Abstract
We have carried out stability testes of emulsion, and corrosion tests of engine parts, in laboratory and test engine, for reliability of engine, using water-emulsifield fuel.
The following has been found.
(1) . High water content emulsion of A-marine diesel oil without surfactant has low stability, so that, separation of oil and water occur within a few minutes. However, one with surfactant is very stable, and is able to use practically.
(2) . In case of C-marine fuel oil, emulsion without surfactant is stable.
(3) . The emulsified fuel without surfactant is extremely corrosive, However, one with surfactant is not corrosive.
(4) . Water-emulsified fuels cause significant abration to the plunger and barrel of the fuel injection pump. A TiN-coated plunger is used as a effective method against abration.
