A METHOD OF HUMAN CALORIMETRY

Abstract

Evaporation was determined by use of an infra-red gas analyzer. Metabolic heat production was calculated from the rate of oxygen consumption, measured continuously by a closed circuit apparatus. Radiative transfer was calculated from the average wall and skin temperatures which were measured by specially designed thermocouple assemblies. The change in heat content for the entire experiment was determined from changes in the rectal and mean skin temperatures. This value was substituted in the thermal equation, C = delta H/t - (M + E + R), to obtain an average rate of convection. This rate of convection was partitioned over short intervals according to the difference between air and mean skin temperatures. The short interval values of convection were then substituted in the thermal equation to give short interval values for delta H.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1947
Accession Number
AD0492625

Entities

People

  • Charles R. Park
  • Edward D. Palmes

Organizations

  • United States Army Medical Research Laboratory

Tags

DTIC Thesaurus Topics

  • Air Temperature
  • Assembly
  • Body Temperature
  • Calorimetry
  • Convection
  • Enthalpy
  • Environment
  • Equations
  • Heat Transfer
  • Human Body
  • Humidity
  • Intervals
  • Measurement
  • Production
  • Temperature Gradients
  • Thermocouples
  • Wind Velocity

Readers

  • Exercise and Sports Science.
  • Thermal Physics or Thermal Science.