SCO2 industry becomes more viable.
The project will focus on designing and manufacturing a modular unit that can scale to handle a range of loads in the 2-20 MW range. The design will incorporate features that naturally lead to lower cost. Parallel with the design process, testing of the critical laser welds at high temperature will be completed to reduce risk associated with the current, unknown behavior of micro laser-welded joints at high temperature. At the conclusion of this program, a high temperature-high pressure recuperator will have been manufactured, the technical risks associated with laser welding will have been quantified, and accurate costs for future commercial activities will be known. The expectation is that those costs will be lower than competing approaches.

* Information listed above is at the time of submission. *

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