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1947-48 Theatre Catalog, 6th Edition, Page 416 (402)

1947-48 Theatre Catalog, 6th Edition
1947-48 Theatre Catalog
1947-48 Theatre Catalog, 6th Edition, Page 416
Page 416

1947-48 Theatre Catalog, 6th Edition, Page 416

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FLOW CHART of lhe Kathabar system shows how the contactor drains the used Kathene into the sump. from which the liquid is drawn by a pump. Part of the iluid is heated and passed through the reg-anerator, while the other portion is routed back to the contacter lor re-use. Required is (I circulating pump and a regenerate: fan. Power requirements are small compared with refrigeration requirements.

changing temperature has many advantages, not only from the standpoint of operating cost but from a simplification of controls. This is the principle on which the Kathabar System operates.

Engineers are finding that humidity control in air-conditioned buildings can be more easily achieved at the source, that is, by humidity conditioning the make-up air taken from outdoors. When this is done, the cooling load is reduced approximately one-third and the power requirements for operating the remaining cooling equipment are reduced as much as 15 to 20 percent. In many cases, adequate cooling can be accomplished with Well water alone. This simplifies the entire problem by eliminating face and by-pass dampers, cooling coils compromised for both temperature and humidity reduction, expensive coils for reheating, and insures dry, clean coils, thereby eliminating one of the great sources of dissatisfaction-wet, dirty coils, which contribute to odors in the conditioned space.


It is not uncommon on a sultry, summer day to experience difiiculty with the common salt shaker clogging up because its contents had absorbed moisture from the air and gotten soggy. Obviously, if there were enough salt shakers in the immediate vicinity, all the moisture in that air would be absorbed and persons present would be relieved of that sense of depression caused by heavy humid air. Kathabar is, in eifect, the means of supplying enough salt or absorbent to reduce the humidity in the air to any desired point.

Kathabar uses a simple, healthful salt known as lithium chloride in solution, which comes into direct contact with the air being conditioned. There are many kinds of salt, some having greater aliinity for water vapor or absorbing power than others. Lithium chloride is one of the most powerful absorbents and has proved to be the most practicable for air-conditioning purposes.

Kathene (lithium chloride and water) not only absorbs atmospheric moisture readily, but it can be regeneratedethat is, the moisture which has been absorbed from the air can be readily removed from the solution by simply heating a small percentage of it automatically. Thus, the same solution can be reused any number of times.

Kathene solution used in the Kathabar System has another valuable characteristic for the selective control of humidity. Its absorbing ability can be controlled simply by controlling its temperature. The lower the temperature of the Kathene solution, the more moisture it will absorb and, conversely, the higher its temperature the less it absorbs, until a point is reached where it absorbs no moisture at all. Beyond that point, it gives up moisture to the air. Thus, the same lithium chloride solution or Kathene can also be effectively used to add humidity to the air simply by raising its temperature. Makeup water is automatically added to the solution so that a wide range of humidity control is thus provided.

The functioning of the Kathabar System is extremely simple, requiring only a small circulating pump and a small regencrator fan. The power require THEATRE CATALOG 1947-48
1947-48 Theatre Catalog, 6th Edition, Page 416