TY - JOUR
AU1 - P. Varene and C. Kays
AB -  33076 Bordeaux Cedex, France VARENE, PIERRE, AND CHRISTIAN KAYS. A graphic analysis of . J. Appl. Physiol. 63(4): 1374-1380, 1987.-A new graphic representation of is proposed using the concept of equivalent temperatures directly related to enthalpy values. On such a diagram it is possible to I ) compute the value of the (AH) knowing the inspired temperature (Tr) and the partial pressure of water vapor (PI ,& [or the relative humidity (rhI)] of inspired gas; 2) estimate the variation in AH following a given variation in TI and PIH,Oor, inversely, to choose the variation in Tr and PI~,~ necessary to obtain a given variation in aH, 3) dissociate inspiratory and expiratory s and to evaluate the efficiency of the process in different environmental situations; and 4 j easily compare the results of different studies published on s in humans or other animal species. enthalpy diagram; environmental tive thermophysiology thermophysiology; compara- alent temperature of the wet gas (T,). This concept has been already proposed in 1938 by Buttner (13) to calculate the enthalpy differences (AH) between inspired and expired gas. THEORY By assuming that 1) inspired and expired gases have the same volumetric mass (p) and the same specific 
TI - A graphic analysis of respiratory heat exchange
JF - Journal of Applied Physiology
DA - 1987-10-01
UR - https://www.deepdyve.com/lp/the-american-physiological-society/a-graphic-analysis-of-respiratory-heat-exchange-bG7L6NtLcz
VL - 63
IS - 
DP - DeepDyve
ER -