Heat-protective Ventilated Jackets: A Comparison of Humid and Dry Ventilating Air

A comparison has been made between humid and dry air for ventilating a heat-protective jacket. At sensible cooling capacities of 4·5 kcal./min. and above, humid and dry air provided equal protection. At sensible cooling capacities of 4 kcal./min. and above, the subject achieved thermal equilibrium w...

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Veröffentlicht in:	British Journal of Industrial Medicine 1967-01, Vol.24 (1), p.52-59
Hauptverfasser:	Crockford, G. W., Lee, D. E.
Format:	Artikel
Sprache:	eng
Schlagworte:	Air flow Body Temperature Regulation Cooling Environmental Health Evaporative coolers Heart rate Humans Humidity Occupational Medicine Skin temperature Steel industry Sweat Sweating Thermodynamic equilibrium Uniformity Ventilation
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	A comparison has been made between humid and dry air for ventilating a heat-protective jacket. At sensible cooling capacities of 4·5 kcal./min. and above, humid and dry air provided equal protection. At sensible cooling capacities of 4 kcal./min. and above, the subject achieved thermal equilibrium within 65 min. with both humid and dry air, but below this value humid ventilating air is associated with elevated sweat rates and a failure to achieve thermal equilibrium within 65 minutes.
ISSN:	0007-1072 1351-0711 1470-7926
DOI:	10.1136/oem.24.1.52