Cooling water Air injection

B. Direct Injection of Steam, Air, Methane, Cooling Water, etc. Supply line pressure plus 5 psi to 15 psi. 

Mid-Compressor Flashing of Water. In this system, the water is injected into the mid-stages of the compressor to cool the air and approach an 

In this case the temperature at the air outlet of this type condenser is generally assumed to be 5°F above the inlet temperature of the cooling water. In addition to the normally expected air leakage, an allowance must be made for air liberated from the injection water [10], 

When ejectors pull non-condensables and other vapors from a direct contact water condenser (barometric, low level jet, deaerator) there is also a release of dissolved gases, usually air, from water. This air must be added to the other known load of the ejector. Figure 6-22 presents the data of the Heat Exchange Institute [10] for the amount of air that can be expected to be released when cooling water is sprayed or otherwise injected into open type barometric or similar equipment. 

For testing, the Mod 2 burner is housed within a heavily walled pressure vessel which also serves as a plenum chamber for the preheated inlet air supply. See Ref. 16 for a description of the test facility. The burner assembly is shown schematically in Figure 2 and is designed to use 100% of the air flow in the combustion process. Thus, air film cooling and air dilution which are normally used in an engine combustor are omitted. In this way, combustion effects from air injection are avoided for the concept evaluation. The cylindrical combustion chamber is water cooled, as are the sonic exhaust nozzle and gas sample probe. 

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