![]() Their power consumption is very small in comparison with a steam humidifier. However, adiabatic humidifiers or adiabatic coolers use the heat already present in air to produce the vapor. When we boil water to increase the ambient relative humidity we need a source of energy. This is the opposite situation of case 2, if we have a point near B, say having dryness factor of 0.2, further compressing (say to FG line, 1 Mpa) will lead us to a point on the FG line with dryness factor that is lower than 0.2, meaning less vapor content (condensation). Adiabatic humidification and adiabatic cooling can reduce energy costs. If there is more water than steam, steam is condensed during. ![]() ![]() If we have a point between point B and C at P = 0.1 MPa with a dryness factor of 0.8 (near point C) for example meaning that we have greater amount of vapor than water, further compressing (say to FG line, 1 Mpa) will lead us to a point that could be very close to saturated vapor line (higher dryness factor than 0.8) or in the superheated region, which means steam (more precisely vapor) is generated in both cases. If the initial steam weight is greater than that of the water, steam is generated by the compression. In a reciprocating engine, the piston and cylinder type of steam engine, steam under pressure is admitted into the cylinder by a valve mechanism.Suppose we have a steam located at point C or G or K where dryness factor = 1 (no water), further compressing/pressurizing of the steam will make the substance end up in the superheated vapor region (outside the saturation dome). If we start with pure saturated steam, without admixture of water, it.
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