MIXING ENHANCEMENT USING AXIAL FLOW
(U.S. Patent pending)

What it is ...

Operating conditions

Applications

Round-jet experiments

2D-jet experiments

Twin-fluid atomization

Investigation of fundamental physics

Technology Exchange

The future...

Sponsorhip

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Application of MESPI to twin fluid atomization

Coaxial liquid-air jet without MESPI          Coaxial liquid-air jet with MESPI
ai00401.jpg (29088 bytes) ai00301.jpg (44512 bytes)

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Efficiency of combustion systems, and attendant reduction of pollutants, depends strongly on the degree to which fuel and air are mixed before they react. This experimental program, funded by the University of California Energy Institute, will exploit MESPI to enhance mixing in air-assisted liquid injectors. Model injectors will be constructed and their mixing characteristics will be assessed by high-speed photography and laser imaging . The advantage of MESPI is:

  • simplicity and compactness of the nozzle shapes;
  • preservation of the momentum of the injectants, which is important for deep penetration of the fuel into the combustion zone.

The research is expected to impact the design of fuel injectors for internal combustion engines, jet engines, rocket engines, industrial burners, and incinerators.

See a potential application in hypersonic combustion

Researcher: Dr. Marco Debiasi

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