Next Generation Thermal Solutions

Makai Ocean Engineering provides custom, high-performance heat exchanger designs and fabrication. The proprietary technology, TFHX™, is constructed using novel advanced manufacturing methods. Makai’s facilities include manufacturing, thermal testing, and structural and fatigue testing.

TFHX™ heat exchangers can be designed for liquid, air-cooled, vapor-cycle, or phase change material applications. The technology is the result of over 10 years and over $20million of R&D. Contact us with your need– and let us provide you with a better thermal management solution.

TFHX™ Applications

 Makai is working with the Office of Naval Research, the United States Army and Air Force to develop a new ultra-compact heat exchanger, the TFHX™. The TFHX™ provides superior volumetric performance while maintaining low pressure drops. Consider the TFHX™ when volume and performance matter.



Plants & Processing

Custom TFHX™ Thermal Management Solutions

 The Fundamental Difference:
Makai’s TFHX™ consists of stacked layers of individual proprietary “plates” that together form the heat exchanger core. Manufacturing methods allow for custom non-linear geometries, ultra-compact flow channels, and corrosion resistant materials at dimensions scales from 10 cm to 1 m.

TFHX™ enables high quality control on the material properties, high smoothness, resistance to fouling, and durability; enabling production of micro-channel heat exchanger performance from small to large scale thermal loads.

Key Features

      • Ultra-compact size
      • Conformance to irregular geometries
      • Corrosion resistance
      • Easy maintenance


      • Significant volumetric performance gain
      • Negligible increase in ΔP
      • Enhanced U-values

Custom Design

      • Expert design team
      • Proven manufacturing methods
      • Rapid turnaround

Heat Exchanger Facilities

Makai’s advanced manufacturing and testing facility enables rapid prototyping and construction of custom TFHX™ geometries based on specific needs and operating conditions. Test stations are available for different fluids (water, ethylene glycol water (EGW), anhydrous ammonia, other refrigerants, oil, etc.), flow orientations, operating pressures and fatigue simulation.

100 kW Heat Exchanger Test Station

This smaller scale test station enables rapid design, prototyping, and performance and lifetime testing of heat exchangers.

4 MW Heat Exchanger Test Station

Makai’s Ocean Thermal Energy Conversion (OTEC) tower is used to test large-scale heat exchangers up to 4 MW in thermal duty.

Interested in Makai’s TFHX and Thermal Management Systems?

Contact us by sending in this form any time you need professional support or have any questions. You can also fill in the form to leave your comments or feedback for Makai’s team.