We are injecting 230 deg C water at 275 atm into a small chamber with air at about 30 atm at about 500 deg C. Our thinking is that the water should be instantly turning to steam when leaving the injector nozzle. We expected to see a large increase in pressure due to the vaporization and expansion, but this does not appear to be the case. Does anyone else have experience with this? Could the vaporization of the water into steam be taking energy from the chamber and lowering the temp and pressure?
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