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James A. Van Allen journal, December 1954-October 1955
Page 44
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Measured two of our Navy Helium cylinders and found them to both be Type H -- i.e. 9 inches x 55 inches [sketch/picture] sketch of gas cylinder: 55 inches height (including stem and valve), cylinder body 51 inches x 9 inches diameter. Physical volume ~ (π/4)((8.25/12) squared)([49? 4.9?]/12) = 1.51 cubic feet From Airco data for Argon (assuming Charles and Boyles laws) "H" Volume = 1.57 cubic feet (Volume of gas at 0 degrees Celsius) "H" Volume = 1.46 cubic feet (Volume of gas at 70 degrees Celsius) From Airco data for air (assuming perfect gas laws) "H" Volume = 1.64 if volume of gas [measured?] at 0 degrees Celsius "H" Volume = 1.51 if volume of gas [measured?] at 70 degrees Fahrenheit. Fro Airco data for He (assuming perfect gas laws) "G" Volume = 1.57 cubic feet (0 degrees Celsius) 1.46 "G" Volume = 1.46 cubic feet (70 degrees Fahrenheit)
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Measured two of our Navy Helium cylinders and found them to both be Type H -- i.e. 9 inches x 55 inches [sketch/picture] sketch of gas cylinder: 55 inches height (including stem and valve), cylinder body 51 inches x 9 inches diameter. Physical volume ~ (π/4)((8.25/12) squared)([49? 4.9?]/12) = 1.51 cubic feet From Airco data for Argon (assuming Charles and Boyles laws) "H" Volume = 1.57 cubic feet (Volume of gas at 0 degrees Celsius) "H" Volume = 1.46 cubic feet (Volume of gas at 70 degrees Celsius) From Airco data for air (assuming perfect gas laws) "H" Volume = 1.64 if volume of gas [measured?] at 0 degrees Celsius "H" Volume = 1.51 if volume of gas [measured?] at 70 degrees Fahrenheit. Fro Airco data for He (assuming perfect gas laws) "G" Volume = 1.57 cubic feet (0 degrees Celsius) 1.46 "G" Volume = 1.46 cubic feet (70 degrees Fahrenheit)
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