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In addition to storage rental, Portland Wine Storage can now offer wine cabinets for your home. By replacing motors and compressors with the patented Electrolux absorption and evaporation process, these tasteful cabinets operate silently and without vibration. This environmentally responsible product from Sweden uses less energy than other wine cabinets and has an exceptional lifespan. We are proud to be the Northwest's exclusive source of Dometic's superior product. Please call for an appointment to see some of the models and customized features. |
Portland Wine Storage, Inc.
 
 
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Technical Information
The
absorption system is comprised of four main parts—the
boiler, condenser, evaporator and the absorber. To produce cold, heat is supplied to the boiler system and bubbles of
ammonia gas are produced, which rise and carry with them quantities of
weak ammonia solution through the siphon pump. This weak
solution passes into the tube while ammonia vapor passes into the
vapor pipe, and on to the water separator. Here any water vapor
is condensed and runs back into the boiler system leaving the dry ammonia
vapor to pass to the condenser. Air circulating over the fins of the condenser removes heat from the
ammonia vapor to cause it to condense into liquid ammonia. In this
liquid state, it flows into the evaporator. The evaporator is supplied with hydrogen. The hydrogen passes across
the surface of the ammonia and lowers the ammonia vapor pressure
sufficiently to allow the liquid ammonia to evaporate. The
evaporation of the ammonia extracts heat from the evaporator which in turn
extracts heat from the food storage space, as described above, thereby
lowering the temperature inside the refrigerator. The mixture of ammonia and hydrogen vapor then passes from the evaporator
to the absorber. Entering the upper portion of the absorber is a continuous trickle of weak
ammonia solution. When this solution comes in contact with the mixed
ammonia and hydrogen gases, it is readily absorbed, leaving the hydrogen
free to return to the evaporator and begin another cycle. The now
stronger ammonia solution returns to the boiler system and is re-heated,
thus completing the full cycle of operation. |
Last Modified: September, 2007