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13 MORE Things That Saved Apollo 13, part 5: The CO2 Partial Pressure Sensor
Headlines from the Topeka (Kansas) Daily Capital newspaper from April 1970 told of the perils facing the crew of Apollo 13.
The Apollo 13 accident crippled the spacecraft, taking out the two main oxygen tanks in the Service Module. While the lack of oxygen caused a lack of power from the fuel cells in the Command Module, having enough oxygen to breathe in the lander rescue craft really wasn’t an issue for the crew. But having too much carbon dioxide (CO2) quickly did become a problem.
The Lunar Module, which was being used as a lifeboat for the crew, had lithium hydroxide canisters to remove the CO2 for two men for two days, but on board were three men trying to survive in the LM lifeboat for four days. After a day and a half in the LM, CO2 levels began to threaten the astronauts’ lives, ringing alarms. The CO2 came from the astronauts’ own exhalations.
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Read the rest of 13 MORE Things That Saved Apollo 13, part 5: The CO2 Partial Pressure Sensor (1,176 words)
© nancy for Universe Today, 2015. |
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Post tags: Apollo, Apollo 13, Apollo Caution and Warning System, carbon dioxide, Ed Smylie, Fred Haise, Jack Swigert, Jerry Woodfill, Jim Lovell, mission control
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Source: http://www.universetoday.com/119857/13-more-things-that-saved-apollo-13-part-5-the-co2-partial-pressure-sensor/
