Description of a direct-indirect room-sized calorimeter.

  title={Description of a direct-indirect room-sized calorimeter.},
  author={James L. Seale and William Rumpler and P W Moe},
  journal={The American journal of physiology},
  volume={260 2 Pt 1},
A calorimeter suitable for measuring human energy expenditure has been assembled by the US Department of Agriculture in Beltsville, Maryland. The room-sized calorimeter is 3.05 X 2.74 X 2.44 m (20.39 m3). Direct and indirect calorimetry methods are used to simultaneously measure heat emission and energy expenditure. A water-cooled gradient layer chamber is used to measure human heat production directly. Indirect calorimetry is ascertained by measuring the changes in gas composition of the air… CONTINUE READING

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