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CISDOC database

Document ID (ISN)100562
CIS number 02-1886
ISSN - Serial title 0095-6562 - Aviation, Space, and Environmental Medicine
Year 2002
Convention or series no.
Author(s) Cadarette B.S., Levine L., Kolka M.A., Proulx G.N., Correa M.M., Sawka M.N.
Title Heat strain reduction by ice-based and vapor compression liquid cooling systems with a toxic agent protective uniform
Bibliographic information July 2002, Vol.73, No.7, p.665-672. Illus. 13 ref.
Abstract The purpose of this study was to compare a vapour compression microclimate cooling system (MCC) and a personal ice cooling system (PIC) for their effectiveness in reducing physiological strain when used with cooling garments worn under the impermeable self-contained toxic environment protective outfit (STEPO). A second comparison was done between the use of total body and hooded shirt-only cooling garments with both the MCC and PIC systems. Eight subjects (six men, two women) attempted four experiments at 38░C, 30% rh, 0.9m/sec wind, while wearing the STEPO. Subjects attempted four hours of treadmill walking (rest/exercise cycles of 10/20min) at a time-weighted metabolic rate of 303▒50W. It was found that the total body circulating liquid cooling was more effective than shirt-only cooling under the impermeable STEPO uniform. The MCC and PIC systems were equally effective during heat exposure, but neither system could allow reaching the four-hour targeted time.
Descriptors (primary) chemical protective clothing; liquid-cooled suits; heat load
Descriptors (secondary) body-core temperature; skin temperature; thermal comfort; threshold of discomfort; pulse rate; exercise tests; energy metabolism
Document type D - Periodical articles
Country / State or ProvinceUSA
Subject(s) Heating, ventilation and climate
Broad subject area(s) Physical hazards
Browse category(ies) Heat and cold
Protective clothing