TEMP. -°F 



% RELATIVE 

 HUMIDITY 



O r^ An ^ „ qOOOOOOqOOOQqOqOOOoqo 



O^OOOqO 



CREW QUARTERS 



o Q o o o o , o o 9 o o O'Gq Q O O oQ o 



oo© 



TEMP.- °F 



% RELATIVE 

 HUMIDITY 



TEMP.- OF 



% RELATIVE 

 HUMIDITY 



OOOYGqOOOOOOGQOOOOOQOOoOooOO 



50 

 40 



BRIDGE 



O©oOOoOQ0OOO0QOOQoqOOOOOOoO 



28 DAYS 



OOOGiGOOQOOOOOO ■*- 



75 60> 



50 

 40 



o®o O0®9ooo6o0 



ENGINE ROOM 



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16 



24 



28 DAYS 



TEMP- OF 



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75 60^ 



> RELATIVE 

 HUMIDITY 50 



40 



o 



i^ 



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4 8 12 16 20 24 



Figure 23. Changes in Temperature and Relative Humidity 



28 DAYS 



The aquanauts never had need to utilize the emergency breathing or purge 

 systems. However, there were several occasions during refurbishment between 

 missions when these systems were required. One occurred when an analyzer power 

 supply failed and filled the habitat with smoke. In both cases, a purge was 

 initiated successfully and support divers working in the habitat utilized the 

 Bib system until the contaminated atmosphere was cleared. Fresh charcoal was 

 also installed in the air conditioning systems in these instances. 



To maintain the quality of breathing gas in the habitat, careful attention was 

 given to the selection of all materials used in the habitat and its furnishings 

 and to all chemicals, equipment, and personal gear taken into the habitat. 

 This approach in avoiding atmosphere contamination worked very well in both 

 TEKTITE I and II and should continue to be used in future programs. 



The umbilical which connected the generator system to the habitat was a 1,000- 

 foot long armored submarine cable housing three #1/0 electrical conductors. 

 This cable carried 30 power at a 480 volt level to the habitat where it was 

 transformed to three different operating voltages (30 - 460 V, 20 - 240 V, and 



11-38 



