2.2.2 Water vapor cleaners
major difference is the vapor pressure of a mixture of ammonia / water versus water / lithium bromide. And ammonia as a refrigerant -33.350c normal boiling point and therefore the pressure of such a system at temperatures normally found in air conditioning and refrigeration applications is quite high. Pressure is comparable to the vapor compression system that uses refrigerant R22 is the pressure high, leading to the small pipes and heat exchangers are compact, relatively as compared to the water / LiBr important differences. The second is to absorb the (water) pressure is not small compared with that of ammonia. As a result, the steam generated in the desorber a certain amount of water. (The mass depends on the mass of the liquid mixture in the desorber, temperature and design desorber. Any water in the vapor desorber harm the performance of the system) water through the steam to the condenser into. Evaporation of water tends to accumulate if the boiler is not good design is used. From the vapor-rich ammonia. Although there is still some water mass of ammonia vapor is much higher than the water vapor out desorber will remain in the evaporator. If no other measures are taken evaporating temperature has to be increased substantially to evaporate water solution rich in the rest. Accumulation of water can lead to reduced pressure evaporation, which will affect the absorber. As water accumulates in the evaporator reduced pressure, temperature, evaporation rate which is fixed by the application. Luck has either to be cooled to a lower temperature, or the mass of the solution changed to content ammonia under suppose desorber Temps do not change the temperature of the condenser must be reduced, which is prohibited by default. coolant temperature is provided with a condenser. The high voltage levels need to be raised and desorber temperature will increase as well. As the water continues to accumulate in the evaporator operating conditions of the system drift and operating conditions of the design is possible. One way to prevent excess water is drained periodically as a shock, however, this approach demonstrates the loss of efficiency in two ways, the first being evaporated in the desorber to thermal desorber, but it's not. has faded in the evaporator; Therefore, it does not provide cooling capacity. Secondly, there are a lot of ammonia is stored as a liquid expansion effect.
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