Flexenergy Energy Systems, Inc.

Flexenergy

Brian Finstad

Shaun Sullivan

Alexander Haplau-Colan

Gary Manter

Chris Bolin

Yimin Huang

Christopher David Bolin

Sean Sullivan

A heat exchanger includes an outer tube having a first axial end and a second axial end, and a pressure barrier tube positioned generally concentric to and within the outer tube such that a first flowpath is defined axially through at least a portion of the outer tube and radially between the outer tube and the pressure barrier tube. A second flowpath is defined within and at least partially axially through the pressure barrier tube. The heat exchanger also includes a first plurality of fins coupled to and extending between the outer tube and the pressure barrier tube, through the first flowpath, and a second plurality of fins coupled to and extending radially inward from the pressure barrier tube, through the second flowpath. A first fluid in the first flowpath exchanges heat with a second fluid in the second flowpath via heat transfer through the first plurality of fins, the pressure barrier tube, and the second plurality of fins.

Tube-fin heat exchanger

A heat exchanger includes a casing having a first inlet, a first outlet, a second inlet, and a second outlet, and a plate assembly positioned between the first inlet and the first outlet and between the second inlet and the second outlet and at least partially in the casing, the plate assembly is being configured to transfer heat between a first fluid and a second fluid. The heat exchanger also includes a first plenum connecting a first side of the plate assembly and configured to direct the first fluid from first inlet to the plate assembly, and a second plenum connecting a second side of the plate assembly and configured to direct the first fluid from the plate assembly to the first outlet. An exterior of the second plenum is in contact with the second fluid, and the second plenum is configured to resiliently deflect in response to thermal expansion.

Counter-flow heat exchanger

A combustor for a gas turbine engine is disclosed which is able to operate with high combustion efficiency, and low nitrous oxide emissions during gas turbine operations. The combustor consists of a can-type configuration which combusts fuel premixed with air and delivers the hot gases to a turbine. Fuel is premixed with air through a swirler and is delivered to the combustor with a high degree of swirl motion about a central axis. This swirling mixture of reactants is conveyed downstream through a flow path that expands; the mixture reacts, and establishes an upstream central recirculation flow along the central axis. A cooling assembly is located on the swirler co-linear with the central axis in which cooler air is conveyed into the prechamber between the recirculation flow and the swirler surface.

Air-cooled swirlerhead

Growing community of inventors

Portsmouth, NH, United States of America

Brian Finstad